Combined Formatted Abstracts

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) Department of Math. Stat. & Physics Punjab Agricultural University, Ludhiana E-mail:[email protected] Polymer nanocomposites are materials in which nanosized particles at least in one dimension are completely diffused inside an organic polymer solution. Polymer nanocomposites can act as alternative for conventional filled polymers as they showcase highly improvised properties as compared to traditional composites. Polymer nanocomposites express extreme enhancement in many properties like higher strength, stiffness, optical response & dimensional stability. In the present research, semiconducting nanoparticles of Cadmium Selenide (CdSe) were successfully synthesized in Polyvinyl Alcohol (PVA) matrix and casted on glass substrate at room temperature of 30 C through Chemical Bath Deposition (CBD) technique. Various optical properties including Absorbance (A), Transmittance (T), Refractive index (n), Extinction coefficient (k), Real ( 1) and Imaginary ( 2) parts of dielectric constant and Optical conductivity ( opt) were evaluated as a function of wavelength ranging from 300 nm to 700 nm using UV-Visible spectrophotometer. The PVA capped CdSe nanocomposite showed the highest activity and optical response in the lower wavelength range of 350 nm to 500 nm. The optical band gap and size of polymer capped nanoparticles was obtained to be 2.87 eV and 2.77 nm respectively. NM-16 Evidence of Two Tetragonal Phases in Nano-BF-xPT (x=0.4) powder and its Effect on Magnetic Properties Pappu Kumar Harijan School of Materials Science & Technology Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, India Email: [email protected] Nano-Crystalline powder of bimuth ferrite-lead titanate (BF-0.4PT) was synthesized by wet chemical method like sol-gel process. It is already being established that bismuth ferrite is one of the most promising multiferroic materials which have both Néel temperature and Curie temperature are well above the room temperature. This raise the possibility of developing potential devices based on magneto-electric coupling at room temperature. The magneto- electric coupling is an interesting phenomenons where cross-coupling exist between electric and magnetic interactions. This kind of coupling is very important from the applications point of view for developing new generation multifunctional sensor, actuator and data storage devices.The synthesis has been successfully achieved by using maleic acid as chelating agent. The calcinations of gel at 550 °C yielded pure BF-0.4PT powders, with average particle size of 40 nm as determined using scanning electron microscopy (SEM). Rietveld analysis of room temperature x-ray diffraction data of BF-0.4PT shows that the system has two tetragonal phases with tetragonality of 8.82% and 1.18%. Room temperature M-H measurement reveals exchange bias of ~100 Oe, which confirms core-shell type structure present in nano BF-0.4PT powder. NM-17 Electrochemical Study of Nanocomposite of Nickel Cobalt Oxide with Reduced Graphene Oxide 51

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) Poonam Siwatch1, Kriti Sharma2, Nirmal Manyani1, S. K. Tripathi1, a) 1Department of Physics, Centre for Advanced Study in Physics, Panjab University, Chandigarh,160014, India 2Department of Physics, G.G.D.S.D. College, Sector 32-C, Chandigarh, 160014, India a)Corresponding author: [email protected] Nickel cobalt oxide has been explored as one of the most promising mixed metal oxide because of its low cost, abundance in nature, better electrochemical and redox activity and higher theoretical capacitance than Ni oxide and Co oxide. Also, reduced graphene oxide is a low cost alternative of graphene. So, in the present work, Nanocomposite of nickel cobalt oxide-reduced graphene oxide has been prepared by the hydrothermal method for its application as the electrode material for supercapacitor. The structure and texture of the nanocomposite is characterized by X-ray diffraction, Fourier transform infra-red spectroscopy and Field emission scanning electron microscopy. The supercapacitive properties are studied by cyclic voltammetry and galvanostatic charge-discharge measurements. The values of specific capacitance, energy density and power density have been evaluated to be 205 F g-1, 34.5 W h kg-1 and 412 W kg-1 respectively. These results may be ascribed to the highly porous interpenetrating superstructures formed which enhanced ion diffusion and better electrochemical behaviour. Also, the electrochemical impedance spectroscopy studies are done to find the various resistances associated with the electrochemical process. NM-18 Green Synthesis of Silver Nanoparticles using Ocimum Tenuiflorum Leaf Extract: Characterization, Antioxidant and Catalytic Activity Jagdeep Singh1,a), Sachin Kumar1,b) and A.S. Dhaliwal2,c) 1,2,) Department of Physics, Sant Longowal Institute of Engineering and Technology, Longowal 148106, Punjab, India Email: a) [email protected], b) [email protected] , c) [email protected] Bioinspired synthesis of silver nanoparticles (AgNPs) is extremely beneficial as it is natural and economical. The facile and rapid aqueous synthesis of silver nanoparticles is carried out by bioinspired leaf extract of Ocimum tenuiflorum (Tulsi). It acts as reducing as well as stabilizing agent in the synthesis procedure. The change in colour from colourless to radish brown gives the primary indication and further it is confirmed by Surface Plasmonic Resonance (SPR) band at 415 nm in absorbance spectra. Furthermore, synthesized silver nanoparticles are characterized by various analytical techniques, such as, UV-Vis, FTIR, XRD, FE-SEM, and EDX (Energy-Dispersive X-ray Spectroscopy), which confirm the formation of crystalline nature with biological capping spherical shaped silver nanoparticles. The antioxidant potential of synthesized silver nanoparticles is assessed through DPPH (2,2-diphenyl-1-picrylhydrazyl) assay and found that they possess good antioxidant potential. The catalytic activity of synthesized silver nanoparticles is also determined and the results reveal that they show good catalytic reduction of methylene blue dye in the presence of NaBH4 and the studies provides the promising bioinspired nanomaterial for degradation of methylene blue dye in aqueous phase. 52

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) NM-19 Compositional Dependence of structural Properties and Bandgap of Mg-Co Spinel Nanoferrite R. Verma1, S. S. Modak2, U. P. Deshpande3 and S. N. Kane1, a 1Magnetic Materials Laboratory, School of Physics, D. A. University, Khandwa Road, Indore 2Physics Department, Jaypee University of Engineering and Technology, Raghogarh, Guna UGC-DAE Consortium for Scientific Research, University Campus Khandwa Road, Indore- a)Corresponding author: [email protected] Compositional dependence of structural properties, bandgap energy of sol-gel auto-combustion synthesized Mg1-xCoxFe2O4 (x = 0.0  1.0) spinel nano ferrites is studied by XRD (X-ray diffraction), Ultraviolet-visible (Uv-Vis) spectroscopy. Formation of spinel nano ferrire with grain diameter: 33.5 - 41.1 nm is confirmed by XRD measurements, which also shows presence of small amount of Fe2O3 phase. Increasing Co-content: a) increases x-ray density, crystallite size (range between 33.5  51.1 nm), and shows expansion of unit cell, b) shows linear increase of specific surface area, considerable variation in both strain, dislocation density, c) modifies the cationic distribution with Mg2+, Co2+, Fe3+ ions reside on both on A, B sites, and shows increase of Co2+, Fe3+ population via a simultaneous decrease of Mg2+ population at Bsite, plays a key-role in determining Néel magnetic moment, d) displays higher degree of inversion (range between 0.55 - 0.95), and reveal higher disorder due to displacement of oxygen anion, e) affects A-O-A, A-O-B, B-O-B super-exchange interaction, affecting Néel magnetic moment, f) leads to fine tuning of energy bandgap (range between 1.90 − 2.0 eV), displays exponential decay of energy bandgap with increasing crystallite size, and linear decrease of bandgap with increasing Fe3+ ions on B-site. In the studied materials, bandgap ~ 2eV suggests their potential application as a suitable material for water purification via visible- light assisted photocatalysis for organic pollutants degradation. NM-20 Comparison study of optical properties of Si nanostructures: Ion implantation and Metal Assisted Chemical Etching Gayatri Sahu1,a) 1UGC-DAE Centre for Scientific Research, University Campus, Khandwa Road Indore, Madhya Pradesh 452001, India a)Corresponding author: [email protected] A comparison study on the optical properties of Silicon nanostructures have been done. Silicon nanostructures are fabricated using two different methods: dual ion implantation and metal assisted chemical etching techniques. In the present work, we have taken Ag ion for ion implantation and Ag metal as a catalyst for etching. Optical properties of these Silicon nanostructures have been studied using different characterization techniques like Raman scattering and Photoluminescence spectroscopy. XRD measurements have been carried out to see the crystallinity of the formed Silicon nanostructures. Surface morphology of etched samples have been studied extensively using SEM images. Etching time are varied and noted down at three different time i.e. 45 minutes, 60 minutes and 75 minutes. Interesting observation in this work is that after a threshold etching time, the formed Silicon nanowires start breaking 53

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) up and with further increase in etching time, micro-etching takes place. This is evident in Raman scattering, Photoluminescence results and SEM images. Optical properties of Silicon nanostructures formed in dual ion implantation and etching method (at 45 minutes sample) shows similar behavior. The details of the above are discussed in the presentation. NM-21 ZnO Nanostructures Electrodeposited on Electrochemically Reduced Graphene Oxide Lakshmi R1,a) and Lijin George2, b) 1Department of Physics, Cochin university of Science and Technology, Cochin, 682022. 2 Centre of excellence in advanced materials, Cochin university of Science and Technology, Cochin, India, 682022 Email: [email protected] Graphene-ZnO is an interesting combination of optoelectronic materials. The two-dimensional wonder material graphene has many exceptional material properties that improve the quality of ZnO based optoelectronic devices. Single layer graphene although first discovered using the method mechanical exfoliation, graphene oxide is more suitable for large scale applications. Chemical reduction method is most popular in graphene oxide (GO) reduction, but recently discovered electrochemical reduction method having its simplicity and which is free from dealing with hazardous chemicals. In this work we electrodeposit ZnO nanostructures over electrochemically reduced graphene oxide. Electrodeposition of ZnO is also a simple and effective method of depositing different ZnO nanostructures. By combining both electrochemical methods, we are able to fabricate rGO-ZnO heterostructure. The ZnO nanostructures of different morphology can be synthesized on the same sample at different regions. This different morphologies of ZnO can be attributed to nonuniformity or partial reduction of GO. NM-22 Structural, Optical and Photocatalytic Sstudy of Sr2+ doped TiO2 Nanoparticles Anju Rani1, R. L. Dhiman2a, Virender Singh3, Suresh Kumar3 and Suresh Kumar1,4 1Department of Physics, M.M. University, Sadhopur, Ambala, Haryana- 134 007 India 2Department of Physics, Sanatan Dharma College, Ambala Cantt. Haryana- 133 001 India 3 Department of Electronic Science, Kurukshetra University, Kurukshetra, Haryana- 136 119 4Department of Physics, M.M. University, Mullana, Haryana- 133 207 India a Corresponding author : [email protected] Sr2+ doped TiO2 nanoparticles with different mole % of Strontium have been synthesized by hydrothermal method. The XRD data analysis confirms the formation mixed anatase phase of strontium doped TiO2 nanoparticles. The crystallite size vary from 35.42 nm to 25.46 nm was determined from the line broadening of (101) peak of TiO2 in X-ray diffraction spectra. The particle size decreases with increase of dopant concentration (x). The optical band gap was determined using UV-Vis absorption spectroscopy. It was found that optical band gap decreases with decrease in particle size. The formation of defect levels caused by oxygen vacancies were confirmed by Photoluminescence spectroscopy. The emission bands observed at 453, 464, 470, 483 and 494 nm in Photoluminescence spectra could be arising from surface 54

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) states appears in forbidden region of TiO2. The effect of doping on bond formation is verified by Fourier-transform-infrared spectroscopy (FTIR). The Photocatalytic activity of synthesized nanoparticles was studied by using visible light source of wavelength ranging 400 -700 nm. Congo Red and Methyl orange dyes were used as model pollutant. The Photocatalytic degradation efficiency of synthesized samples against both dyes Congo Red and Methyl orange increases with increase in dopant concentration. The increase in Photocatalytic degradation activity of synthesized nanoparticles is attributed to decrease in charge carrier recombination rate arises from decrease in energy band gap. Keywords: Nanoparticles, Photocatalytic NM-23 Degradation of Methyl Orange Using Potash Alum Doped TiO2 Nanocomposite Vaishali Mehta1, Nazilla Soleimanioun2, D.V. Roy3, S.K. Tripathi2 1D.A.V. College, Sector-10, Chandigarh-160011(INDIA)+Present Address: 1/123 Cobbora Road, Dubbo, New South Wales (2830), (AUSTRALIA) 2Department of Physics, Centre of Advanced Study in Physics, Panjab University, Chandigarh- 160014 (INDIA) 3School of Biological Engineering and Sciences, Shobhit University, Meerut (INDIA) a) Corresponding author: [email protected] TiO2 nanocomposite with metal doping of aluminium potassium sulphate (AlK(SO4)2) has been synthesized using the sol-gel technique. The characteristics of nanocomposites are investigated by X-ray diffraction (XRD) and UV-Visible spectroscopy which prominently give information about the crystalline structure and optical characteristics of the nanocomposite. It has been observed that nanocomposite has anatase phase and crystal size is in range of few nanometers. This nanocomposite has been used to check the degradation of methyl orange under 400 Watts LED lamp for 1 hour within 0 minutes, 10 minutes, 20 minutes, 40 minutes and 60 minutes. The results show that the dye is degraded to almost 15% when irradiated using a UV light for 1 hour. NM-24 55

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) Radiation Physics 56

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) RP-01 Study of Luminescence in Eu2+ Activated LiF-CaF2 & NaF-CaF2 Eutectic Systems Vartika S.Singh1,a), P.D.Belsare2,b) and S.V.Moharil, 1, c) 1 Department of Physics, RTM Nagpur University, Nagpur 440 033 2Shri Ramdeobaba college of Engineering and Management, Gittikhadan, Nagpur a) Corresponding Author: [email protected], b) [email protected], c) [email protected] Since, perovskites like LiCaF3 and NaCaF3 do not exists, there lies a eutectic point in LiF-CaF2 system at 762 °C which is considerably lower than their respective melting points of LiF and CaF2 for 77/23% molar ratios. Similarly, for NaF-CaF2 system, it exists at 818 °C for 67/33%. Preparing phosphors at such low temperatures via solid state diffusion is obviously advantageous over the conventional ways of syntheses. Hence, we are successful in obtaining Eu2+ and Ho3+ codoped CaF2 phosphors through this new technique. Though the presence of LiF in LiF-CaF2 system hindered luminescence efficiency in our samples but as prepared samples showed photoluminescence immediately after melting at eutectic temperature. To overcome reduced luminescence intensity disadvantage, we replaced LiF by NaF and investigated NaF-CaF2 system as NaF is water soluble. Results obtained are thus discussed here. Keywords: Luminescence; Eutectic; Phase-Diagram; Synthesis; Phosphors; Activators RP-02 Measurements of L X ray Intensity Ratios for 51Sb at Incident Photon Energies across its Li(i=1-3) Edge Energies Sandeep Kaur1, Vibha Ayri1, Anil Kumar1, M. Czyzycki2, A. G. Karydas3 and SanjivPuri1, a) 1Department of Basic and Applied Sciences, Punjabi University, Patiala, Punjab, India 2AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. A. Mickiewicza 30, 30-059 Krakow, Poland 2Karlsruhe Institute of Technology, Laboratory for Applications of Synchrotron Radiation, Kaiserstr. 12, 76131 Karlsruhe, Germany 3Institute of Nuclear and Particle Physics, NCSR “Demokritos”, 153 10 AghiaParaskevi, Athens, Greece a)Corresponding Author’s e-mail: [email protected] The Ll/Lα, Lβ/Lα and Lγ/Lα intensity ratios have been measured for 51Sb at different incident photon energies across its Li(i=1-3) sub-shell absorption edges in order to investigate the energy dependence of these ratios and also check the reliability of independent particle approximation (IPA) models used to calculate different physical parameters characterizing the inner shell vacancy decay processes. These measurements have been performed at XRF beam line of Elettra synchrotron, Trieste, Italy. The experimental values have been compared with the two different sets of intensity ratios calculated using the photoionization cross sections based on the relativistic Hartree-Fock-Slater model (Scofield, 1973), two sets of the fluorescence and Coster Kronig yields (Krause, 1979; Puri et al., 1993) and the X-ray emission rates based on the Dirac-Fock model ( Campbell, 1989). 57

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) RP-03 Universal behavior of helium ion induced M X-ray production cross sections Balwinder Singh1, Shehla1 and Sanjiv Puri1# 1Department of Basic and Applied Sciences, Punjabi University, Patiala, Punjab, India #Corresponding author: [email protected] Accurate and reliable data on the ion induced X-ray production cross sections (XRPCS) are required for variety of applications including radiation shielding, radiation dosimetry, material modification by ion-implantation and quantitative elemental analysis of different types of samples employing particle induced X-ray emission technique. A good number of reports on measurements of total cross sections for production of the M X-rays of different elements with Z = 59 - 92 by the 200 keV - 6.0 MeV helium ion impact are available in literature. In the present work, the available data have been compiled and plotted as function of scaling variable, ξM=2Vp/V2M.θM, where Vp and V2M [=(2EM/me)1/2; EM is average M shell binding energy] are projectile and the average M-shell electron velocities, respectively, and θM [= (9EM/Z R)]2 ; Z and R denote the screened target atomic number and the Rydberg constant, respectively, represents the average M-shell reduced binding energy. To check the reliability of theoretical models, data points are compared with theoretical M XRP cross sections for Pb calculated using helium ionization cross sections based on the ECPSSR model [1], X-ray emission rates based on Dirac-Hartree-Slater (DHS) model [2], fluorescence yields and Coster-Kronig transition probabilities based on Dirac-Hartree-Slater (DHS) model [3]. Reference: 1. Z. Liu, S. Cipolla, Comput. Phys. Commun. 97, 315 (1996), 176, 157 (2007); 180, 1716 (2009); 182, 2439 (2011) 2. S. Puri, At. Data Nucl. Data Tables93, 730(2007) 3. Y. Chauhan, S. Puri, At. Data Nucl. Data Tables 94, 38 (2008) RP-04 Measurements of L X-Ray Intensity Ratios for 75Re at Incident Photon Energies across its Li (i=1-3) Edge Energies. Vibha Ayri1, Sandeep Kaur1, Anil Kumar1, M. Czyzycki2,3, A.G. Karydas4 and Sanjiv Puri1,a) 1Department of Basic and Applied Sciences, Punjabi University, Patiala, Punjab, India 2 Karlsruhe Institute of Technology, Laboratory for Applications of Synchrotron Radiation, Kaiserstr. 12, 76131 Karlsruhe, Germany 3AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, al. A. Mickiewicza 30, 30-059 Krakow, Poland 4Institute of Nuclear and Particle Physics, NCSR “Demokritos”, 153 10 Agia Paraskevi, Athens, Greece a) Corresponding author: [email protected] 58

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) The L x-ray intensity ratios, ILk/ILα (k = l, β, γ), for 75Re have been measured at some incident photon energies across its Li (i = 1-3) sub-shell absorption edge energies. These measurements aim to investigate the energy dependence of these intensity ratios and also check the reliability of the independent particle approximation models used to calculate different theoretical physical parameters required to evaluate the intensity ratios, namely, the photoionization cross sections, X-ray emission rates, fluorescence and Coster-Kronig yields. These measurements have been performed at the XRF beam line of Elettra[1], Trieste, Italy. The present measured intensity ratios have been compared with two sets of values calculated using the Hartree-Fock- Slater model based photoionization cross-sections[2], the Dirac-Fock model based X-ray emission rates[3] and two sets of fluorescence and Coster-Kronig yields based on the semi- empirical[4] and the DHS[5] models, respectively. Reference 1. A.G. Karydas, et al., J. Synchroton Rad., 25(1), 189-203, (2018). 2. J. H. Scofield, Lawrence Livermore Laboratory Report No UCRL 51326, 1-374, (1973). 3. J.L Campbell and J.X. Wang, At. Data and Nucl. Data Tables, 43, 281-291 (1989). 4. M.O. Krause, J. Phys. Chem. Ref. Data, 8(2) 307-327 (1979). 5. S. Puri, et al., X-Ray Spectrom., 22, 358-361 (1993). RP-05 An Experimental Study of 93Nb Ion Ranges in Makrofol-E Detector Dipangkar Kalita1,a), Raju Kalita1,Yubaraj Sharma2 and Atul Saxena1 1Department of Physics, North-Eastern Hill University, Meghalaya, Shillong-793022 2Department of Physics, Don Bosco College, Tura, Meghalaya, Tura-794002 a)Corresponding author: [email protected] Solid State Nuclear Track Detectors (SSNTDs) basically detect the passage of heavy ions through them and have many applications in science and technology, among which includes measurement of range and energy loss of ions in matter [3,4]. Accurate measurements of range provide helpful information that can be used for particle identification, development of micro- filters etc. In the present study Makrofol-E detectors were exposed to a well-collimated beam of 93Nb ion in the energy range 7.7 to 18.04 MeV/u at 45° angle with a fluence of ~ 104 ions/cm2 at the UNILAC, GSI, Darmstadt (Germany). The irradiated samples were etched in 6N NaOH solution at constant temperature 60±0.5 ℃ for a period of 2-3 hours till rounded track tips were observed. All measurements of track geometry were done using a camera fitted transmitted light trinocular microscope at magnifications of 150X and 600X. From the observed track parameters, the maximum etchable true track lengths are obtained using the formula given by Dwivedi and Mukherji [5]. Due to the high sensitivity and high registration efficiency of Makrofol-E and taking into account the accuracy of the measurements and the ion energies, the maximum etchable true track lengths were taken as the experimental ranges; this measurement techniques is called the track etch technique. The experimentally determined ranges are then compared with various semiempirical codes like SRIM-2013, DEDXT, LISE++: 0-[Hub 90], LISE++: 1-[Zie], LISE++: 2-ATIMA1.2 (LS Theory), LISE++: 3- ATIMA1.2 (Without LS Theory) in order to assess their validity. 59

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) RP-06 Estimation of Natural Background Gamma Radiation Dose in the Environs of Uranium Mineralized Area: A Case Study at Megavath Thanda, Nalgonda District, Telangana State, India G. Suman1, K. Vinay Kumar Reddy2, M. Sreenath Reddy1, a), Ch. Gopal Reddy1 and P. Yadagiri Reddy1 1Department of Physics, Osmania University, Hyderabad – 500 007, India 2Department of Physics, Chaitanya Bharathi Institute of Technology, Hyderabad-500075, India a) Corresponding author: [email protected] The ambient gamma radiation levels were measured in the village Meghavath Thanda, in the vicinity of proposed uranium mining site, with active and passive techniques. The estimated average absorbed dose rate varied from 1818 to 2296 µGy.y-1 with an average value 2105 ± 142 µGy.y-1. The radioactive elemental analysis from the collected soil samples of the area shows that the activity of 238U and 232Th is higher than the global average and associated index parameters are well within the limits. The annual effective dose rate due to gamma radiation is found to be 1.47 ± 0.10 mSv.y-1. Keywords: gamma radiation, radionuclides, absorbed dose, effective dose, uranium RP-07 Ambient Natural Gamma Radiation Dose Measurement in Devarakonda Town, Nalgonda district, India M. Srinivas Reddy2, G. Suman1, K. Vinay Kumar Reddy3, M. Sreenath Reddy1, a), Ch. Gopal Reddy1 and P. Yadagiri Reddy1 1Department of Physics, Osmania University, Hyderabad – 500 007, India 2 Nagarjuna Government College, Nalgonda -508001, Telangana State, India 3.Department of Physics, Chaitanya Bharathi Institute of Technology, Hyderabad - 500075, India a) Corresponding author: [email protected] The indoor and outdoor natural background gamma radiation levels were estimated at Devarakonda town with ������R-survey meter and TLDs. It is observed that the measured average gamma radiation absorbed dose rate in the indoor and outdoor is 2240 ± 535 µGy y-1 and 2178 ± 288 µGy y-1, respectively and this dose rate is about three times higher than the national average. The frequency distribution of gamma radiation levels gave a conjecture that the gamma radiation levels in the study area deviating from normal distribution. An attempt has been made to understand the causative factor for gamma radiation levels in the dwellings and also calculated effective dose rate to the residents of the town. Key words: Gamma radiation; ionizing radiation; absorbed dose; effective dose; Thermoluminescence RP-08 Thoron studies in dwellings of certain northern districts of Telangana State, India 60

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) G. Srinivas Reddy2, K. Vinay Kumar Reddy3, B. Sreenivasa Reddy3, B. Linga Reddy3, M. Sreenath Reddy1.a), Ch. Gopal Reddy1 and P. Yadagiri Reddy1 1Department of Physics, Osmania University, Hyderabad-500007, India 2Department of Physics and Chemistry, Mahatma Gandhi Institute of Technology, Hyderabad – 500 075, India 3Deprtment of Physics, Chaitanya Bharathi Institute of Technology, Hyderabad-500075, India a) Corresponding author: [email protected] Indoor thoron activity concentration in four districts viz., Karimnagar, Peddapalli, Jagtial and Rajanna Sircilla of Telangana state have been estimated with solid state nuclear track detector based twin chamber cup dosimeters. The measured tthoron concentrations in four districts were found to be varied from below detection limit (3 Bq.m-3) to 556 Bq.m-3. The distribution of thoron activity concentration is observed to be log-normal. The seasonal variation study of the thoron activity shows that it is moderately higher in the winter. Variation of thoron concentration in dwellings with type of building materials is also studied. Keywords: Thoron; log-normal; SSNTDs; radioactivity; twin chamber cup dosimeter RP-09 Impact of Shell Corrections on Fragment Mass Distribution of Medium and Heavy Mass Compound Nuclei Sarbjeet Kaura), Manjot Kaur and BirBikram Singhb) Department of Physics, Sri Guru Granth Sahib World University, Fatehgarh Sahib-140406, India Email: a) [email protected], b)[email protected] The investigations of the fragmentation mass distributions have been made in order to emphasize the importance of the shell corrections (δU) in the decay of compound nuclei. The decay of medium and heavy mass compound nuclei 124Ce* and 246Bk* formed in 32S + 92Mo and 11B + 235U reactions, respectively, had been studied within the formalism of Dynamical Cluster Decay model. In the present study, the importance of δU is explored due to the availability of the separate contributions of liquid drop part (VLDM) and δU in the binding energies defined by Strutinsky renormalization procedure. The results shows that in medium mass compound nucleus 124Ce* the effect of δU above vanishing temperature (T = 1.5 MeV) are very minute and the change becomes noticeable in the decay of heavy mass 246Bk* at temperature below the vanishing limit. The investigations show that the fragmentation potential and preformation probability contains the nuclear structure information of the nuclear system and its decaying fragments, which depend significantly on the δU values particularly at the temperature values below the vanishing limit. RP-10 Investigation of Role of Entrance Channel Mass Asymmetry on Fusion Fission Dynamics 61

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) Rupinder Kaur1,a), Maninder Kaur2, b), Varinderjit Singh2 and Santanu Pal 3 1Department of Physics, Punjabi University,Patiala-147002, INDIA 2 Department of Physical Sciences, I.K.G Punjab Technical University, Kapurthala- 144603, 3CS – 6/1, Golf Green, Kolkata–700095, INDIA (Formerly with VECC, Kolkata) Email: a) [email protected], b)[email protected] The fusion-fission process has been stimulating the interests of nuclear physicist from several years and still the understanding of dynamics of fusion-fission process is an active field of research. A number of attempts have been made in the past few decades to estimate the strength of nuclear dissipation in fusion-fission dynamics. Various probes are used to carry out these measurements such as neutron multiplicity, charged particles multiplicity, evaporation residue cross-section etc. In the present work the effect of entrance channel has been studied in reactions 12C + 204Pb and 19F + 197Au populating same compound nucleus 216Ra using statistical model (SM) VECSTAT by simultaneously explaining both neutron multiplicities and fission\\evaporation residue cross-sections by separately taking in account the reduced dissipation coefficient sensitive from equilibrium to saddle (βgs) and saddle to scission (βss) regime. The work shows that smaller βgs values are required to explain fission\\evaporation residue cross-sections and larger βss values are required to explain neutron multiplicities and for consistent SM analysis fission\\evaporation residue cross-sections are more appropriate tools to investigate entrance channel effects rather than neutron multiplicities. RP-11 Monte Carlo Simulation Study for Proton Therapy at Energy Range 62 MeV – 240 MeV using GEANT4 Nitika Sangwan1, a) and Ashavani Kumar1, b) 1Department of Physics, National Institute of Technology, Kurukshetra-136119 (India) b) Corresponding author: [email protected], a) [email protected] Hadrontherapy deals with the maximum energy deposition in the form of Bragg peak for energetic charged particles at a particular depth for killing cancerous cells. For planning hadrontherapy treatment accuracy in transport codes are primary demands of radiation oncology. In this work, we studied the dose deposition of the proton beam for the energy range of clinical interest i.e. 70 MeV to 240 MeV in water considering as tissue-equivalent material. The Bragg peak studies for different energy values are executed using Monte Carlo codes- based toolkit- GEANT4. We compared the four physics lists, the QGSP_BERT, the QBBC, the PhysListEmStandardNR (StandardNR), and emstandard_opt0, present in the Geant4 toolkit for avoiding uncertainty in the determination of dose deposition in the living cells which may cause damage of healthy cells. The StandardNR physics list is found suitable to get localized dose deposition in the form of smooth Bragg Curve. RP-12 Influence of Wave Function on Proton Induced M XRP Cross Sections for 71Lu and 80Hg Balwinder Singh1, Anil Kumar1 and Sanjiv Puri1# 62

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) 1Department of Basic and Applied Sciences, Punjabi University, Patiala, Punjab, India # Corresponding author: [email protected] The cross sections for production of the Mk(k= , δ, α, β, , , m1, m2) X-rays induced by 0.06 - 2 MeV protons have been calculated for 71Lu and 80Hg using the fundamental physical parameters, namely, the Mi (i=1-5) sub-shell X-ray emission rates based on the Dirac-Hartree- Slater (DHS) model [1], the fluorescence and Coster Kronig yields based on the DHS model [2] and two sets [3,4] of the proton ionization cross sections based on the DHS model and the ECPSSR model in order to investigate the influence of the wave function on these cross sections. The two sets of calculated cross sections have also been compared with the measured cross sections reported in the literature [5]. Reference: 1. S. Puri, At. DataNucl.DataTables93, 730(2007) 2. Y.Chauhan, S. Puri, At. Data Nucl. Data Tables 94, 38 (2008) 3. M. H. Chen, B. Crasemann, At. Data Nucl. Data Tables 41, 257(1989) 4. Z. Liu, S. Cipolla, Comput. Phys. Commun. 97, 315 (1996), 176, 157 (2007); 180, 1716 (2009); 182, 2439 (2011) 5. B. Deghfel et. al., Rad. Phys. and Chem. 92, 32 (2013). RP-13 A Model to Measure the Occupation Factors Associated Rural and Urban Dwellers of Davangere, India Dr Manjunatha S Retired Physics Professor Email: [email protected] In most environmental gamma radiation studies, default occupancy factors for gamma radiation are taken as 0.2 for outdoor and 0.8 as indoor as recommended by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) for effective dose estimation has been used. However, these figures may not adequately represent the rural situation. The present paper offers a model to measure the local occupancy factors, set by UNSCEAR for rural and urban environments, apply to a typical tropical station at Davangere in Karnataka, India based on statistical data. . A survey has been conducted with a questionnaire indicated time spent for various activities in a day amongst the different group of occupants. For rural dwellers the occupation factor were 0.38 for outdoor and 0.62 for indoor; and for urban dwellers the same factor were 0.26 for outdoor and 0.73 for indoor. The rural outdoor factor found slightly deviate from the UNSCEAR recommendation. Key words: Occupation factor, time budget, radiation dose RP-14 Study of Energy Shift in Lγ1 X-ray Emission Lines of Thallium Complexes Harpreet Singh Kainth1, a), Sanjiv Puri1 and Deeksha Khandewal2 1Department of Basic and Applied Science, Punjabi University Patiala-147002, India 2Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi-110067, India a)Corresponding author: [email protected] 63

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) In the present study, we have examined the energy shift in Lγ1 X-ray lines of distinct Thallium complexes by using conventional wavelength dispersive spectrometer. Present results show that the Lγ1 X-ray lines emitted from various Thallium targets show energy shift ~ (0.41-4.49) eV relative to the pure Thallium target. The abruptly deviating peak profile changes observed in various Thallium based metal-complexes can be imitated in terms of the linewidth, different electronegativity values of adjacent ligands, effective charge and changes in crystal structure and mixed valence state changes of Thallium complexes. In addition, the possible connection among Lγ1 X-ray peak energy shift and parameters affecting these are systematically studied. RP-15 Program BUF: A Computer Toolkit for Primary Investigations of Buildup Factors in Single and Multilayer Shields Nisha Raj1, a) and Chitra Bhukkal2 1Physics Department, Government College, Barwala, Panchkula, Haryana-134 118, INDIA 2Physics Department, Government College, Adampur, Hisar, Haryana-125 052, INDIA a)Corresponding author: [email protected] The buildup factors play a central role in radiation shielding studies for designing of a shield to reduce the intensity of radiations reaching out to any object or at point of observation. In order to meet out the most of practical shielding requirements of buildup factors, it becomes crucial to find a generalized toolkit applicable for multi-layer shields. The Taylor’s approximation has been widely studied for radiation shielding calculations and it is observed that this approximation is accurate enough to evaluate buildup factor data for elements and compounds composing single-layered shields. In this study, the Taylor’s formula is attempted for estimation of buildup factors for multi-layered shields. Numerical calculations have been performed by developing a program source code employing this fitting approximation and the computation is able to reproduce buildup factors data for single-layer shields. Moreover, results for two- layered, three-layered, four-layered and five-layered are also seen to be produced numerically. The program calculates buildup factors in the energy range of 0.5 MeV-10 MeV for shields having effective atomic number lying between 10 and 92. Wherever possible, the validity of the developed source code is tested by comparing outputs with available results in literature. RP-16 Fusion mechanism of 12C + 232Th system at sub-barrier energy realm Vijay1#, Manjeet Singh Gautam2, Rishi Pal Chahal1, Sukhvinder Duhan3 and Hitender Khatri4 1Department of Physics, Chaudhary Bansi Lal University, Bhiwani (Haryana)-127021, India 2Department of Physics, Government College Alewa, Jind (Haryana)- 126102, India 3Department of Applied Sciences and Humanities, Seth Jai Parkash Mukand Lal Institute of Engineering and Technology, Radaur, Yamunanagar (Haryana)-135133, India, and 4Department of Physics, Pt. Neki Ram Sharma Government College, Rohtak (Haryana)- 124001, India Email: #[email protected], †[email protected] The fusion-fission dynamics of 12C + 232Th reaction at energies in sub-barrier realm are analyzed by using one-dimensional Wong formula and symmetric-asymmetric Gaussian barrier distribution (SAGBD) model. For this, we examined the fusion cross-sections data and 64

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) related barrier distribution. Calculations based on simple Wong formula fails to explain the fusion data specially at below barrier energies, while SAGBD model predictions qualitatively as well as quantitively reproduced the fusion dynamics of studied reaction. The effects of coupling in SAGBD model are calculated in terms of channel coupling parameter λ, which point towards the reduction of height of the effective fusion barrier and consequently recovered large enhancement in fusion cross-sections in comparison with estimations obtained by using the Wong formula. Furthermore, the percentage reduction of the nominal fusion barrier due to involvement of nuclear structure effects, is described in terms of VCBRED. For the studied system, ������2-analysis shows small value for the SAGBD based results and hence clearly indicates the consistency of the present approach. Keywords: Wong formula, Sub-barrier fusion, Barrier distribution, Woods-Saxon potential. RP-17 Structural Study Of Stable (4He) And Halo (6He, 8He) Helium Isotopes Using Skyrme Pairing Force-SKP Modified SKM* And SLy4 Functionals Sukhvinder Duhan1a, Manjeet Singh Gautam2, Hitender Khatri3, Rishipal Chahal4 1 Department of Applied Sciences and Humanities, Seth Jai Parkash Mukand Lal Institute of Engineering and Technology, Radaur, Yamunanagar, Haryana-135133, India 2 Department of Physics, Government College Alewa, Jind, Haryana-126102, India 3 Department of Physics, Pt. Neki Ram Sharma Government College, Rohtak, Haryana Department of Physics, Chaudhary Bansi Lal University, Bhiwani, Haryana-127021, India a)Corresponding author: [email protected] In this work, Nuclear Energy Density Functional Theory (NEDFT) has been used to investigate the various structural properties of stable and weakly bound and/or Halo structure nuclei. The different Skyrme interactions like SKM*, SKP Sly4 are utilized to study the structural properties of 4He, 6He and 8He nuclei. Further all the density functionals predict approximately similar behavious for these nuclei and the calculations based on adopted Skyrme interactions indicate that 6He and 8He nuclei exhibits neutron halo structure. Keywords: Weakly bound nuclei, Halo nuclei, Skyrme force, Desnsity Functional Theory RP-18 Investigation of the Effect of Temperature on Binding Energy of Nuclei Arshdeep Kaur, Manpreet Kaur, Sarbjeet Kaur and BirBikram Singha) Department of Physics, Sri Guru Granth Sahib World University, Fatehgarh Sahib-140406 a)Corresponding author: [email protected] Within the Strutinsky renormalization procedure temperature dependence of binding energies of nuclei has been observed, where the binding energy comprises of the macroscopic and microscopic part i.e. the liquid drop energy VLDM and the shell correction (δU), respectively. It is observed that δU (particularly at energies ≤ 1.5 MeV) along with the VLDM plays a crucial role to give proper understanding of the nuclear reaction dynamics at the given temperatures of the composite nuclei formed in the low energy heavy ion collisions, within the dynamical cluster decay model of Gupta and Collaborators. We observe that effect of temperature on various binding energy terms of the formula is varied at different temperatures (0 - 4 MeV). This variation is guided by the temperature dependence of various energy coefficients obtained 65

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) by Davidson et. al., which eventually affects the binding energy per nucleon (B.E./A) curve quite significantly. We find that values of B.E./A show consistent increasing trend up to T = 1 MeV, attributing it to the peculiar behavior of the surface energy term, and for higher temperature (say 2 - 4 MeV), it is showing downward trend particularly for nuclei with A ~ 10- 150. While for heavier nuclei, the values of B.E./A start increasing beyond T = 2 MeV, due to the asymmetry energy term. RP-19 Dynamics of competing α and cluster radioactive decays within the collective clusterization approach Rajwinder Kaur, Sarbjeet Kaur, Manpreet Kaur and BirBikram Singha) Department of Physics, Sri Guru Granth Sahib World University, Fatehgarh Sahib-140406. a)Corresponding author: [email protected] The purpose of this work is to study the dynamics of competing α and 208Pb daughter cluster radioactive decays using the preformed cluster decay model (PCM), within the collective clusterization approach of Quantum Mechanical Fragmentation Theory (QMFT). The QMFT based fragmentation potential comprises of binding energy (B.E) (which is the sum of liquid drop energy (VLDM), based on semi empirical mass formula of Seeger and shell corrections (������������) given by Myers and Swiatecki), Coulomb potential (VC) and nuclear proximity potential (VP) of the cluster and daughter nuclei in the ground state decay of the radioactive parent nuclei. To explore the competing aspects of α and 208Pb daughter cluster radioactivities, we have chosen 222Ra, 226Th, 228Th, 231Pa, 230U and 232U parent nuclei. The crucial role played by shell closure effects is demonstrated in minimized values of fragmentation potential for cluster accompanied by doubly-magic 208Pb daughter nucleus in comparison to neighboring fragments. The higher values of preformation probabilities, P0 of these clusters further reveal significance of nuclear structure in the cluster radioactivity process. We have calculated the half-lives via fragmentation potential, preformation probability, scattering potential for spherical case, of chosen nuclei, and then compared with the given experimental data. From the comparison of α cluster and 208Pb daughter decays, we see that the former is heavily dominating with larger values of P0 in comparison to the later as evident from the experimentally observed high count rate of α cluster in such decays. However, the penetrability for both types of decays is almost similar. The experimental data and PCM calculated results are in fair comparison for all the chosen cases. RP-20 66

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) General Section 67

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) GS-01 A Family of Derivative-Free Methods For Solving Nonlinear Equations Originating From Real Life Problems Sunil Kumara) and Janak Raj Sharmab) Department of Mathematics, Sant Longowal Institute of Engineering and Technology, Longowal, Punjab 148106, India Email: a) [email protected], b)[email protected] We propose a two-parameter derivative-free family of methods with memory of order 1.84 for finding the real roots of nonlinear equations. The new methods require only one function evaluation per iteration, so efficiency index is also 1.84. The process is carried out by approximating the derivative in Newton's iteration using general quadratic equation a x2+ b y2+c x+d y + e = 0 in the terms of coefficients a, b. Various option of a, b correspond to various quadratic forms. The application of new methods is validated on Kepler's problem, Isentropic supersonic flow problem, L-C-R circuit problem and Population growth problem. In addition, to check the consistency of new methods, a comparison of its performance with existing methods of same nature is also presented. GS-02 Time in Forward Direction is Associated with Matters Only Whereas Time in Reverse Direction is Associated with Anti – Matters: The Time Reverses it’s Direction at Either Side of the Speed of Light. Prasenjit Debnath1,a) 1PhD student, The Department of Physics, National Institute of Technology Agartala, Barjala, Jirania, PO – NIT Agartala, District – Tripura (West), State – Tripura, India, Pin – 799046 Email: a)[email protected] The physical time is the most mysterious element in the Universe. We can feel it but cannot touch it. We are all the functions of it but not sure that the physical time is also a function of us or not. Many attempted for a good model of the physical time without much success. There are many theories of the physical time overtime. The most successful theory on the physical time is the Theory of general relativity which concluded that space – time is a curvature. In 1915, Albert Einstein postulated the theory of general relativity which is the updated and modified version of the theory of Special Relativity (postulated in 1905) to incorporate the gravity in it. Although the theory of general relativity is the leading theory in theoretical physics, unfortunately it can only describe macrocosm of the Universe without any proper link to the microcosm of the Universe with respect to the properties of the space-time. Although the theory can measure the macroscopic universe fairly accurately, but the “true / real nature” of the space – time is still remarkably vague till date. In this paper, I will show that past, present and future all have the same temporal properties. I will also show that how knowledge or information makes the difference among past, present and future. GS-03 Moment of Inertia of Generalized Magic Cubes 68

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) Narbda Rani1, a) and Vinod Mishra2, b) 1, 2 Department of Mathematics Sant Longowal Institute of Engineering and Technology, Longowal (Punjab), India. a) Corresponding author: [email protected], b) [email protected] In this article the method for the construction of odd order magic cubes is introduced. The moment of inertia of a magic cube is evaluated by showing the case of a special kind of third order magic cube and interpreting them as a rigid body mass distribution. The moment of inertia depends only on the semi-magic property and the number of point masses along each n-tuple of elements having the same co-ordinates on two places. The moment of inertia is calculated by changing the position of the origin of the co-ordinate system and the axis of rotation. Next, the concept of center of mass is explained for magic cubes. GS-04 The Cosmological Model of Universe: A Review Puneet Kumar Deshwal a), Garima b) and Dr. Manikant Yadav c) J.C. Bose University of Science & Technology, YMCA, Faridabad, Haryana a) Corresponding author: [email protected], b) [email protected], c) [email protected] The Cosmology is the study of the universe as a whole on the largest possible scales of distance and time instead of studying them individually as stars, planets, galaxies etc. In this paper, we will discuss some initial findings towards the geometry and expansion of the universe obtained by the statistical observation of Christian Doppler and Edwin Hubble. And we will consider the cosmological principle to study the strongly philosophical statement that for all the observers throughout the space every physical law is the same as viewed on a sufficiently large scale. Further, it isn't sufficient to watch the galactic movements; one ought to apply the laws of physics to explain them. So, it’ll be shown how Newtonian picture of expansion came with the mathematical model and later how general relativity actually explained the expansion of our cosmos overcoming the shortcomings of Newtonian theory. We will also have an overview on some initial models such as the Newtonian model and the Friedman-Lemaitre model which roots our basic abstraction and geometry and some important terminologies which are important to study our vast expanding universe. There are some very simple yet important questions raised by cosmology such as: is the Universe static or expanding? How old is it and what will be its future evolution? Is it flat, open or closed? Of what type of matter is it composed? How did structures like galaxies form? After having our basic understanding of the universe we will try to answer some of these questions. Keywords: Cosmos, Galactic movement, Statistical observation, Universe, Expansion, Newtonian, Geometry GS-05 Introduction of Quark-Gluon Plasma: A Review Garima a, Puneet Kumar Deshwalb and Dr. Manikant Yadavc J.C. Bose University of Science & Technology, YMCA, Faridabad, Haryana 69

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) Email: [email protected], [email protected], [email protected] This paper discusses the elementary introduction to the physics of quark-gluon plasma. When two Heavy-ions are collided at RHIC and LHC, an extreme interplay between the quarks is seen when the energy is low, although at high-energy coupling decreases and the quarks get deconfined, resulting in the formation of Quark-Gluon Plasma. The new formed QGP, is considered a perfect fluid with extremely small viscosity. We will describe the fundamental physics behind the Heavy-ion collision and will try to answer questions like, how it produces the sub-nuclear particle? Which nucleon takes part in collision and which does not? What are the properties of this new formed particle? And How can we detect them? As answering without explanation is not considered the right fuel for inquisitiveness, so starting with quantum chromodynamics we majorly focused on the theoretical viewpoint of nuclear matter formed at high temperature and pressure. Then moving forward, we explain what is QGP and how and when hadron dissolve to liberate quarks and gluons. The processes involved in heavy- ion collisions are described briefly. At the end, considering the evidences like Strangeness Enhancement, Elliptical Flow, Jet Quenching, J/ψ melting, HBT effect and Particle spectra supporting production of QGP, the outcomes and properties of this new state of matter are enlisted. Keywords. Heavy-ion Collision, Quark-Gluon Plasma, Quarks, Gluons, Quantum Chromodynamics, Probes GS-06 Seasonal Variations of Lightning Activity over Uttar Pradesh during 1998 M.C. Rao1,a), N.Umakanth2, T. Satyanarayana3 and B.T.P. Madhav4 1Department of Physics, Andhra Loyola College, Vijayawada- 520008, India 2Department of Atmospheric Science, Koneru Lakshmaiah Education Foundation, Guntur- 522502, India 3Department of ECE, Lakireddy Bali Reddy College of Engineering, Mylavaram–521230, India 4LCRC-R&D, Department of ECE, Koneru Lakshmaiah Education Foundation, Vaddeswaram–522502, India a)Corresponding author: [email protected] In this work, we have explored the variations of different parameters that influence the lightning activity over Uttar Pradesh (UP) during 1998. The parameters which we have used for studying the lightning activity are wind speed, total precipitable water (TPW) and humidity index (HI). Humidity parameter is mainly utilized for estimating the evolution of convective systems which leads to lightning, rainfall and severe weather conditions. ERA5 satellite data products are utilized in our work. The occurrence of lightning strikes takes place as a result of convective activity. Records indicate that 250 people are found to be dead alone in 1998 year as a result of lightning. Uttar Pradesh state is frequently affected by westerly winds. This state is highly prone to lightning and severe rainfall activity. The HI parameter showed low values during convective activity. Total precipitable water also indicated the high humidity at various levels in atmosphere. Therefore, this research indicates the risk of convective system. Keywords: Lightning, Total precipitable water, Humidity, Wind speed 70

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) GS-07 Study of Air Pollutants on few Stations over Karnataka State, India S. S. S. Kalyan1, N.Umakanth2, M. Seshu Kumar3, Y. Dasaradhudu4 and M.C. Rao5,a) 1Department of ECE, Koneru Lakshmaiah Education Foundation, Vaddeswaram–522502 2Department of Atmospheric Science, Koneru Lakshmaiah Education Foundation, Guntur- 522502, India 3Department of Physics, Sri Sadhana Degree College, Markapuram-523316, India 4Department of Physics, S.V. Arts College, Tirupati-517502, India 5Department of Physics, Andhra Loyola College, Vijayawada- 520008, India a)Corresponding author: [email protected] The air pollution over Bangalore and Mysore cities of Karnataka state has been increasing in recent years due to the increase in population and growth in economic activity. The present study is carried out for four different stations. They are K. R. circle (Bangalore), Graphite India (Bangalore), AMCO batteries (Bangalore) and Karnataka state board pollution control board (KSPCB Building, Mysore). The study mainly concentrates daily variation over these stations during January to December 2015. We have also attempted the prediction of PM10 using Artificial Neural Network (ANN) over Graphite India station as PM10 concentrations were higher at that station than other places. Keywords: Particulate matter, SO2, NO2, PM10, Station GS-08 Study of Rainfall over Patna Region, India during 2013 N.Umakanth1, T. Satyanarayana2, B.T.P. Madhav3 and M.C. Rao4,a) 1Department of Atmospheric Science, Koneru Lakshmaiah Education Foundation, Guntur- 522502, India 2Department of ECE, Lakireddy Bali Reddy College of Engineering, Mylavaram–521230 3LCRC-R&D, Department of ECE, Koneru Lakshmaiah Education Foundation, Vaddeswaram–522502, India 4Department of Physics, Andhra Loyola College, Vijayawada- 520008, India a)Corresponding author: [email protected] Bihar region receives good rainfall during pre-monsoon season. Winds also influence the occurrence of rainfall. During monsoon season, the south-westerly winds lead to heavy rainfall. In few occasions, strong winds are also seen causing huge destruction over Bihar. Therefore, this work studied the temporal variations of rainfall and wind in monsoon months. These rainfall occurrence days has been divided into wet days, rainfall days and heavy days during 2013 over Patna region in Bihar state. Indian Meteorological Department (IMD) daily rainfall dataset has been utilized for our work. We have utilized Era-Interim reanalysis satellite data products for our research. Bihar state is frequently affected to westerly winds. This state is highly prone to thunderstorms and severe rainfall. We have also studied parameters like rainfall, temperature, wind speed, total precipitable water (TPW) and relative humidity over Patna region during 2013. Therefore, this research indicates the risk of heavy rainfall events and warns us to plan some precautions prior to their occurrence. Keywords: Rainfall, Days, Temperature, Humidity, Wind speed, Monsoon 71

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) GS-09 Propagation of nonlinear electron acoustic solitons in magnetized dense plasma with quantum effects of degenerate electrons Neelam Rani1, a) and Manikant Yadav2, b) 1, 2 Department of Physics, J. C. Bose University of Science and Technology, YMCA, Faridabad, Haryana, 121006 a) Corresponding Author: [email protected], b)[email protected] The nonlinear electron-acoustic solitons are investigated in magnetized dense plasma with quantum effects of degenerate electrons in this model. . After reviewing the basic introduction of quantum plasma, we describe the nonlinear phenomenon of electron acoustic wave. The reductive perturbation technique is employed for derive Zakharov-Kuznetsov (ZK) equation for the propagation of quantum acoustic waves in magnetized dense plasma. In this paper, we have derived the Zakharov-Kuznetsov (ZK) equation of electron-acoustic solitons in a magnetized quantum plasma with degenerate electrons having arbitrary electron temperature. In this study, we observed that the relativistic effects, the ratio of the cold to hot electron (inertial and inertia less) unperturbed number density and the normalized magnetic field influence the solitary structures. Keywords: Electron acoustic wave (EAW), Quantum Plasma, Zakharov-Kuznetsov (ZK) equation GS-10 Generation of Higher Order Nonclassicality in Pump Mode in Seven Wave Mixing Nonlinear Optical Process Priyanka 1, a) and Savita Gill 2, b) 1, 2 (Department of Applied Science,University Institute of Engineering and Technology, Kurukshetra, 136119, India) Kurukshetra University Kurukshetra.Kurukshetra-136119,India a) [email protected], b) Corresponding author:[email protected] Higher order non-classical properties in seven wave mixing nonlinear optical process involving pump photons of different frequencies has been studied. It is shown that nonclassicality increases as we go towards the higher order of field amplitude and with increase in number of photons present in the system prior to interaction in nonlinear medium. Further we have also obtained higher order anti-bunching of photons that can be used as criteria of obtaining single photon source that is the primary requirement for quantum information processing. GS-11 Dynamics of Bianchi Type-I Universe in Brans-Dicke Gravity Heena Dua1,a) and R.K. Mishra2, b) 1,2 Department of Mathematics Sant Longowal Institute of Engineering and Technology, Longowal-148106, Punjab 72

5th National e-Conference on Advanced Materials and Radiation Physics(AMRP-2020) Email: a)[email protected], b [email protected] This study investigates Bianchi type-I cosmological model in Brans-Dicke theory of gravity. The present accelerated expansion of the universe has been described using bilinear varying deceleration parameter, q   t ; with  and  as positive constants (Mishra et al. in 1t Astrophys. Space Sci. 361:259, 2016). We obtain an exact solution of the field equations in modified gravity. The derived cosmological model starts evolving from an initial Big-Bang singularity and is shown to expand continuously with the passage of cosmic time. Some physical and geometrical properties of the universe are also discussed. The evolution of energy conditions and statefinder pair is examined graphically. The findings are observed to be in good agreement with the recent observational data reported in literature. Keywords: bilinear varying deceleration parameter, cosmological model, modified gravity GS-12 Ash Characteristics of Pine Needles After Combustion in Fluidized Bed Vishal Sharma1,a) and Kanchan Sharma2,b) 1 Department of Mechanical Engineering, Chitkara University Institute of Engineering & Technology, Rajpura, Punjab,140401, India 2 Department of Physics and Materials Science, Jaypee University of Information Technology, Waknaghat, Solan, Himachal Pradesh, 173234, India a)Corresponding author: [email protected], b)[email protected] The pine needle ash characteristics are investigated for the first time resulting from the lab scale fluidized bed reactor. This paper provides the edge and in-depth knowledge of ash characteristics during combustion through its composition. The results revealed that the composition of ash is independent of bed temperature. No agglomeration was observed at considered operating temperature range between 700°C to 880°C. Ash fusion temperature analysis reveals the melting temperature of pine needles ashes in temperature range of 1255°C -1298°C. GS-13 73