School of Natural Sciences
Department of Physics

Profile of Faculty

 Dr. Bhupendra Singh

 

Assistant Professor
Department of Physics

Cell:- 9415990987
E-mail : bhupendra.singh@cuj.ac.in, 2810bs@gmail.com

Educational Qualification:  

Ph.D.      Banaras Hindu University           2019

Title of thesis: “Studies of characteristic- and bremsstrahlung radiations emitted from some thick targets by impact of keV electrons”

M.Sc.       Banaras Hindu University           2014           
Awards/ Recognition:  
  • Awarded CSIR/UGC Junior Research Fellowship (JRF) 2015
  • Qualified Graduate Aptitude Test in Engineering (GATE) 2014
  • Qualified Joint Entrance Screening Test (JEST) 2014
Areas of Interest   Atomic and Molecular Collision Physics
Courses Taught:  

Numerical Analysis & Programming, Classical Physics & Relativity, Space Physics
Additional Role/ Responsibility:  
  1. Member, Board of Studies of Department of Physics for a term of three years starting from 2nd November 2020
  2. Member of Departmental Academic Purchase Committee
  3. Member of Departmental Admission Committee (DAC) 2020
Brief introduction:  

My research interest is basically focused on the instrumentation and experimental development in the field of atomic and molecular collision physics that includes X-ray spectroscopy, electron backscattering, multiple ionization process, and Auger spectroscopy. Fabrication of a Time-of-Flight mass spectrometer with position sensitive capability and various types of energy resolved electron spectrometers like Velocity map imaging and magnetic bottle spectrometer are the prime objectives of my current and future research work. Our work has very important applications in many areas of science and technology, for example, astrophysics, planetary science, radiation damage studies, medical physics and computing.

In such a research, we use different kinds of instrumental components and detectors, namely, ultra-high vacuum techniques that includes vacuum pumps, vacuum measuring devices, photodiode detector, Faraday cup, Si-Li detector, electron gun, ion sources, etc; detectors like channel electron multiplier and microchannel plate detectors.

In past my main work was to study the angular and energy distributions of emitted X- rays from thick and thin targets. Additionally, I have made significant contribution in study of molecular coherence effects in bremsstrahlung processes.

Now we are developing the step-up for study the fragmentation dynamics of biomolecules and clusters under the impact of ions and photons. Then we will move towards the time resolved studies in collaboration with others groups in India and abroad. 
Collaboration:  
  1. Department of Physics, Banaras Hindu University
  2. Physical Research Laboratory (PRL), Ahmedabad
  3. CIMAP – GANIL, Caen, France, Pin code-14000
Articles Published/ Accepted:  

Research publications:

1.     B. Singh, S. Kumar, S. Prajapati, B.K. Singh, X. Llovet and R. Shanker, 2017. Measurement of angular distributions of K X-ray intensity of Ti and Cu thick targets following impact of 10-25keV electrons. Journal of Electron Spectroscopy and Related Phenomena. 216: 17-22, ISSN: 0368-2048, DOI: 10.1016/j.elspec.2017.02.002.
2.     B. Singh, S. Prajapati, B.K. Singh and R. Shanker, 2020. Impact energy- and angular dependence of L X-ray emission from thick W (Z=74) element induced by 15-25keV electrons, atoms, 8(4): 82. ISSN: 2218-2004, DOI: 10.3390/atoms8040082.
3.  S. Prajapati, B. Singh, S. Kumar, B.K. Singh and R. Shanker, 2019. Experimental evidence of molecular coherence effects in bremsstrahlung radiation processes. Journal of physics B. 52: 145201, ISSN: 0953-4075, DOI:10.1088/1361-6455/ab22f1.
4.     S. Kumar, S. Prajapati, B. Singh, B.K. Singh and R. Shanker, 2017. Electron excited multiply charged Argon ions studied by means of an energy resolved electron- ion coincidence technique. European Physical Journal D. 71(3): 1, ISSN: 1434-6060, DOI: 10.1140/epjd/e2016-70583-8.
5.   B. Singh, S. Kumar, S. Prajapati, B.K. Singh, X. Llovet and R. Shanker, 2018. Measurement of the angular distribution of thick target bremsstrahlung produced by 10-25keV electrons incident on Ti and Cu targets. Radiation Physics and Chemistry. 150: 82, ISSN: 0969-806X, DOI: 10.1016/j.radphyschem.2018.04.027.
6.  B. Singh, S. Prajapati, B.K. Singh and R. Shanker, 2019. Angular and impact energy dependence of intensity ratio of Kα,β X-rays to underneath bremsstrahlung radiation emitted from 15 to 25keV electrons incident on Cu target. Applied Radiation and Isotopes. 148: 126, ISSN: 0969-8043, DOI: 10.1016/j.apradiso.2019.03.022.
7.  S. Prajapati, B. Singh, S. Kumar, B.K. Singh, C.A. Quarles and R. Shanker, 2020. Absolute double differential cross sections of bremsstrahlung produced from 4.0keV electrons incident on free Ar atoms. atoms, 8(4): 72. ISSN: 2218-2004, DOI: 10.3390/atoms8040072.
8.  B. Singh, S. Kumar, S. Prajapati, B.K. Singh, X. Llovet and R. Shanker, 2018. Angular dependence of Kβ/Kα intensity ratios of thick Ti and Cu pure elements from 10-25keV electron bombardment. Indian Journal of Physics. 92: 827. ISSN: 0973-1458, DOI: 10.1007/s12648-018-1184-6.
9.   S. Kumar, S. Prajapati, B. Singh, B.K. Singh and R. Shanker, 2017. An experimental setup for studying the core-excited atoms and molecules by electron impact using energy analysed electron-ion coincidence technique. Indian Journal of Physics, 91(7): 721. ISSN: 0973-1458, DOI: 10.1007/s12648-017-0973-7.
10. S. Kumar, S. Prajapati, B. Singh, B.K. Singh and R. Shanker, 2018. Formation, stability and dissociation dynamics of N2 n+ cations (n=1-2) in 3.5keV e - -N2 collisions studied by energy resolved electron-ion coincidence technique. Journal of Physics B, 51: 075201. ISSN: 0953-4075, DOI: 10.1088/1361-6455/aaad93.
11.  S. Prajapati, B. Singh, B.K. Singh and R. Shanker, 2019. Spectral energy and angular distributions of bremsstrahlung radiation produced by 3.5keV electrons in scattering with a free SF6 molecule. European Physical Journal D, 73(7): 1. ISSN: 1434-6060, DOI: 10.1140/epjd/e2019-90655-5.
12. S. Prajapati, S. Kumar, B. Singh, B.K. Singh and R. Shanker, 2019. A study of the mean kinetic energy of recoil ions from ion-charge-resolved electron spectra produced in 3.5keV electron-argon collisions. Journal of Electron Spectroscopy and Related Phenomena, 230: 46. ISSN: 0368-2048, DOI: 10.1016/j.elspec.2018.02.002.
13.  S. Prajapati, B. Singh, B.K. Singh and R. Shanker, Radiation Physics and Chemistry, 2018. Study of anisotropy of bremsstrahlung radiation emitted from 4.0keV electrons in scattering by CH4 molecule. Radiation Physics and Chemistry, 153: 92. ISSN: 0969-806X, DOI: 10.1016/j.radphyschem.2018.09.015.

14. S. Kumar, P. Bhatt, S. Prajapati, B. Singh, B.K. Singh and R. Shanker, 2016. Measurement of ion species produced due to bombardment of 450 eV N2+ ions with hydrocarbons-covered surface of tungsten: Formation of tungsten nitride. Nuclear Instruments and Methods in Physics Research B, 380: 50, ISSN: 0168-583X, DOI: 10.1016/j.nimb.2016.05.004

Seminar/ Workshop/ Conference Participation:  
  1. B. Singh, 2015. UGC Workshop on Physics of Particles, Nuclei and Related Instrumentation, organized by BHU Varanasi, India during January 27-31, 2015.
  2. S. Kumar, B. Singh, S. Prajapati, B.K. Singh and R. Shanker, 2016. Mass-Spectrum of Product Ions from the collision of 450eV  with Hydrocarbon covered surface of Tungsten. Paper presented and abstract published on page 181 of the Proceeding of q-PaCE 2016: International Topical Conference on Charged Particle Collisions and Electronic processes in Atoms, Molecules and Materials, organized by ISM Dhanbad, India during January 9-11, 2016.
  3. B. Singh, S. Prajapati, S. Kumar, B.K. Singh, X. Llovet and R. Shanker, 2017. Measurement of angular distributions of K X-ray intensity of Ti and Cu thick targets following impact of 10-25keV electrons. Paper presented and abstract published on page 127 of the Proceeding of NCAMP XXI 2017: 21ST National Conference on Atomic and Molecular Physics, organized by PRL Ahmedabad, India during January 3-6, 2017.
  4. B. Singh, S. Kumar, S. Prajapati, B.K. Singh, X. Llovet and R. Shanker, 2018. Measurement of the angular distribution of thick target bremsstrahlung produced by 10-25keV electrons incident on thick Ti and Cu targets. Paper presented and abstract published on page 60 of the Proceeding of ISAMP-TC7: 7th Topical Conference of the Indian Society of Atomic and Molecular Physics, organized by IISER/IIT Tirupati, India during January 6-8, 2018.
  5. B Singh, S Kumar, S Prajapati, B K Singh, X Llovet and R Shanker, 2018. Angular dependence of Kβ/Kα intensity ratios of thick Ti and Cu pure elements from 10-25keV electron bombardment. Paper presented and abstract published on page 30 of the Proceeding of ASTM-2018: National Conference on Advances in Spectroscopic Techniques and Materials, organized by IIT (ISM) Dhanbad, India during March 14-16, 2018.
  6. B Singh, S Prajapati, B K Singh and R Shanker, 2019. Angular and impact energy dependence of intensity ratio of Kα,β x-rays to bremsstrahlung radiation emitted from 10-25 keV electrons incident on a pure thick Cu (Z=29) target. Paper presented and abstract published on page 48 of the Proceeding of ICABS19: International Conference on Advances in Basic Sciences, organized by GDC Memorial College, Bahal, District Bhiwani (Haryana), India during February 7-9, 2019.
  7. B. Singh, S. Prajapati, B.K. Singh, and R. Shanker, 2019. Measurement of angular distribution of Lα,β,γ x-ray intensity of Pt thick target following impact of 10-25 keV electrons. Paper presented and abstract published on page 78 of the Proceeding of 22nd NCAMP 2019: 22nd National Conference on Atomic and Molecular Physics, organized by IIT Kanpur, India during March 25-28, 2019.
Updated On:  

15 Jan. 2021