The article discusses the question of obtaining energy spectra of neutron and γ-quantum sources using a spectrometer based on a stilbene monocrystal for separation according to the pulse shape. A procedure for calibrating the spectrometric path is described. Mathematical modeling implementing the Monte Carlo method in the Geant4 environment was used to calculate the matrices of responses to neutrons and γ-quanta detected using this instrument confi guration. The spectra of the neutron and associated γ-radiation from the generators of 2.5 and 14 MeV neutrons are unfolded with the aid of the GRAVEL iterative algorithm. The relative width of peaks in unfolded neutron spectra (unfolding uncertainty) comprises 19 ± 0.3 and 7.2 ± 0.7% for D–T- and D–D-neutrons, respectively.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
M. Taggart and P. Sellin, “Comparison of the pulse shape discrimination performance of plastic scintillators coupled to a SiPM,” Nucl. Instrum. Meth. Phys. Res. A, 908, 148–154 (2018).
M. Sénoville, F. Delaunay, M. Pârlog, et al., “Neutron-γ discrimination with organic scintillators. Intrinsic pulse shape and light yield contributions,” Nucl. Instrum. Meth. Phys. Res. A, 971, 164080 (2020).
T. Yanagida, K. Watanabe, and Y. Fujimoto, “Comparative study of neutron and gamma-ray pulse shape discrimination of anthracene, stilbene, and p-terphenyl,” Nucl. Instrum. Meth. Phys. Res. A, 784, 111–114 (2015).
B. Liu, H. Lv, H. Xu, et al., “Study on neutron spectrum unfolding method of organic scintillation measurement based on iterative regularization,” Ann. Nucl. Energy, 162, 108504 (2021).
D. Cester, M. Lunardon, G. Nebbia, et al., “Pulse shape discrimination with fast digitizers,” Nucl. Instrum. Meth. Phys. Res. A, 748, 33–38 (2014).
D. Chernikova, V. L. Romodanov, A. G. Belevitin, et al., “Experimental and numerical investigations of radiation characteristics of Russian portable/compact pulsed neutron generators: ING-031, ING-07, ING-06 and ING-10-20-120,” Nucl. Instrum. Meth. Phys. Res. A, 746, 74–86 (2014).
J. Birks, The Theory and Practice of Scintillation Counting, Pergamon Press, Oxford (1964).
National Institute of Standards and Technology. Physical Means [Electronic resource], https://physics.nist.gov/PhysRefData/Star/Text/PSTAR.html, acc. May 4, 2022.
G. Knoll, Radiation Detection and Measurement, Wiley & Sons, New York (1999).
S. Das, V. Kashyap, and B. Mohanty, “Energy calibration of EJ-301 scintillation detector using unfolding methods for fast neutron measurement,” Nucl. Instrum. Meth. Phys. Res. A, 1042, 167405 (2022).
S. Badiei, G. Raisali, M. Kardan, et al., “Development and experimental validation of a fast neutron spectrometry system based on Superheated Drop Detectors (SDDs) operating under different external pressures,” Nucl. Instrum. Meth. Phys. Res. A, 1010, 165569 (2021).
E. V. Ryabeva, I. V. Urupa, E. E. Lupar, et al., “Calibration of EJ-276 plastic scintillator for neutron-gamma pulse shape discrimination experiments,” Nucl. Instrum. Meth. Phys. Res. A, 1010, 165495 (2021).
C. Yong Hao, C. XiMeng, L. JiaRong, et al., “Unfolding the fast neutron spectra of a BC501A liquid scintillation detector using GRAVEL method,” Sci. China (Phys. Mech. & Astr.), 57, No. 10, 1885–1890 (2014).
V. V. Gaganov, “Calculation of spectra of neutrons and charged particles produced in a target of a neutron generator,” Phys. Atomic Nuclei, 80, No. 9, 1495–1499 (2017).
E. I. Pinzhenin, A. D. Khilchenko, P. V. Zubarev, et al., “Development of FPGA-based real-time neutron spectrometer using stilbene scintillator,” Plasma Fus. Res., 14, 2402025 (2019).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Atomnaya Énergiya, Vol. 133, No. 2, pp. 101–105, August, 2022.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Savin, D.I., Urupa, I.V., Lupar, E.E. et al. Stilbene-Based Spectrometer for Unfolding the Energy Distribution of Fast Neutron Sources. At Energy 133, 109–114 (2022). https://doi.org/10.1007/s10512-023-00981-w
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10512-023-00981-w