Determination of detector response function for 4,43mev γ-quanta in reaction of inelastic neutron scattering on carbon
Keywords:
response function, γ-quanta, scintillation detectorsAbstract
The work is devoted to the determination of the response function of a NaI(Tl) detector for the 4.43 MeV γ-rays, produced in the inelastic scattering of neutrons with an energy of 14.1 MeV on 12C nuclei. The amplitudes of pulses, recorded in gamma spectrometry, are proportional to the energy deposited by the incident photons in the detection medium. One of the main problems of radiation detection is the restoration of the radiation characteristics of the signals measured at the detector output. This requires knowledge of the general characteristics of the radiation detector, working as a converter of the energy of the radiation into electronic signals. The basic characteristic of the detector is its response function, which can be defined as the probability that a particle with specified properties generates a specific signal, which is registered by the detector. These article presents the results of the simulation of the response function of a scintillation detector based on a NaI(Tl) crystal for gamma – rays from the inelastic scattering of fast neutrons on 12C in order to study the mechanism of its formation.
References
Быстрицкий В.М., Грозданов Д.Н., ЗонтиковА.О., Копач Ю.Н., Рогов Ю.Н., Русков И.Н., Садовский А.Б., Ской В.Р., Бармаков Ю.Н., БоголюбовЕ.П., Рыжков В.И., Юрков Д.И. Угловое распределение γ-квантов с энергией 4,43 МэВ, образующихся при неупругом рассеянии нейтронов с энергией 14,1МэВ на ядрах // Письма в ЭЧАЯ. 2016. Т. 13, No4(202). C. 793–807.
Даниленко В.Н., Ковальский Е.А., СкубоЮ.В. Моделирование экспериментов с помощью детекторов гамма-излучения на основе сжатого ксенона// Атомная энергия. 2008. Т. 105, вып. 1. С. 38–44.
Захарченко А.А., Наконечный Д.В., ШляховИ.Н. Моделирование энергетической зависимости чувствительности CdTe (CdZnTe) детекторов гамма-излучения // Технология и конструирование в электронной аппаратуре. 2007. No 1. С. 28–31.
Jin Y., Gardner R.P., and Verghese K. A semiempirical model for the gamma–ray response function of germanium detectors based on fundamental interactionmechanisms // Nuclear Instruments and Methods in Physics Research A242. North – Holland, Amsterdam. 1986.P. 416–426.
Nuclear Instruments and Methods in Physics Research A 506. 2003. P. 250–303.
Ruskov I.N., Kopatch Yu.N., Bystritsky V.M.,Skoy V.R., Shvetsov V.N., Hambsch F.J., Oberstedt S.,Capote Noy R., Sedyshev P.V., Grozdanov D.N., IvanovI.Zh., Aleksakhin V.Yu., Bogolubov E.P., BarmakovYu.N., Khabarov S.V., Krasnoperov A.V., Krylov A.R.,Obho J. &353;, Pikelner L.B., Rapatskiy V.L., RogachevA.V., Rogov Yu.N., Ryzhkov V.I., Sadovsky A.B.,Salmin R.A., SapozhnikovM.G., Slepnev V.M., SudacD., Tarasov O.G., Valković V., Yurkov D.I., ZamyatinN.I., Zeynalov Sh.S., Zontikov A.O., Zubarev E.V..TANGRA-Setup for the Investigation of Nuclear FissionInduced by 14.1 MeV Neutrons // Phys. Procedia. 2015.V. 64. P. 163–170.
Steljie M., Milosevie M., Belicev P. MonteCarlo simulations of the pulse – height response functionof germanium detector // Proceedings 52nd ETRAN Con-ference, Palie, June 8–12, 2008. NT2. 4. P. 1–4.
Sood A., Gardger R. A new Monte Carlo assisted approach to detector response function // Nucl. In-str. & Meth B. 2004. Vol. 213. P. 100–104.
