A dual‐scintillator time‐of‐flight spectrometer for secondary fast neutrons in proton radiotherapy

被引：0

作者：

Wei Cheng

Wenbao Jia

Daqian Hei

Weiwei Qu

Lian Chen

Gaolong Zhang

机构：

[1] Nanjing University of Aeronautics and Astronautics,College of Materials Science and Technology

[2] Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions,School of Nuclear Science and Technology

[3] Lanzhou University,State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection

[4] Soochow University,State key laboratory of particle detection and electronics

[5] University of science and technology of china,School of Physics

[6] Beihang University,undefined

来源：

Journal of Radioanalytical and Nuclear Chemistry | 2021年 / 327卷

关键词：

Neutron energy; Pulse shape discrimination; Time‐of‐flight; Scintillation detector;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In order to measure the energy spectra of secondary neutrons in proton and heavy-ion radiotherapy, a neutron spectrometer has been developed. In this paper, two organic scintillation detectors combined with photomultiplier tubes were used to form a dual-scintillator time-of-flight spectrometer. The performance of this spectrometer was tested with a DT neutron generator, and the detection efficiency of each detector as well as the spectrometer were simulated by Geant4 toolkit. It’s shown that the time resolution of the spectrometer is 0.797 ns with an energy resolution of 26.4% for neutrons with an energy of 14 MeV at a flight distances over 150 cm.

引用

页码：1317 / 1323

页数：6

共 49 条

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