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Position Sensitive Detectors with Particle-Type Identification for Recording Images of Neutron and Gamma Sources in Mixed Fields
Atomic Energy ( IF 0.5 ) Pub Date : 2020-09-01 , DOI: 10.1007/s10512-020-00691-7
M. V. Prokuronov , V. D. Sevast’yanov , A. V. Yanushevich , R. M. Shibaev

The design and characteristics of position sensitive detectors implemented in the form of a matrix of individual detectors (modules) with selective registration of electrons and protons are examined. It is proposed that such detectors be used as a basis for considering the possibility of building introscopes with a coded aperture for detecting images of sources of mixed fast-neutron and γ-radiation. Scintillation detectors with digital identification of neutrons and γ-rays according to the pulse shape or Cherenkov detectors registering only electrons (high-energy protons) are used as modular detectors. The registration of analogue pulses of detectors and their conversion into a digital form and subsequent digital processing are performed simultaneously, in parallel, and independently. This is optimal for increasing speed of operation and the loading of the modular scintillation detector to 106 counts/sec in the energy range 0.2–15 MeV for neutron radiation, 0.015–7 MeV for γ-radiation, and to 2∙108 counts/sec for Cherenkov radiation.

中文翻译:

用于在混合场中记录中子源和伽马源图像的具有粒子类型识别功能的位置敏感探测器

检查了以具有电子和质子选择性配准的单个探测器(模块)矩阵形式实现的位置敏感探测器的设计和特性。建议将此类探测器用作考虑构建带有编码孔径的内窥镜的可能性的基础,用于探测混合快中子和 γ 辐射源的图像。根据脉冲形状对中子和 γ 射线进行数字识别的闪烁探测器或仅记录电子(高能质子)的切伦科夫探测器用作模块化探测器。检测器模拟脉冲的注册及其转换为数字形式和随后的数字处理是同时、并行和独立进行的。
更新日期:2020-09-01
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