DEVELOPMENT AND EXPERIMENTAL VALIDATION OF RESPONSE MODELLING FOR TIME-OF-FLIGHT NEUTRON DETECTION AND IMAGING SYSTEMS

DEVELOPMENT AND EXPERIMENTAL VALIDATION OF RESPONSE MODELLING FOR TIME-OF-FLIGHT NEUTRON DETECTION AND IMAGING SYSTEMS
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飞行时间中子探测和成像系统响应模型的开发和实验验证

DOI:
10.1051/epjconf/202124716001
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发表时间:
2021
影响因子:
--
通讯作者:
Bradnam S
Bradnam S
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--
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作者:
Bradnam S

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探索了飞行时间中子探测系统在具有时间相关的伽马射线和中子发射源(如自发裂变辐射源Cf-252)中的应用和可行性。对于从单个自发裂变事件中发射的多个伽马射线和中子,在多探测器阵列上进行近瞬时的伽马射线探测,随后进行中子探测,可以确定由该事件产生的中子的相关飞行时间。利用一套专门开发的分析工具,对兰开斯特大学Cf-252水箱源设施的蒙特卡罗模拟和实验数据进行了比较。应用定制的飞行时间成像算法,矢量优化(VBO),通过这种方法确定21厘米内的真实源位置。
The application and feasibility of a time-of-flight neutron detection system is explored for sources with time correlated gamma-ray and neutron emissions, such as the spontaneous fission emitter, Cf-252. For the emission of multiple gamma rays and neutrons from a single spontaneous fission event, a near instantaneous gamma-ray detection followed by a later neutron detection on a multi-detector array allows for an associated time-of-flight to be determined for a neutron arising from that event. Using a suite of purpose developed analysis tools, Monte-Carlo simulation and experimental data are compared for the Cf-252 water tank source facility at Lancaster University. Applying a bespoke time-of-flight imaging algorithm, vector-based optimisation (VBO), the true source location is determined within 21 cm by this approach.
裂变反应事件产量算法
DOI: --
发表时间: 2016
期刊:
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