Preparation for a neutronics experiment using a discharge fusion device and an imaging plate neutron detector

Preparation for a neutronics experiment using a discharge fusion device and an imaging plate neutron detector
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使用放电聚变装置和成像板中子探测器进行中子学实验的准备

DOI:
10.1016/j.fusengdes.2019.03.005
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发表时间:
2019
影响因子:
1.7
通讯作者:
Konishi Satoshi
Konishi Satoshi
中科院分区:
工程技术3区
文献类型:
--
作者:
Mukai Keisuke;Konishi Satoshi

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氚增殖率(TBR)是决定氘氚聚变堆氚自给率的重要参数之一。利用放电型紧凑聚变中子源和中子成像板分别进行了二维中子学实验。我们报告了NIP的标定方法和放电条件的优化,以提高中子产生率。在中子注量为103 ~ 107 n/cm ~ 2的范围内,NIP中的中子注量与单位面积的光激发光(PSL)呈线性关系。在优化的放电条件下,获得了大于107 n/s的中子产率。它表明,定量的二维测量的NIP是可行的,使用的线性关系和相关系数的能量谱。
Tritium breeding ratio (TBR) is one of the most important parameters determining the tritium self-sufficiency of a deuterium-tritium fusion reactor. A neutronics experiment is planned to measure the spectral neutron fluences two-dimensionally (2D) using a discharge-type compact fusion neutron source and a neutron imaging plate (NIP), respectively. We report a calibration method for the NIP and optimization of the discharge condition to enhance the neutron production rate. A linear relationship between the neutron fluence in the NIP and photostimulated luminescence (PSL) per area was obtained in the range of the neutron fluence from 103to 107n/cm2. A neutron production rate higher than 107n/s was successfully achieved by the optimized discharge condition. It is shown that a quantitative 2D measurement by the NIP is feasible using the linear relationship and a correlation coefficient on the energy spectrum.
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