Testing of tritium breeder blanket activation foil spectrometer during JET operations
Testing of tritium breeder blanket activation foil spectrometer during JET operations
复制标题
JET 操作期间氚增殖毯激活箔光谱仪的测试
DOI：
10.1016/j.fusengdes.2018.02.005
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发表时间：
2018
影响因子：
1.7
通讯作者：
I. Zychor
中科院分区：
文献类型：
--
作者：
Bethany Coiling;H. Bergsåker;I. Bykov;L. Frassinetti;A. Garcia;T. Hellsten;T. Johnson;S. Menmuir;P. Petersson;E. Rachlew;S. Ratynskaia;M. Rubel;E. Štefániková;P. Ström;E. Tholerus;P. Tolias;P. Olivares;A. Weckmann;Yushun Zhou;I. Zychor
对核聚变反应堆氚增殖包层试验模块内的核环境进行精确测量，对于确定与氚燃料供应自给、氚核算以及包层产生的局部功率水平评价有关的氚产出率至关重要。这需要在恶劣的辐射和温度环境下，对试验氚增殖包层模块内随时间变化的光谱中子通量进行评估。在最近的一次氘-氘运动中，为选择高纯度的活化箔，在欧洲联合环面（JET）机器上研究、部署和测试了基于活化箔的光谱仪系统在ITER中使用气动传递系统确定中子通量密度的应用。光谱仪系统的部署为探测器测量系统、相关硬件和后处理技术提供了重要的功能和实际测试，用于分析通过使用列表模式数据收集产生的大数据集。测试是宝贵的系统优化，为未来计划的测试在氚-氚和氘-氚条件。本文对迄今收集到的时间和能量谱进行了分析，并介绍了后处理方法的发展现状。
Accurate measurement of the nuclear environment within a test tritium breeding-blanket module of a fusion reactor is crucial to determine tritium production rates which are relevant to self-sufficiency of tritium fuel supply, tritium accountancy and also to the evaluation of localised power levels produced in blankets. This requires evaluation of the time-dependent spectral neutron flux within the test tritium breeding-blanket module under harsh radiation and temperature environments. The application of an activation foil-based spectrometer system to determine neutron flux density using a pneumatic transfer system in ITER has been studied, deployed and tested on the Joint European Torus (JET) machine in a recent deuterium - deuterium campaign for a selection of high purity activation foils. Deployment of the spectrometer system has provided important functional and practical testing of the detector measurement system, associated hardware and post processing techniques for the analysis of large data sets produced through the use of list mode data collection. The testing is invaluable for the optimisation of systems for future planned testing in tritium - tritium and deuterium - tritium conditions. Analysis of the time and energy spectra collected to date and the status of the development of methods for post-processing are presented in this paper.