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ITER中子通量监测器原型的研制 被引量:4

Development of a prototype neutron flux monitor for ITER
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摘要 研制的用于国际热核实验堆(ITER)的中子通量监测器由裂变室探测器组合构成,包括两只不同灵敏度的阴极上涂有高纯裂变材料235U的裂变室探测器和一只未涂裂变材料的'空白'探测器。此组合用于中子、γ射线、硬X射线的混合辐射场条件下对中子的测量,可完全扣除后两种辐射对中子通量测量的影响,提高测量精确度。探测器的电压坪长、坪宽、坪斜、计数坪特曲线及宽度、输出脉冲宽度和探测系统计数率等主要参数经测试已达到设计要求,部分参数(如计数率)已接近ITER近期的技术水平。通过提高相关材料的纯度、优化裂变室结构和采用Campbelling模式及高精度的信号选择器,可研制出适用于ITERD D聚变条件下(低聚变中子产额)的快中子通量监测器。 A new fission chamber assembly has been developed, aiming to support the design of this ITER components. The fission chamber assembly includes two 235U fission chamber detectors and a 'blank' detector of same dimensions but without fissile materials, to identify noises from gamma-rays, X rays, etc. The assembly main parameters measured in the laboratory approach the recent level of ITER. After further development and modification, it will be used as the neutron flux monitor for the phase of D-D fusion of ITER.
出处 《核聚变与等离子体物理》 EI CAS CSCD 北大核心 2005年第2期105-109,共5页 Nuclear Fusion and Plasma Physics
基金 国家自然科学基金项目(1075012) 核工业西南物理研究院人才再培养基金
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参考文献2

  • 1Nishtani T, Kaasain S, Johnson L G, et al. Neutron monitor using microfission chamber for the International Thermonuclear Experimental Reactor [J]. Rev. Sci. Instru., 1999, 70(1):1141.
  • 2ITER team. ITER Design Description Document Diagnostics,5.5. B Neutron diagnostics [ R] .2003.

同被引文献17

  • 1杨进蔚,宋先瑛,李旭,张炜,郦文忠,王世庆.HL-1M托卡马克中的中子通量和辐射剂量当量测量[J].物理学报,2005,54(4):1648-1652. 被引量:8
  • 2杨进蔚,冯开明,陈志,杨青巍.产氚包层中聚变中子诊断系统的概念设计和计算[J].核聚变与等离子体物理,2006,26(3):190-194. 被引量:3
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