5-11 Incore Neutron Monitoring Techniques for Accelerator Driven Sub-critical Facility

• 作者: Chen Zhiqiang Cui Wenjuan He Zhiyong Luo Yuxi Xu Hushan Zhang Xueyin Zhao Qiang
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报：英文版
• 学科: 物理学
• 关键词: TECHNIQUES ACCELERATOR DRIVEN
• 年，卷（期）: 2014,（1）
• 页码范围: 221-222
• 页数: 2页
• 分类号: O4

摘要

In an accelerator driven sub-critical (ADS) facility, a sub-critical reactor is driven by an intense external neutronsource provided by an accelerator coupled to a spallation target. The real-time measurement of incore neutron fluxin an ADS facility is necessary for the commissioning measurements of the beams from the accelerator, for theroutine verification of control rod positions, and for the calibration of the excore power range nuclear instruments.In a commercial reactor used in nuclear industry, several incore neutron detectors are used commonly to measureradial neutron flux profile at different radial locations within the reactor core. In an ADS facility, we propose thatnot only radial neutron flux profile but also vertical flux profile should be measured at different locations, becausethe incore neutron flux is affected dramatically by the neutrons from the spallation target.