柱形临界装置活性区组件中子增殖就地测量

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In Situ Measurement of Neutron Multiplication in Active Zone Components of Pole Shaped Critical Assembly

Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, Sichuan, 621900, China

摘要: 为检验柱形临界装置活性区设计预留的徒手装配的安全裕度是否恰当,建立偏保守实验模型,开展中子增殖就地测量实验。通过逐步添加裂变系统部件模拟徒手装配状态,测量得到实验状态下的增殖值为2.67。该值低于GB15146.7-94规定的限值,证明活性区设计留有的安全裕度足够大,徒手装配时不存在临界安全问题。
- 临界装置 /
- 活性区 /
- 裂变系统 /
- 中子增殖 /
- 就地测量
Abstract: In order to verify the effectiveness of the safety margin preset for the empty-handed assembly in the design of active zone for the pole shaped critical assembly,the conservative experiment model is es-tablished to carry out the in situ measurement of neutron multiplication.By adding components of fission system one by one,the multiplication in this experiment is measured as 2.67,which is under the limit in GB15146.7-94.The experiment shows that the safety margin of active zone preset in the design is enough,and the critical safety can be insured in the empty-handed assembling.
- Critical assembly /
- Active zone /
- Fission system /
- Neutron multiplication /
- In situ measurement