Secondary neutron source rod for reducing tritium emission

• Main Authors: ZHENG YIXIONG, FU YARU, DANG YU, LU JUNQIANG, XU SHIYIN, SUN JINGYA, MAO LANFANG, CUI YANGUANG
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2019
• Subjects: CONVERSION OF CHEMICAL ELEMENTS; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS; RADIOACTIVE SOURCES

The invention provides a secondary neutron source rod for reducing tritium emission. The secondary neutron source rod is characterized in that a cladding tube of the secondary neutron source rod is coated with a tritium resistance coating or a nickel-plated tritium absorbing material is placed in the cladding tube or an inner cladding material is zirconium alloy, and the above three modes can alsobe combined during use. The secondary neutron source rod provided by the invention has the benefits that tritium generated by the secondary neutron source rod self can be retained in the rod, the emission of the tritium is effectively reduced, the content of the tritium in a coolant is reduced, and the environmental pollution is reduced. 本发明提供种减少氚排放的次级中子源棒，其特征在于，在所述次级中子源棒的包壳管上涂覆阻氚涂层,或在所述包壳管内放置镀镍吸氚材料或所述内包壳材料为锆合金，上述三种方式也可组合使用。本发明提供的次级中子源棒可将自身产生的氚留存在棒内，有效降低氚排放量，减少冷却剂中的氚含量，减轻环境污染。