包覆燃料颗粒裂变产物释放试验  

FISSION PRODUCT RELEASE EXPERIMENT OF COATED FUEL PARTICLE

作　　者：徐世江[1] 罗京汉 包覆燃料颗粒研制组 

机构地区：[1]清华大学核能技术设计研究院 [2]原子能科学研究院 副研究员 [3]高级工程师

出　　处：《核科学与工程》1991年第2期144-151,5,共8页Nuclear Science and Engineering

摘　　要：提供经过适当考验的燃料元件是动力堆发展的先决条件之一,高温气冷堆也不例外。高温堆燃料元件考验的总目标是研制出不仅在反应堆正常运行条件下,而且在事故和瞬态条件下,裂变产物释放率低的燃料元件。燃料元件的考验由冷态和热态两部份组成,热态考验一般在冷态考验合格的基础上进行,是燃料元件最终考验。包覆燃料颗粒是高温堆燃料元件的关键,在冷态考验的基础上,我们进行了辐照试验,测定了包覆燃料颗粒的裂变产物释放率,Xe-133和 I-131的释放率在10^(-6)至10~_(-7)之间。The overall object of test of the HTR fuel element is to qualify a fuel element which minimizes fission product release under normal and t■ansient conditions.The test of nuclear fuel element consists of cold and hot qualifica- tions.The later is carried out on the basis of the former and is the final qualification of fuel element. Coated fuel particle is the key component of the fuel element of the high temperature gas-cooled reactor.On the basis of cold experiment,the fission product release experiment has been carried out.The release rate of Xe-133 and I-131 are in the range of 10^(-6)～10^(-7).

关 键 词：包覆燃料颗粒 裂变产物 释放率 

分 类 号：TL352[核科学技术—核技术及应用]