中子辐照对晶体硼比热容影响的实验研究  

Experimental Study on Effect of Neutron-irradiation on Specific Heat Capacity of Crystalline Boron

作　　者：张建祥[1] 杨铜锁[1] 鲁瑾[2] 乔硕 ZHANG Jianxiang;YANG Tongsuo;LU Jin;QIAO Shuo(Shaanxi Engineering Research Center of Controllable Neutron Source/School of Science,Xijing University,Xi’an 710123,China;Department of Reactor Engineering Research and Design,China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]西京学院理学院陕西省可控中子源工程技术研究中心,陕西西安710123 [2]中国原子能科学研究院反应堆工程研究设计所,北京102413

出　　处：《信阳师范学院学报（自然科学版）》2020年第1期134-137,155,共5页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(11175267,11775310);陕西省教育厅科研基金项目(17JK1165);西京学院科研基金项目(XJ170116)

摘　　要：在中国原子能科学研究院的微型堆上对高纯度晶体硼粉末样品进行了不同时间(16、24、32、40、48、56、64 h)的辐照,然后用调制差示扫描量热法(MDSC)分别测量了不同中子辐照注量样品的比热容.结果表明,100℃~380℃温度范围内的平均比热容随中子辐照注量线性增大,决定系数为0.9896.最后对实验结果从理论上进行了分析.High purity crystalline boron powder samples were irradiated on the micro reactor of China Institute of Atomic Energy in different periods of time(16,24,32,40,48,56,64 h).The specific heat capacity of the samples were measured by means of the modulated differential scanning calorimetry(MDSC).The results showed that the average specific heat capacity of the samples in the temperature range of 100 ℃ ~380 ℃ increases linearly with the neutron fluence and the coefficient of determination is 0.989 6. Finally the result was analyzed theoretically.

关 键 词：晶体硼 中子注量率 调制差示扫描量热法 比热容 

分 类 号：TL816.3[核科学技术—核技术及应用]