CAJ | 학술논문

西安脉冲堆于2010年建成了大空间中子辐照实验平台。本文介绍了该实验平台辐射场设计参数、辐射场测量方法和实测结果。采用蒙特卡罗方法计算了实验平台内中子初始谱。利用多箔活化法测量了中子能谱，解谱方法采用遗传算法，并与SAND-Ⅱ解谱方法进行了对比，对比结果较为一致，证明了遗传算法解谱的有效性。应用热释光剂量计测量了γ射线吸收剂量率。测量结果表明，该实验平台辐射场参数符合设计要求。
서안맥충퇴우2010년건성료대공간중자복조실험평태。본문개소료해실험평태복사장설계삼수、복사장측량방법화실측결과。채용몽특잡라방법계산료실험평태내중자초시보。이용다박활화법측량료중자능보，해보방법채용유전산법，병여SAND-Ⅱ해보방법진행료대비，대비결과교위일치，증명료유전산법해보적유효성。응용열석광제량계측량료γ사선흡수제량솔。측량결과표명，해실험평태복사장삼수부합설계요구。
The large space neutron irradiation platform in Xi ’an Pulsed Reactor was built in 2010 .The designed parameters ,measurement method and experimental result of radiation field of the experiment platform were introduced in the paper .With a prior spectrum calculated by Monte-Carlo method , the neutron spectra of the experiment platform were measured by using multiple-foil activation technique ,and unfolded with genetic algorithm (GA ) . The unfolding result of GA is in accordance well with the result of SAND-Ⅱ method ,and the validity of GA was proved .γ-ray absorbed dose rate was measured by using thermoluminescent dosimeters . The results show that the radiation field parameter of the experiment platform meets the design requirement .