D（Be）中子源能谱的测量  

MEASUREMENT OF THE ENERGY SPECTRUM FOR d(Be)NEUTRON SOURCE

作　　者：刘慢天 龙先灌 彭秀峰 何福庆 

出　　处：《四川大学学报（自然科学版）》1995年第3期311-314,共4页Journal of Sichuan University(Natural Science Edition)

摘　　要：用阈探测器法测量了１．２ｍ回旋加速器１３．４ＭｅＶＤ（Ｂｅ）中子源在０°方向的能谱．考虑了各种修正，给出了能谱的误差，并用一已知激发函数的激活片Ａｕ算出其对所测中子能谱的比反应率，与测量的值进行了比较，两者在实验误差范围内一致．By using threshold detector method,the energy spectrum of 13.4 MeV D(Be)neutronsource in the 0°direction with respect to incident beam is measured at the cyclotron of SichuanUniversity.The various corrections for the energy spectrum are considered and the error of it is given.The calculated special reaction rate, of Au whose excitation function is known, for neutron spectrumobtained,is in agreement with the measured special reaction rate whthin experimental error.So theneutron energy spectrum determined in this work is reliabe.

关 键 词：阈探测器法 中子能谱 比反应率 迭代法 中子源 

分 类 号：O571.54[理学—粒子物理与原子核物理]