【作者】 胡孟春； 陈力雄； 甫跃成； 李忠宝； 唐登攀； 张建华； 李如荣； 黄雁；

【Author】 Hu Mengchun Chen Lixiong Fu Yuecheng Li Zhongbao Tang Dengpan Zhang Jianhua Li Rurong Huang Yan(Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900,China)

【机构】 中国工程物理研究院核物理与化学研究所；

【摘要】 无机闪烁体抗中子干扰能力是在n、?混合场中测量?辐射时非常关注的参量,该量的大小,直接决定这种辐射场下?测量信号的可靠性。由于无机闪烁体的中子绝对灵敏度很难精确标定,应用无机闪烁体?绝对灵敏度与中子绝对灵敏度比的直接方法很难得到较可靠的抗中子干扰能力。本文介绍在脉冲中子辐射源中,应用脉冲电荷法、峰值电流法评估无机闪烁体抗中子干扰能力,该方法可以在不用测点中子注量数据的情况下,就能够很简便的得到无机闪烁体抗中子干扰能力的相对可靠数据。更多还原

【Abstract】 The anti-neutronic interference ability of inorganic scintillator is a widely attentioned parameter when measuring γ radiation in n and γ field.This parameter determines directly the dependability of γ measuring signal in n and γ field.Since inorganic scintillator’s absolute neutronic sensitivity is difficult to be scaled accurately,it’s quite hard to get the anti-neutronic interference ability of inorganic scintillator by computing the ratio of inorganic scintillator’s absolute γ sensitivity to absolute neutronic sensitivity.In this paper,we showed how to evaluate the anti-neutronic interference ability of inorganic scintillator by using the pulsant charge method and the peak current method in pulse neutron radiation source.With these methods,comparatively dependable data of the anti-neutronic interference ability of inorganic scintillator can be gotten easily without using neutron fluence data in the measuring point.更多还原