CARR堆瞬发伽马活化分析装置包括:中子束流系统、屏蔽体、控制系统、探测系统和数据获取及处理五部分。CARR堆瞬发伽马活化分析装置的中子束流是采用20cm×φ6cm的单晶铋作为过滤器,单晶铋放置在HT2孔道的转动门中。中子束流经过单晶铋之后,在孔道出口要再经过一个外部准直器进一步准直以约束束流截面。从准直器出来的束流到达样品室对样品进行照射,最后利 CARR stack instant gamma analysis device includes: Neutron beam system, shield, control system, detection system and data acquisition and processing of five parts. The neutron beam of the CARR stack instant gamma activation assay was prepared using single crystal bismuth (20 cm × φ6 cm) as the filter and the bismuth monocrystal placed in the swinging gate of the HT2 cell. After the neutron beam passes through the monocrystalline bismuth, it is further collimated by an external collimator at the outlet of the channel to confine the beam cross section. The beam from the collimator reaches the sample chamber to illuminate the sample, and finally the sample is irradiated