The development of down scattered neutron detector by using new material sciintillator

对惯性约束聚变(ICF)实验中产生的下散射中子(DSN)进行了测量。由于聚变中子与燃料氚原子的弹性碰撞产生了DSN，因此DSN能量较低。DSN的探测一直是一个具有挑战性的课题，因为DSN的数量很少，因此要求高灵敏度，DSN的能量低，对低能中子的灵敏度高，DSN在初级中子后到达探测器，数量是DSN的1000倍，因此需要非常好的时间分辨率。经过三年的时间，我们研制出了DSN检测器，最终成功地检测出了DSN。该探测器将用于ICF实验。

The down scattered neutron (DSN) which is generated in the inertial confinement fusion (ICF) experiment, has been aimed to be measured. The DSN is generated by elastic collision between fusion neutron and fuel deuterium atom, thus the energy of the DSN is low. The detection of the DSN has been challenging subject because, the amount of DSN is quite low thus the high sensitivity is required, the energy of DSN is low thus the high sensitivity for low energy neutron, the DSN will arrive at the detector after the primary neutron which amount is 1000 times higher than DSN thus very excellent time resolution is necessary. We have been developed the DSN detector in three years, and finally we succeeded to detect DSN. This detector will be utilized into the ICF experiment.