塑料闪烁探测器氘氚中子灵敏度标定

THE SENSITIVITY CALIBRATION OF THE PLASTIC SCINTILLATION DETECTRS FOR D-T NEUTUTRONS

摘要: 为了测量LF-12装置激光聚变D-T中子产额,我们通过NS-200加速器和脉冲中子管对实验所用几个塑料闪烁探测器的D-T中子灵敏度进行了标定,给出了各探测器在不同条件下的D-T中子灵敏度值。加速器和脉冲中子管两种方法的测量误差分别为±13%和±50%,两种标定结果在误差范围内是一致的。

Abstract: In order to measure the D-T neutron yield of laser fusion at LF-12 facility, the D-T neutron sensitivities of the plastic scintillation detectors were calibrated by the direct current neutrons from NS-200 accelerator and the pulsed neutrons from the pulsed neutron tube.The measurement errors under the two conditions were ±13% and ±50%,separately.The two kinds of calibration results are in agreement within the experiment error extent.