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叙述了为提高单粒于微通退板探测器的性能和稳定性所采取的措施。在来用本底同时交替扣除法以后,探测效率可以达到85%以上。探测效率为50%时,单粒子微通道板探测器探测14C的丰度灵敏度达到2×10-15。
Describes the steps taken to improve the performance and stability of the single-chip microdendretch detector. In the background to the same time after the alternate deduction method, the detection efficiency can reach more than 85%. When the detection efficiency is 50%, the abundance sensitivity of single particle microchannel plate detector to detect 14C reaches 2 × 10-15.