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本实验是在新建立的反宇宙射线低本底高纯锗γ谱仪上进行的。反符合方法是低本底γ谱仪降低μ介子本底采用的屏蔽措施。μ介子有很强的贯穿能力,可在反符合探测器和主探测器上同时产生信号,经反符合电路的选择后,就能把主探测器输出脉冲中的μ介子事件消除,从而达到抑制μ介子本底的目的。实验采用塑料闪烁体作为反符合探测器,反符合信号宽度为30μs。表1列出了
This experiment was carried out on the newly established anti-cosmic low background high purity germanium gamma spectrometer. The anti-coincidence method is a low-background gamma spectrometer to reduce the muon-based background shielding measures used. μ meson has a strong penetrating ability, which can generate signals simultaneously on the anti-coincidence detector and the main detector. After the selection of the anti-coincidence circuit, the muon event in the main detector output pulse can be eliminated to achieve the suppression The purpose of the muon background. Experiments using plastic scintillators as anti-coincidence detectors, anti-coincidence signal width of 30μs. Table 1 lists