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为改进钚放射性气溶胶的监测,提出了双道补偿方式的能量甄别法。1967—1968年进行了原理性实验。实验中采用了一种截圆锥体光导和光电倍增管组合的闪烁探测器。它保持了较大的灵敏面积,又有较好的分辨本领。用本方法,实验得到单次取样、即时测量的灵敏度为40分钟测出2.5MPC_(Pu)(钚的最大容许浓度的2.5倍)。证明了双道能量补偿法比道上补偿能量甄别法为优,使灵敏度提高2.4倍。
In order to improve the monitoring of radioactive aerosol of plutonium, an energy discrimination method of dual compensation is proposed. From 1967 to 1968 conducted a theoretical experiment. A scintillation detector using a combination of a truncated cone photon and a photomultiplier tube was used in the experiment. It maintains a large sensitive area, there are better resolution skills. With this method, a single sample was obtained experimentally, with a sensitivity of 2.5 MPC Pu (2.5 times the maximum allowable concentration of plutonium) measured in real time with a sensitivity of 40 min. It is proved that the dual energy compensation method is superior to the offset energy compensation method, which improves the sensitivity by 2.4 times.