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介绍了对自行研制的低气压多丝正比室在低能下的系统测试结果。结果显示:在最佳工作条件下,低气压多丝正比室的位置分辨率小于 0.8 mm,时间分辨率小于2 ns,低能下的探测效率接近 100％,适合于放射性核束的束流监测。
The system test result of low pressure multi-filament proportional chamber under low energy is introduced. The results show that under optimal operating conditions, the low pressure multi-filament proportional chamber has a position resolution of less than 0.8 mm, a time resolution of less than 2 ns, and a detection efficiency of nearly 100% at low energy, which is suitable for beam monitoring of radionuclide beams.