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本文介绍了ＱＬＭ－０１型放射性气溶胶连续监测仪的性能指标、结构原理及灵敏度估算等重要问题。该监测仪能连续自动地对空气中的α气溶胶和β气溶胶同时进行监测，在每３０ｍｉｎ报告一次监测结果的情况下，其最小可探测限：对于α气溶胶为０．３５Ｂｑ／ｍ３；对于β气溶胶为２０Ｂｑ／ｍ３；在每６０ｍｉｎ报告一次监测结果的情况下，其最小可探测限还可降低。本文还介绍了消除干扰的方法及由此引起的监测仪监测灵敏度的正确确定和估算方面的问题。
This article describes the QLM-01 radioactive aerosol continuous monitor performance indicators, structural principles and sensitivity estimation and other important issues. The monitor can continuously and automatically monitor α-aerosol and β-aerosol in the air at the same time. When the monitoring result is reported every 30min, the minimum detectable limit is 0.35Bq / m3 for α-aerosol. For beta aerosols 20Bq / m3; in the case of monitoring results reported once every 60min, its minimum detectable limit can be reduced. This article also describes the methods to eliminate interference and the resulting problems in the proper determination and estimation of monitor sensitivity.