介绍了静电收集探测室的性能 ,利用此静电收集探测室对氡衰变的 2 18Po所放出的 α粒子脉冲计数进行测量。实验表明 :这种静电收集探测室对氡的变化有快的反应 ,能实现氡的无源连续测量 The performance of the electrostatic collection probe room is introduced, and the α particle pulse count released by 2 18 Po of radon decay is measured by this electrostatic collection probe room. Experiments show that: This collection of electrostatic collection of rapid changes in radon response, to achieve a passive continuous measurement of radon