SEISMOLOGY AND GEOLOGY ›› 1982, Vol. 4 ›› Issue (2): 50-52.

• Brief Report • Previous Articles     Next Articles

AN EXPERIMENT ON MEASURING RADON BY CONDENSATIONAL MEANS

Zhang Peiren, Wang Jihua, Luo Guangwei, Sun Fengmin   

  1. Center of Earthquake Analysis and Prediction, National Bureau of Seismology
  • Received:1980-08-31 Online:1982-06-02 Published:2009-11-25

冷凝浓缩法测氡实验

张培仁, 王基华, 罗光伟, 孙凤民   

  1. 国家地震局分析预报中心

摘要: 超低温冷凝浓缩法则氡(图1)是将水样中的氡气在负压下被载气(空气)携带通过系统到达浸于液氮中的U形玻璃管内。由于液氮的温度为-196℃,氡的冰点为-71℃,故氡气将在此冷凝成固态被滞留下来。为使氡气更充分地冷凝,在长50厘米,内径5毫米的U形玻璃管中装填直径4毫米的钢珠以加大接触面积。