福州乌鸦嘴泉水氡恒温脱气观测的实验研究

Experimental Study of Thermostat Degassing Observation of Water Radon of Wuyazui Spring in Fuzhou City

在日常观测中发现水氡水样在水温相对高时进行脱气,水氡测值也相对较高,反之氡值相对较低。特别在夏季和冬季室外温度变化比较大,水样水温变化也较大,在不同的水样水温条件下脱气时,对水氡测值影响也不相同。为了分析相同水样在不同水温条件脱气对水氡测值影响变化,进行一系列的比测实验,采用恒温水浴来控制相同水样在不同水温(20℃、25℃、30℃)条件下进行脱气对比观测实验,试图找出相对于对水氡测值影响较小,较为稳定水样温度或温度区间条件下进行恒温脱气的观测方法。

In daily observation, the author finds that water radon measurement value is positively correlated with the degassing temperature of water samples of water radon. Especially in summer and winter, the larger the outdoor temperature changes, the larger the water temperature of water sample changes, degassing in different water temperature, the water radon measurement values are not the same. In order to analyze the same samples with degassing at different temperature, the paper dose series of experiments by using the constant temperature water bath（ 20℃, 25℃, 30 ℃）, and tries to find out the observation method, which can be using under stable temperature or temperature range and has little influence to water radon measurement value.