HIGH RADON CONCENTRATION SEISMIC MONITORING SPRING IN STANDARD INSTRUMENT RESEARCH ON APPLICATION OF CALIBRATION METHOD
Based on New 09 spring,New 10 spring and New 15 spring with water radon concentra-tion of 20 000～100 000 Bq·m-3,the standard instrument transfer calibration experiment was car-ried out by using the international scale reference device Alpha GUARD radon measuring instrument and its water radon measuring component.The relative errors of calibration K values were 3.60％,-0.81％and 2.09％,respectively.The comparison between the experimental results and the cali-bration results of radon gas solid source shows that the water samples with water radon concentration above 20 000 Bq·m-3 can be tested by the new calibration method of standard instrument,and the use of spring water with different water radon concentration will not affect the accuracy of the calibra-tion results.The Alpha GUARD radon measuring instrument can be used as a standard instrument to calibrate the FD-125 radon and thorium analyzer by using the daily monitoring spring with high ra-don concentration in the Xinjiang Seismic Underground Fluid Comprehensive Station,so as to re-place the calibration of solid radon source.This study provides data support for the operation techni-cal regulations and promotion trial of the new calibration method for radon observation in seismic mo-nitoring.
万方数据
维普
