Under High Radon Environment α Energy Spectrum Analysis

Abstract

Energy spectrum processing technology is one of the key technologies to realize the rapid monitoring of artificial radioactive aerosol. At present, most commercial aerosol continuous monitoring equipment are suitable for the measurement of artificial radioactive aerosol under natural radon background. The energy spectrum processor technology used is also aimed at the situation of low radon background, which is not suitable for the measurement of artificial radioactive aerosol in high radon environment. In this paper, the combination of energy spectrum fitting (fitting method) and variable tailing proportional coefficient method (ratio deduction method) is used, and the program written on MATLAB platform is used to analyze α by deducting radon daughters in the energy spectrum, the energy spectrum measurement in high radon environment can be realized. By analyzing the energy spectrum of mixed samples of U and Ra with different concentrations and comparing with the measurement results after cooling, it shows good consistency, which verifies the feasibility of understanding the spectrum method and provides a reference for the energy spectrum analysis in high radon environment α Energy spectrum analysis provides an important technical means.