闭路循环氡子体测试装置的设计与工况模拟

doi:10.27045/j.1000-8187.202605013

Abstract

Abstract: This study presents a closed-loop radon progeny test system for evaluating radon compensation performance and establishing a systematic method for controlling the test conditions. Steady-state and transient simulations were conducted to determine how key parameters affect the target operating conditions. A sequential three-variable control procedure was proposed. The aerosol particle concentration (C_p), filtration flow rate (Q), and radon concentration (C_Rn) were adjusted in this order. The procedure was used to determine control schemes and parameter settings for multiple target conditions. These conditions covered equilibrium factors (F) from 0.10~0.35, equilibrium equivalent concentrations (EEC) from 140 to 700 Bq·m^-3, and unattached fractions (f_p) from 15% to 50%. These ranges generally cover typical testing requirements and provide practical guidance for controlling radon compensation tests.

Key words: radon progeny, aerosol, equilibrium equivalent concentration, equilibrium factor, unattached fraction

CLC Number:

TL811

YANG Yi, CHANG Xiang, ZHANG Fuguo, ZHANG Yanting, MA Tao, SHANG Jie. Design and operating condition simulation of a closed-loop radon progeny test system[J].RADIATION PROTECTION, 2026, 46(5): 486-493.

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Design and operating condition simulation of a closed-loop radon progeny test system

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