Simulation analysis of minimum detectable activity concentration of scintillating optical fiber array detector]

Simulation analysis of minimum detectable activity concentration of scintillating optical fiber array detector]

Citation

吕汶辉, 杨永新, 衣宏昌, 曾志, 刘翠红, 陈迎锋, 丁雄, & 商学利. (2022). 闪烁光纤阵列探测器最小可探测活度浓度仿真计算 [Simulation analysis of minimum detectable activity concentration of scintillating optical fiber array detector]. 哈尔滨工程大学学报 (Journal of Harbin Engineering University), 43(11), 1636-1641.
DOI:10. 11990 / jheu. 202206055 
Network publishing address: https://kns.cnki.net/kcms/detail/23.1390.U.20220905.1223.002.html


Keywords

  • scintillating fiber
  • Monte Carlo simulation
  • online detection
  • minimum detectable activity concentra- tion
  • detectionefficiency
  • fluorescence 

Brief

The article simulates and analyzes the minimum detectable activity concentration of a scintillating fiber array detector for low-level radioactivity measurement in water by evaluating its detection efficiency for beta particles and background counting rate from sources like cosmic rays and shielding material.

Summary

This paper uses Monte Carlo simulations to evaluate a scintillating fiber array detector designed for online measurement of low-level radioactivity in water. The study determined the detector's minimum detectable activity concentration by analyzing its beta particle detection efficiency and background count rate from sources like cosmic rays, finding it can reach 1.0 Bq/L in 6 minutes and 0.457 Bq/L in 30 minutes, demonstrating its potential for rapid and sensitive water quality monitoring.

Origin: https://kns.cnki.net/kcms/detail/23.1390.U.20220905.1223.002.html

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