Fundamental research on a cerenkov radiation sensor based on optical glass for detecting beta-rays

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• 作者：Jae Seok Kim (1)
  Kyoung Won Jang (1)
  Sang Hun Shin (1)
  Dayeong Jeon (1)
  Seunghan Hong (1)
  Hyeok In Sim (1)
  Seon Geun Kim (1)
  Wook Jae Yoo (1)
  Bongsoo Lee (1)
  Joo Hyun Moon (2)
  Byung Gi Park (3)
  
  1. School of Biomedical Engineering ; BK21 Plus Research Institute of Biomedical Engineering ; Konkuk University ; Chungju ; 380-701 ; Korea
  2. Department of Nuclear & Energy System Engineering ; College of Natural Science ; Dongguk University-Gyeongju ; Gyeongju ; 780-714 ; Korea
  3. Department of Energy & Environment Engineering ; College of Engineering ; Soonchunhyang University ; Asan ; 336-745 ; Korea
  
• 关键词：Cerenkov radiation ; Cerenkov radiator ; Optical glass ; MCNP ; Beta ; ray
• 刊名：Journal of the Korean Physical Society
• 出版年：2015
• 出版时间：January 2015
• 年：2015
• 卷：66
• 期：1
• 页码：51-54
• 全文大小：495 KB
• 参考文献：1. H. H. Ross, Anal. Chem. 41, 1260 (1969). CrossRef
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• 刊物主题：Physics, general; Theoretical, Mathematical and Computational Physics; Particle and Nuclear Physics;
• 出版者：Springer Netherlands
• ISSN：1976-8524

文摘

In this study, a Cerenkov radiation sensor for detecting low-energy beta-particles was fabricated using various Cerenkov radiators such as an aerogel and CaF2-, SiO2-, and Al2O3-based optical glasses. Because the Cerenkov threshold energy (CTE) is determined by the refractive index of the Cerenkov radiator, the intensity of Cerenkov radiation varies according to the refractive indices of the Cerenkov radiators. Therefore, we measured the intensities of Cerenkov radiation induced by beta-particles generated from a radioactive isotope as a function of the refractive indices of the Cerenkov radiators. Also, the electron fluxes were calculated for various Cerenkov radiators by using a Monte Carlo N-Particle extended transport code (MCNPX) to determine the relationship between the intensities of the Cerenkov radiation and the electron fluxes.