Journal of Radiation Protection and Research

The Korean Association for Radiation Protection (대한방사선방어학회)
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Impurity Analysis of Domestic $MnSO_4{\cdot}H_2O$ Introduced to Manganese Bath Method

망간용액조방법에 도입되는 국산 황산망간중의 불순물 분석

  • Hwang, Sun-Tae (Radiation Laboratory, Korea Standards Research Institute) ;
  • Lee, Kyung-Ju (Radiation Laboratory, Korea Standards Research Institute) ;
  • Choi, Kil-Oung (Radiation Laboratory, Korea Standards Research Institute) ;
  • Lee, Kwang-Woo (Analytical Chemistry Laboratory, Korea Standards Research Institute) ;
  • Woo, Jin-Chun (Analytical Chemistry Laboratory, Korea Standards Research Institute) ;
  • Lee, Ki-Bum (Analytical Chemistry Laboratory, Korea Standards Research Institute)
  • 황선태 (한국표준연구소.방사선연구실) ;
  • 이경주 (한국표준연구소.방사선연구실) ;
  • 최길용 (한국표준연구소.방사선연구실) ;
  • 이광우 (한국표준연구소.분석화학연구실) ;
  • 우진춘 (한국표준연구소.분석화학연구실) ;
  • 이기범 (한국표준연구소.분석화학연구실)
  • Published : 1987.06.15
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Abstract

The manganous sulphate bath method is widely used for measurements of neutron source strength. In this study, the analytical chemistry method based on the argon supported inductively coupled plasmas emission spectrometry was used for examining the impurity contents of domestic $MnSO_4{\cdot}H_2O$ the product of Chemical Industry, to induce $^{55}Mn(n,{\gamma})^{56}$ Mn reactions. From the analytical results, mainly potassium, cobalt, and zinc as well as trace amounts of cadmium, lithium, etc. have turned out to be the relevant impurities absorbing the neutrons, and the fraction of neutrons absorbed by the total impurities was calculated. The value obtained was about 1.37% of the neutrons captured by manganese.

중성자 선원의 강도를 측정하기 위하여 흔히 황산망간용액조 방법이 사용되고 있다. 본 연구에서는 $^{55}Mn(n,{\gamma})^{56}Mn$ 반응에 도입되는 국산 $MnSO_4{\cdot}H_2O$(동양화학제품)중에 불순들 성분을 규명하기 위하여 Ar-ICP 플라즈마방출 분광계측에 의한 분석화학 방법이 사용되었다. 분석결과로부터 주로 Co, Zn과 미량의 Cd, Li 등이 관련 불순물로서 중성자를 흡수하는 것으로 판명되었으며 전체 불순물에 의한 중성자 흡수 비율은 $^{55}Mn$에 의하여 포획되는 중성자 수의 약 1.37%로 산정되었다.

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