A Practical and Simple Method of Self-absorption Correction for Environmental Samples

실용적이고 간단한 환경시료의 감마핵종 자체흡수보정 방법

  • Lee, Wan-No (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Lee, Haeng-Pil (Water & Sediment Analysis Team, Korea Institute of Coastal Ecology, Inc) ;
  • Chung, Kun-Ho (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Cho, Young-Hyun (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Choi, Geun-Sik (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Lee, Chang-Woo (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Chung, Hyung-Wook (Department of Food Evaluation, Korea Food and Drug Administration) ;
  • Lee, Eun-Ju (Department of Food Evaluation, Korea Food and Drug Administration) ;
  • Sho, You-Sup (Department of Food Evaluation, Korea Food and Drug Administration) ;
  • Lee, Jong-Ok (Department of Food Evaluation, Korea Food and Drug Administration)
  • 이완로 (한국원자력연구소 원자력환경연구부) ;
  • 이행필 (한국연안환경생태연구소 수질.퇴적물 분석팀) ;
  • 정근호 (한국원자력연구소 원자력환경연구부) ;
  • 최근식 (한국원자력연구소 원자력환경연구부) ;
  • 조영현 (한국원자력연구소 원자력환경연구부) ;
  • 이창우 (한국원자력연구소 원자력환경연구부) ;
  • 정형욱 (식품의약품안전청 식품평가부) ;
  • 이은주 (식품의약품안전청 식품평가부) ;
  • 소유섭 (식품의약품안전청 식품평가부) ;
  • 이종옥 (식품의약품안전청 식품평가부)
  • Published : 2006.03.31

Abstract

A self-absorption correction is important issue for the exact radioactivity determination of gamma emitting radionuclides in environmental samples which have the range of apparent density from $0.3g/cm^3$ up to $1.5g/cm^3$. In this paper, a practical and simple method without radioactive standard solutions having various densities is proposed for the self-absorption correction of environmental samples by a developed outside beaker surrounding Marinelli beaker. For the densities of 0.8, 1.0, $1.3g/cm^3$, the corrected efficiencies by the new method and the measured those by radioactive standard solutions of the three densities showed good agreement within 4 %.

References

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