Determination of Plutonium in HANARO Irradiated Fuel by IDMS

동위원소희석 질량분석법에 의한 조사 후 하나로 핵연료 중 Pu 정량

  • Jeon, Young Shin (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute) ;
  • Son, Sae Chul (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute) ;
  • Kim, Jung Suk (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute)
  • 전영신 (한국원자력연구소, 원자력화학연구부) ;
  • 손세철 (한국원자력연구소, 원자력화학연구부) ;
  • 김정석 (한국원자력연구소, 원자력화학연구부)
  • Received : 2003.02.14
  • Accepted : 2003.04.09
  • Published : 2003.06.25

Abstract

Two methods, IDMS (Isotope Dilution Mass Spectrometry) and controlled potential coulometry are compared by the determination of Pu for the NBL, CRM No.122, $PuO_2$. The recovery of Pu was found to be $1.002176{\pm}0.000452$ within the relative standard deviation of 0.045% (95% conf. level) although a small size of sample ($0.9{\mu}g$-Pu) was used in IDMS. The recovery using controlled potential coulometry were obtained in the range of 0.9923~0.9960. The analytical results of IDMS and controlled potential coulometry were good agreement within 0.6~1%. Base on these experiment results, The plutonium in HANARO irradiated fuel rod that separated portion of top, middle, and bottom were determined. The measured values of Pu are 1.155 mg, 2.483 mg and 1.920 mg in one gram of sample(fuel+clad), respectively.

Keywords

plutonium;IDMS;irradiated fuel;coulometry

Acknowledgement

Supported by : 과학기술부

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