• 제목/요약/키워드: Radioactive Inventory

검색결과 65건 처리시간 0.036초

방사성폐기물 신분류기준을 고려한 중저준위 방사성폐기물 처분시설의 핵종재고량 예측 (Prediction of Radionuclide Inventory for the Low- and Intermediate-Level Radioactive Waste Disposal Facility by the Radioactive Waste Classification)

  • 정강일;정노겸;문영표;정미선;박진백
    • 방사성폐기물학회지
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    • 제14권1호
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    • pp.63-78
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    • 2016
  • To meet nuclear regulatory requirements, more than 95% individual radionuclides in the low- and intermediate-level radioactive waste inventory have to be identified. In this study, the radionuclide inventory has been estimated by taking the long-term radioactive waste generation, the development plan of disposal facility, and the new radioactive waste classification into account. The state of radioactive waste cumulated from 2014 was analyzed for various radioactive sources and future prospects for predicting the long-term radioactive waste generation. The predicted radionuclide inventory results are expected to contribute to secure the development of waste disposal facility and to deploy the safety case for its long-term safety assessment.

Application of Dose to Curie Conversion Method using MCNP-4C code for the evaluation of Radionuclide Inventory in a Radioactive Waste Container

  • Sang-hee, Kang;Hwang, Ki-ha;Lee, Sang-chul;Lee, Kun-jai;Kim, Tae-wook;Kim, Kyoung-deok;Herr, Young-hoi;Song, Myung-jae
    • 한국방사성폐기물학회:학술대회논문집
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    • 한국방사성폐기물학회 2004년도 학술논문집
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    • pp.174-174
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    • 2004
  • It is necessary to perform the radionuclide inventory assessment for the disposal of low and intermediate radioactive waste containers. The $\gamma$ nuclide analyzer can be used for the assessment of containers. However, if the radioactivity in the containers is extremely low or high, radionuclide inventory of the containers can not be evaluated properly. Also, gamma scanning method is time consuming and has economical burden to the utilities.(omitted)

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처분방사능량제한치를 고려한 중저준위 방사성폐기물 처분시설의 핵종재고량 산정(안) (Prediction of Radionuclide Inventory for Low- and Intermediate-Level Radioactive Waste by Considering Concentration Limit of Waste Package)

  • 정강일;김민성;정노겸;박진백
    • 방사성폐기물학회지
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    • 제15권1호
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    • pp.65-82
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    • 2017
  • 방사성폐기물 발생기관의 가용데이터를 기반으로 산출된 핵종재고량을 적용하여 예비안전성평가를 수행한 결과 처분안전성과 운영측면에서 많은 어려움이 예상됨을 확인하였다. 본 논문에서는 전체처분시설 예비안전성평가를 수행하였으며, 평가결과 성능목표치 초과핵종에 대해 방사능량이 큰 비중을 차지하는 단위포장물을 선별하고, 높은 표면선량률의 포장물을 처분대상에서 제외하는 방식으로 처분시설의 처분방사능량제한을 도입하였다. 처분방사능량제한은 안전기준 만족을 위한 처분시설별 인수기준과 처분기준 설정에 기초자료로 활용할 것이며, 경주 처분시설의 안전한 종합개발계획수립 및 처분시설의 안전성 최적화를 위한 Safety Case 구축에 기여할 것으로 판단된다.

Initial Release of Nuclides from Spent PWR Fuels

  • Kim, S. S.;K. S. Chun;Kim, Y. B.;Park, J. W.
    • 한국방사성폐기물학회:학술대회논문집
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    • 한국방사성폐기물학회 2004년도 Proceedings of the 4th Korea-China Joint Workshop on Nuclear Waste Management
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    • pp.238-244
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    • 2004
  • The relationship between the leaching and gap inventory of spent fuel has been studied. When a specimen of J44H08 spent PWR fuel with 38 GWD/MTU has been leached in the synthetic granitic groundwater in Ar atmosphere, the released fraction of cesium was increased rapidly up to 0.7% at around 500 days and stayed below 0.8% until 3 years. This 0.7% of cesium might be released from the gap in this fuel. The measurement of gap inventory with C15I08 spent PWR fuel, having 35 GWD/MTU and 0.22% of fission gas release, was also determined near 0.6% for the cesium, which is a similar fraction of cesium released from the leaching experiment with J44H08 fuel. Its gap inventories of strontium and iodine were about 0.03 and less than 0.2% respectively. Respective fractions of cesium and strontium in grain boundary of C15I08 were 0.78, 0.09%.

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국내 천층처분시설 방사성폐기물 수용요건 및 이행체계 수립 (Establishment of Radioactive Waste Acceptance Requirements for Near-Surface Repository)

  • 정찬우;안상면;이윤근;석태원;박상훈
    • 한국방사성폐기물학회:학술대회논문집
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    • 한국방사성폐기물학회 2003년도 가을 학술논문집
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    • pp.261-265
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    • 2003
  • 현행 중ㆍ저준위방사성폐기물 인도규정의 개정에 초점을 맞추어 국내 천층처분시설에 대한 폐기물 수용요건의 개발 및 이행 방안을 제시한다. 개정안은 방사성폐기물 세부분류, 표층처분 방사능농도제한, 핵종 inventory 평가 등에 관한 구체적인 기준을 담고 있으며, 그 이행을 위하여 처분전 폐기물관리, 처분시설 안전성평가, 처분시스템 등과의 합리적인 연계를 모색한다.

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