(A) study on the improved method in radwaste drum assay using dose to curie conversion method = 선량 대 방사능 환산 방법을 이용한 방사성 폐기물 드럼 평가의 향상 방안

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 463
  • Download : 0
Radionuclide activity of low and intermediate radioactive waste drums must be assayed prior to disposal. Some drums can not be assessed by the γ nuclide analyzer because of technical difficulties, time and cost. One alternative method, the dose to curie conversion (DTC) method, is used to assay the radionuclide activity in the waste drum. The uncertainties - the voids in the drum, the chemical composition and density of the contained material and the source distribution in the drum - associated with the DTC method were evaluated by using MCNP-4C code. Dose rate was sensitive to the density of the waste and the source distribution in the drum. It was insensitive to the voids in the drum and the chemical composition of the waste. For more accurate assay, the density variation and the source distribution were considered. The results of this work show a decrease in the error ratio from -69% to -31% for the density variation method and from -52% to -33% for the source distribution method. Applying both methods, the error ratio of assessment was decreased from -69% to 9% when compared with the existing method. The results of verification for the improved method using the experimental results indicate that the error ratio of assessment was decreased from -54% to -12.7% when compared with the existing method.
Advisors
Lee, Kun-Jairesearcher이건재researcher
Description
한국과학기술원 : 원자력및양자공학과,
Publisher
한국과학기술원
Issue Date
2005
Identifier
243547/325007  / 020023902
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 원자력및양자공학과, 2005.2, [ vi, 49 p. ]

Keywords

DAW; radwaste drum; Dose to curie conversion method; mcnp lectivity; MCNP코드; 잡고체; 방사성폐기물 드럼; 선량 대 방사능 환산 방법

URI
http://hdl.handle.net/10203/49488
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=243547&flag=dissertation
Appears in Collection
NE-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0