(A) study on the prediction of tritium behavior in rice plant after a short-term exposure of HTO = HTO 급성 피폭 후 벼 내에서의 삼중수소 거동 예측에 관한 연구

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In many Asian countries including Korea, rice is a very important food crop. Its grain is consumed by humans and its straw is used to feed animals. In Korea, there are four CANDU type reactors that release relatively large amounts of tritium into the environment. Since 1997, KAERI (Korea Atomic Energy Research Institute) has carried out the experimental studies to obtain domestic data for various parameters concerning the direct contamination of plant. In this study, the behavior of tritium in the rice plant is predicted and compared to the measurement performed at KAERI. Using the conceptual model of the soil-plant-atmosphere tritiated water transport system which was suggested by Charles E. Murphy, tritium concentrations in the soil and in the leaves relative to time were derived. For the effect of tritium concentration in the soil, the tritium concentrations in leaves are described by a double exponential model. On the other hand if the tritium concentration in the soil is disregarded, the tritium concentration in leaves is described by a single exponential term as explained in other models (e.g. Belot’s or STAR-H3 model). Also concentration of organically bound tritium in leaves is predicted, conformed, and compared to the measurements. These results can be used to predict the tritium concentration in the rice plant at a field around the site and corresponding the ingestion dose following the release of tritium to the environment.
Advisors
Lee, Kun-Jairesearcher이건재researcher
Description
한국과학기술원 : 원자력양자공학과,
Publisher
한국과학기술원
Issue Date
2002
Identifier
174281/325007 / 020003334
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 원자력양자공학과, 2002.2, [ ix, 59 p. ]

Keywords

TFWT; accidiental exposure; tritium; OBT; 조직결합수; 조직자유수; 급성피폭; 삼중수소

URI
http://hdl.handle.net/10203/49449
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=174281&flag=dissertation
Appears in Collection
NE-Theses_Master(석사논문)
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