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Calculation of intake retention functions for intake of activated dusts in the fusion reactors

Title
Calculation of intake retention functions for intake of activated dusts in the fusion reactors
Author
이재기
Keywords
Activated dusts; Intake retention function; Excretion function; Biokinetic model; Contaminated wound model
Issue Date
2013-10
Publisher
ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Citation
Proceedings of the 27th Symposium On Fusion Technology2013,88(99-10), p2714-2718
Abstract
Activated dusts will be one of the main source terms to cause occupational radiation exposure during maintenance inside the plasma chamber or in accident at fusion reactors such as ITER and fusion DEMO reactors. In order to estimate the intake of activated dusts and committed dose from these, intake retention functions and daily excretion functions are necessarily needed. Since the activated dusts have not been considered in fission reactors, however, the intake retention functions and excretion functions have not been calculated. In this study, thus, we calculated the whole-body retention functions and excretion functions for activated dusts. Radioactive tantalum, tungsten, and rhenium which are produced from tungsten-based divertors were selected as concerned nuclides. Since contaminated wound can occur from explosion accidents, intake from contaminated wound was also included in intake routes as well as inhalation and ingestion. Birchall's algorithm was used to calculate the retention and excretion functions and the functions were fitted as sum of exponential terms using ORIGIN software. The calculated functions in this study will be usefully used to estimate the intake of the activated dusts when the ITER and fusion DEMO reactors start to operate. (C) 2013 Elsevier B.V. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0920379613001762?via%3Dihubhttp://hdl.handle.net/20.500.11754/42241
ISSN
0920-3796
DOI
10.1016/j.fusengdes.2013.02.061
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > NUCLEAR ENGINEERING(원자력공학과) > Articles
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