Thermographic studies of outer target heat fluxes on KSTAR

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/486208.do
DOI
10.1016/j.nme.2016.12.019
Title
Thermographic studies of outer target heat fluxes on KSTAR
abstract
A new infra-red (IR) thermography system with high spatial resolution has been installed on KSTAR and is now mainly applied to measure the outer divertor heat load profile. The first measurement results of the outer divertor heat load profiles between ELMs have been applied to characterize the inter-ELMs outer divertor heat loads in KSTAR H-mode plasmas. In particular, the power decay length (lambda(q)) of the divertor heat load profile has been determined by fitting the profile to a convolution of an exponential decay and a Gaussian function. The analysis on the power decay length shows a good agreement with the recent multi-machine.q scaling, which predicts lambda(q) of the inter-ELMs divertor heat load to be similar to 1 mm under the standard H-mode scenario in ITER. The divertor IR thermography system has also successfully measured the strike point splitting of the outer divertor heat flux during the application of resonant magnetic perturbation (RMP) fields. In addition, it has provided a clear evidence that the strike point splitting pattern depends on the RMP fields configuration. (C) 2016 Elsevier Ltd.
provenance
Made available in Cube on 2018-09-28T16:01:26Z (GMT). No. of bitstreams: 0
language
English
author
Lee, H. H.
Pitts, R. A.
Kang, C. S.
Oh, S. T.
Bak, J. G.
Hong, S. H.
Wi, H. M.
Kim, Y. S.
Kim, H. S.
Seo, D. C.
Kim, H. T.
Kim, K. M.
orcid
Kim, Hong-Tack/0000-0003-2152-6979
accessioned
2018-09-28T16:01:26Z
available
2018-09-28T16:01:26Z
issued
2017
citation
NUCLEAR MATERIALS AND ENERGY(12)
issn
2352-1791
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/486208.do
Funder
과학기술정보통신부
Funding Program
국가핵융합연구소연구운영비지원
Project ID
1711062877
Jurisdiction
Rep.of Korea
Project Name
KSTAR Experimental Collaboration and Fusion Plasma Research
rights
openAccess
type
article


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