Deposition/erosion and H/D retention characteristics in gaps of PFCs in KSTAR studied by cavity technique

Suk Ho Hong; Sang Joon Park; Jae Myung Choe; Young Mu Jeon; Seung Jae Yang; Sun Taek Lim; Sooseok Choi; Young Gil Jin; Chong Rae Park; Gon Ho Kim

doi:10.1016/j.jnucmat.2013.01.148

Deposition/erosion and H/D retention characteristics in gaps of PFCs in KSTAR studied by cavity technique

Suk Ho Hong, Sang Joon Park, Jae Myung Choe, Young Mu Jeon, Seung Jae Yang, Sun Taek Lim, Sooseok Choi, Young Gil Jin, Chong Rae Park, Gon Ho Kim

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13 Scopus citations

Abstract

Stainless steel coupons with cavity structure were installed at different poloidal locations in KSTAR during 2009 campaign to study deposition and H/D retention inside the gap of PFCs. The deposition profiles at different poloidal locations indicate that the incoming species have high surface loss probability (β) and they are probably charge exchange neutral particles. The (H + D)/C ratios of layers inside the coupons were in a range from 0.04 to 0.37 at different poloidal locations which might be caused by different contribution of different hydrocarbon species. Campaign integrated, time averaged net C, H/D atom flux density towards outer walls are in the similar range with other carbon dominated machines.

Original language	English
Pages (from-to)	S698-S706
Journal	Journal of Nuclear Materials
Volume	438
Issue number	SUPPL
DOIs	https://doi.org/10.1016/j.jnucmat.2013.01.148
State	Published - 2013
Externally published	Yes

Bibliographical note

Funding Information:
This study is supported by the Korean Ministry of Education, Science and Technology under the KSTAR Project and is partially supported by the National Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (Grant No. 2010-0020044, Fusion Core Research Center Program).

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10.1016/j.jnucmat.2013.01.148

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@article{ed5a6c91e5574c648c363db0acd4ae4d,

title = "Deposition/erosion and H/D retention characteristics in gaps of PFCs in KSTAR studied by cavity technique",

abstract = "Stainless steel coupons with cavity structure were installed at different poloidal locations in KSTAR during 2009 campaign to study deposition and H/D retention inside the gap of PFCs. The deposition profiles at different poloidal locations indicate that the incoming species have high surface loss probability (β) and they are probably charge exchange neutral particles. The (H + D)/C ratios of layers inside the coupons were in a range from 0.04 to 0.37 at different poloidal locations which might be caused by different contribution of different hydrocarbon species. Campaign integrated, time averaged net C, H/D atom flux density towards outer walls are in the similar range with other carbon dominated machines.",

author = "Hong, {Suk Ho} and Park, {Sang Joon} and Choe, {Jae Myung} and Jeon, {Young Mu} and Yang, {Seung Jae} and Lim, {Sun Taek} and Sooseok Choi and Jin, {Young Gil} and Park, {Chong Rae} and Kim, {Gon Ho}",

note = "Funding Information: This study is supported by the Korean Ministry of Education, Science and Technology under the KSTAR Project and is partially supported by the National Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (Grant No. 2010-0020044, Fusion Core Research Center Program).",

year = "2013",

doi = "10.1016/j.jnucmat.2013.01.148",

language = "English",

volume = "438",

pages = "S698--S706",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Deposition/erosion and H/D retention characteristics in gaps of PFCs in KSTAR studied by cavity technique

AU - Hong, Suk Ho

AU - Park, Sang Joon

AU - Choe, Jae Myung

AU - Jeon, Young Mu

AU - Yang, Seung Jae

AU - Lim, Sun Taek

AU - Choi, Sooseok

AU - Jin, Young Gil

AU - Park, Chong Rae

AU - Kim, Gon Ho

N1 - Funding Information: This study is supported by the Korean Ministry of Education, Science and Technology under the KSTAR Project and is partially supported by the National Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (Grant No. 2010-0020044, Fusion Core Research Center Program).

PY - 2013

Y1 - 2013

N2 - Stainless steel coupons with cavity structure were installed at different poloidal locations in KSTAR during 2009 campaign to study deposition and H/D retention inside the gap of PFCs. The deposition profiles at different poloidal locations indicate that the incoming species have high surface loss probability (β) and they are probably charge exchange neutral particles. The (H + D)/C ratios of layers inside the coupons were in a range from 0.04 to 0.37 at different poloidal locations which might be caused by different contribution of different hydrocarbon species. Campaign integrated, time averaged net C, H/D atom flux density towards outer walls are in the similar range with other carbon dominated machines.

AB - Stainless steel coupons with cavity structure were installed at different poloidal locations in KSTAR during 2009 campaign to study deposition and H/D retention inside the gap of PFCs. The deposition profiles at different poloidal locations indicate that the incoming species have high surface loss probability (β) and they are probably charge exchange neutral particles. The (H + D)/C ratios of layers inside the coupons were in a range from 0.04 to 0.37 at different poloidal locations which might be caused by different contribution of different hydrocarbon species. Campaign integrated, time averaged net C, H/D atom flux density towards outer walls are in the similar range with other carbon dominated machines.

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U2 - 10.1016/j.jnucmat.2013.01.148

DO - 10.1016/j.jnucmat.2013.01.148

M3 - Article

AN - SCOPUS:84885484420

SN - 0022-3115

VL - 438

SP - S698-S706

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - SUPPL

ER -

Deposition/erosion and H/D retention characteristics in gaps of PFCs in KSTAR studied by cavity technique

Abstract

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