DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bae, YS | - |
dc.contributor.author | Cho, MH | - |
dc.contributor.author | Namkung, W | - |
dc.contributor.author | Bernabei, S | - |
dc.contributor.author | Ellis, R | - |
dc.contributor.author | Wilson, J | - |
dc.contributor.author | Hosea, J | - |
dc.contributor.author | Park, H | - |
dc.contributor.author | 조무현 | - |
dc.date.accessioned | 2016-04-01T01:45:26Z | - |
dc.date.available | 2016-04-01T01:45:26Z | - |
dc.date.issued | 2006-01 | - |
dc.identifier.issn | 0374-4884 | - |
dc.identifier.other | 2007-OAK-0000006497 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/23635 | - |
dc.description.abstract | A 5 GHz Lower Hybrid Current Drive (LHCD) system with 2 MW is under development for the steady-state operations of the KSTAR. The present design of fully active waveguide launcher gives very good spectral directivity of more than 90 % for the phase shift of 90 degrees and a wider N-parallel to range of 1.4 to 3.6 with a width Delta N-parallel to = 0.54. For the steady-state operations of the KSTAR, a Glidcop/SS sandwiched grill is proposed with consideration of heat and disruption loads. A PAM (Passive-Active Multi-junction)-type launcher is also studied for the possibility of use for the KSTAR. The PAM-type launcher provided good coupling properties even at lower edge densities in FTU 8 GHz PAM launcher tests. However, it gives a lower current drive efficiency compared with the conventional grill because of reduced directivities. The Passive/Active grill has 30 % less directivity than the Fully Active grill from the characteristic studies on the directivity and coupling. On the other hand, it gives a good coupling property with weak dependence on the phase shift between adjacent waveguides. | - |
dc.description.statementofresponsibility | X | - |
dc.publisher | KOREAN PHYSICAL SOC | - |
dc.subject | KSTAR | - |
dc.subject | lower-hybrd | - |
dc.subject | launcher | - |
dc.subject | WAVEGUIDE ARRAY | - |
dc.subject | TOKAMAK | - |
dc.subject | PLASMA | - |
dc.subject | EDGE | - |
dc.title | Launcher study for KSTAR 5 GHz LHCD system | - |
dc.type | Conference | - |
dc.contributor.college | 물리학과 | - |
dc.author.google | Bae, YS | - |
dc.author.google | Cho, MH | - |
dc.author.google | Namkung, W | - |
dc.author.google | Bernabei, S | - |
dc.author.google | Ellis, R | - |
dc.author.google | Wilson, J | - |
dc.author.google | Hosea, J | - |
dc.author.google | Park, H | - |
dc.relation.volume | 49 | - |
dc.contributor.id | 10151947 | - |
dc.publisher.location | KO | - |
dc.relation.journal | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Conference Papers | - |
dc.type.docType | Proceedings Paper | - |
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