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Third harmonic ICRF heating in LHD hydrogen experiments
| Content Provider | Scilit |
|---|---|
| Author | Kamio, Shuji Seki, Ryosuke Seki, Tetsuo Saito, Kenji Kasahara, Hiroshi Sakakibara, Satoru Nomura, Gorou Mutoh, T. |
| Copyright Year | 2018 |
| Description | Journal: Nuclear Fusion The ICRF heating power injection in the hydrogen experiment in LHD was demonstrated after upgrade of ICRF antennas. The ICRF wave couples and accelerates the energetic particles injected by perpendicular-NBIs with 40 keV. The simulation by the MORH code shows the existence of the energetic particles around the ICRF third harmonic resonance layers. As the result of ICRF heating power deposition, the beta value increased by 0.2% in absolute beta mainly due to the increased energetic particle content. The increase of the energetic ions particularly around 60 keV, which should be accelerated by the ICRF heating, is observed. The ICRF heating efficiency was approximately 30-50% estimated from the break-in-slope analysis at the turn off timing of ICRF power by the stored energy measured by diamagnetic loops. This increase of the stored energy is mostly the contribution of the increased energetic particles. The heating efficiency increases as the density increases. |
| Related Links | http://iopscience.iop.org/article/10.1088/1741-4326/aadbb4/pdf |
| ISSN | 00295515 |
| e-ISSN | 17414326 |
| DOI | 10.1088/1741-4326/aadbb4 |
| Journal | Nuclear Fusion |
| Issue Number | 12 |
| Volume Number | 58 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2018-08-21 |
| Access Restriction | Open |
| Subject Keyword | Journal: Nuclear Fusion Nuclear Energy and Engineering Icrf Heating |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nuclear and High Energy Physics Condensed Matter Physics |
