Bibliographic Citation
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| Title | Changes to the ion temperature profile during IBW heating in PBX-M |
| Creator/Author | Tighe, W. ; Bell, R. ; Chu, T.K. ; Hermann, H. ; LeBlanc, B. ; Okabayashi, M. ; Ono, M. (Oak Ridge National Laboratory, Tennessee (United States)) ; Asakura, N. (Princeton University Plasma Physics Laboratory New Jersey (United States)) ; Cesario, R. (Jaeri (Japan)) ; England, A. ; Isler, R. (ENEA, Frascati (Italy)) ; Kaita, R. ; Kugel, H. ; Paul, S. (Oak Ridge National Laboratory, Tennessee (United States)) ; Post-Zwicker, A. (ENEA, Frascati (Italy)) Takahashi, H. (Oak Ridge National Laboratory, Tennessee (United States)) |
| Publication Date | 1994 Oct 15 |
| OSTI Identifier | OSTI ID: 7263117 |
| Report Number(s) | CONF-9304112-- |
| DOE Contract Number | AC02-76CH03073 |
| Other Number(s) | Journal ID: ISSN 0094-243X; CODEN: APCPCS |
| Resource Type | Conference |
| Specific Type | Journal Article |
| Resource Relation | Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States); Journal Volume: 289:1; Conference: 10. topical conference on radio frequency power in plasmas, Boston, MA (United States), 1-3 Apr 1993 |
| Subject | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; PLASMA HEATING; BERNSTEIN MODE; ELECTRON TEMPERATURE; ION CYCLOTRON-RESONANCE; ION PLASMA WAVES; ION TEMPERATURE; PBX DEVICES; CLOSED PLASMA DEVICES; CYCLOTRON RESONANCE; HEATING; ION WAVES; OSCILLATION MODES; PLASMA WAVES; RESONANCE; THERMONUCLEAR DEVICES; TOKAMAK DEVICES |
| Description/Abstract | The introduction of Ion Bernstein Wave Heating (IBWH) experiments in PBX-M have demonstrated significant bulk ion heating and ion temperature (T[sub i]) profile modification. T[sub i] profiles were obtained using a multi-channel, charge-exchange recombination spectroscopy system (the CHERS diagnostic). With IBWH, there are density increases; so to produce comparative discharges when no IBWH is present, additional gas must be injected. For [bar n][sub e], of [similar to]3[times]10[sup 13] cm[sup [minus]3], the central ion temperature, T[sub i0], was observed to increase by 350 eV when 0.6 MW of IBWH was applied for [similar to]300 msec. The product [bar n][sub e] T[sub i0], a measure of the ion stored energy, increases linearly with IBWH power. The T[sub i] profile broadened with IBWH and the ion temperature gradient steepened near the predicted power deposition layer, providing evidence of localized heating. Examination of [Delta]T[sub i] profile evolution indicated that the IBWH power was, in fact, deposited in a localized, off-axis region. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: Pages: 72-75 |
| System Entry Date | 2008 Feb 12 |
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Last Updated: 11/19/2009