|
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.
|
| Authors: |
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: | 7263117 |
|---|
| Report Number(s): | CONF-9304112-- |
|---|
| DOE Contract Number: | AC02-76CH03073 |
|---|
| Resource Type: | Conference/Event |
|---|
| 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 |
|---|
| Country of Publication: | United States |
|---|
| Language: | English |
|---|
| Format: | Size: Pages: 72-75 |
|---|
| Other Number(s): | Journal ID: ISSN 0094-243X; CODEN: APCPCS |
|---|
| Specific Type: | Journal Article |
|---|
| 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 |
|---|
| Update Date: | 2008 Feb 12 |
|---|
Top |
|
