Brown, M. R. and Bellan, P. M. (1990) Current drive by spheromak injection into a tokamak. Physical Review Letters, 64 (18). pp. 2144-2147. ISSN 0031-9007. doi:10.1103/PhysRevLett.64.2144. https://resolver.caltech.edu/CaltechAUTHORS:BROprl90
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Abstract
We report the first observation of current drive by injection of a spheromak plasma into a tokamak (Caltech ENCORE small reasearch tokamak) due to the process of helicity injection. After an abrupt 30% increase, the tokamak current decays by a factor of 3 due to plasma cooling caused by the merging of the relatively cold spheromak with the tokamak. The tokamak density profile peaks sharply due to the injected spheromak plasma (n¯3 increases by a factor of 6) then becomes hollow, suggestive of an interchange instability.
| Item Type: | Article | ||||||
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| Additional Information: | © 1990 The American Physical Society. Received 5 October 1989. This work was performed under DOE Grant No. DE-FG03-86ER53232. M.R.B. is a U.S. DOE Fusion Energy Postdoctoral Research Fellow. | ||||||
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| Issue or Number: | 18 | ||||||
| DOI: | 10.1103/PhysRevLett.64.2144 | ||||||
| Record Number: | CaltechAUTHORS:BROprl90 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:BROprl90 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 9335 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Archive Administrator | ||||||
| Deposited On: | 13 Dec 2007 | ||||||
| Last Modified: | 08 Nov 2021 20:58 |
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