This title appears in the Scientific Report :
2001
Please use the identifier:
http://dx.doi.org/10.1016/S0022-3115(00)00543-2 in citations.
JET methane screening experiments
JET methane screening experiments
Methane screening experiments were performed in JET L-Mode plasmas. Potentially, methane pulling quantifies the SOL processes governing the intrinsic carbon, its penetration to the plasma core, and its removal to the divertor. We measured the perturbations to the core and the SOL plasmas as a functi...
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Personal Name(s): | Strachan, J. D. |
---|---|
Erents, K. / Fundamenski, W. / von Hellermann, M. | |
Contributing Institute: |
Institutsbereich I; IPP-1 Institutsbereich II; IPP-2 |
Published in: | Journal of nuclear materials, 290-293 (2001) S. 972 - 975 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2001
|
Physical Description: |
972 - 975 |
DOI: |
10.1016/S0022-3115(00)00543-2 |
Document Type: |
Journal Article |
Research Program: |
TEC-FOM |
Series Title: |
Journal of Nuclear Materials
290 |
Subject (ZB): | |
Publikationsportal JuSER |
Methane screening experiments were performed in JET L-Mode plasmas. Potentially, methane pulling quantifies the SOL processes governing the intrinsic carbon, its penetration to the plasma core, and its removal to the divertor. We measured the perturbations to the core and the SOL plasmas as a function of CD4 and D-2 injection rates. The deduced screening was independent of the methane injection rate indicating that the methane itself did not significantly perturb the deduced screening. Identification of appropriate reference plasmas is important, For JET L-Modes, the reference plasma should have enough deuterium puffing to achieve the same density as that which occurred with the methane. The screening results are susceptible to systematic errors in the visible and charge exchange determination of the core carbon density. For JET, these two measurements yield screening values that differ by a 'factor-of-three'. (C) 2001 Elsevier Science B.V. All rights reserved. |