This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1016/j.jnucmat.2004.10.104 in citations.
Experimental observations and modelling of carbon transport in the inner divertor of JET
Experimental observations and modelling of carbon transport in the inner divertor of JET
In JET, hydrocarbon transport in the inner divertor has been studied on a shot to shot basis by means of a quartz microbalance (QMB) mounted at the entrance of the inner divertor pump duct. Movement of the strike point down the vertical divertor target in the direction of the QMB increases the depos...
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Personal Name(s): | Kirschner, A. |
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Philipps, V. / Coster, T. A. / Erents, S. K. / Esser, H. G. / Federici, G. / Kukushkin, A. S. / Loarte, A. / Matthews, G. F. / Roth, J. / Samm, U. | |
Contributing Institute: |
Institut für Plasmaphysik; IPP |
Published in: | Journal of nuclear materials, 337-339 (2005) S. 17 - 24 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2005
|
Physical Description: |
17 - 24 |
DOI: |
10.1016/j.jnucmat.2004.10.104 |
Document Type: |
Journal Article |
Research Program: |
Kernfusion und Plasmaforschung |
Series Title: |
Journal of Nuclear Materials
337-339 |
Subject (ZB): | |
Publikationsportal JuSER |
In JET, hydrocarbon transport in the inner divertor has been studied on a shot to shot basis by means of a quartz microbalance (QMB) mounted at the entrance of the inner divertor pump duct. Movement of the strike point down the vertical divertor target in the direction of the QMB increases the deposition. Largest carbon deposition is found with the strike point located at the corner of the horizontal divertor plate which offers a direct line-of-sight to the QMB. Monte-Carlo modelling with the ERO transport code reproduces the dependence of material deposition at the QMB on the plasma configuration. A further enhanced carbon flux to the QMB is detected if the strike point is moved for the first time to a location where a carbon layer was built up in former shots. This can be understood in terms of a much larger erosion yield for re-deposited carbon compared with bulk material. (c) 2004 Elsevier B.V. All rights reserved. |