Browning, P.K., Fantz, U., Gibson, K.J. et al. (2 more authors) (2005) Spatial structure of detached plasmas in the ULS divertor simulator. Journal of Nuclear Materials, 337-33. pp. 232-236. ISSN 0022-3115
Abstract
The UMIST Linear system (ULS) is a linear plasma device designed to study plasma and atomic physics issues relevant to tokamak divertors. The ULS produces a steady state plasma beam which interacts with neutral gas in a target chamber. Dependent on the upstream conditions, either electron-ion recombination (EIR) or molecular activated recombination (MAR) may dominate. Here we report on detailed studies of the plasma spatial structure in both regimes. A specially designed optical spectroscopy probe is used to measure the visible emission, with spatial resolution less than 5 mm. Atomic and molecular lines are identified, and the results are interpreted using a collisional-radiative model, enabling the MAR rate to be calculated. One dimensional plasma modelling also demonstrates a transition between EIR and MAR dominated regimes, as the upstream conditions are varied.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | York RAE Import |
Date Deposited: | 21 Apr 2009 11:02 |
Last Modified: | 21 Apr 2009 11:25 |
Published Version: | http://dx.doi.org/10.1016/j.jnucmat.2004.10.040 |
Status: | Published |
Publisher: | Elsevier Science B.V., Amsterdam. |
Identification Number: | 10.1016/j.jnucmat.2004.10.040 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:6793 |