NDLI: Multiple discharge channels in a cascaded arc to produce extreme hydrogen plasma beams

Content Provider	IEEE Xplore Digital Library
Author	Vijvers, W.A.J. Al, R.S. van den Berg, M.A. van Eck, H.J.N. Goedheer, W.J. de Groot, B. Kleyn, A.W. Koppers, W.R. Kruijt, O.G. Lopes Cardozo, N.J. van der Meiden, H.J. van de Pol, M.J. Prins, P.R. Rapp, J. Schram, D.C. Shumack, A.E. Smeets, P.H.M. Westerhout, J. Wright, G.M. van Rooij, G.J.
Copyright Year	2008
Description	Author affiliation: FOM-Inst. for Plasma Phys. Rijnhuizen, Nieuwegein (Vijvers, W.A.J.; Al, R.S.; van den Berg, M.A.; van Eck, H.J.N.; Goedheer, W.J.; de Groot, B.; Kleyn, A.W.; Koppers, W.R.; Kruijt, O.G.; Lopes Cardozo, N.J.; van der Meiden, H.J.; van de Pol, M.J.; Prins, P.R.; Rapp, J.; Schram, D.C.; Shumack, A.E.; Smeets, P.H.M.; Westerhout, J.; Wright, G.M.; van Rooij, G.J.)
Abstract	A high flux cascaded arc hydrogen plasma source is being developed for the linear plasma generator Magnum-PS I (magnetised plasma generator and numerical modeling for plasma surface interaction studies). Magnum-PSI will be the heart of the PSI-lab at the FOM-Institute for Plasma Physics Rijnhuizen and is being developed to investigate PSI issues for ITER. Especially the wall material of the so-called divertor of ITER, which is the region where plasma and impurities are neutralized and pumped off, will receive unprecedented particle and power loads. The expected numbers are: particle fluxes of up to 1024 $ions/m^{2}s$ and power loads of up to 10 MW/m2. We have demonstrated that it is possible to produce such conditions in a linear plasma generator with a cascaded arc in a magnetic field of 1.6 $T^{2}.$ The diameter of the plasma beam in these experiments was typically 20 mm. For Magnum-PSI, we envisage a beam diameter of 10 cm in order to enter the strongly coupled regime of PSI research. In this contribution we investigate the production of larger beam diameters by combining the output of several discharge channels. A new arc consisting of three separate arc channels with a common cylinder anode was constructed for this purpose. Thomson scattering, high resolution Doppler spectroscopy and calorimetry were applied to measure the performance of and interaction between the three channels.
Starting Page	1
Ending Page	1
File Size	34667
Page Count	1
File Format	PDF
ISBN	9781424419296
ISSN	07309244
DOI	10.1109/PLASMA.2008.4590676
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-15
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Plasmas Particle beams Generators Physics Discharges Calorimetry Doppler effect
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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