Plasma-Material-Interaction Research Using PISCES Linear Plasma Devices

Baldwin, M. J.; Doerner, R. P.; Nishijima, D.; Patino, M.; Simmonds, M. J.; Tynan, G.; Yu, J. H.; Založnik, A.

doi:10.1080/15361055.2019.1646608

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Plasma-Material-Interaction Research Using PISCES Linear Plasma Devices

Baldwin, M. J.·Doerner, R. P.·Nishijima, D.·Patino, M.·Simmonds, M. J.·Tynan, G.·Yu, J. H.·Založnik, A.

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Abstract

In this paper, recent plasma-material-interaction (PMI) studies of relevance to fusion PMI science are discussed. The results are a mix of science experiments and in situ diagnostic technology development. Scientific issues addressed include the nature of He and W atom migration in the evolution of W fuzz surfaces, understanding the nature of D retention in damaged W surfaces via modeling with the tritium migration and analysis program, and an examination of synergistic effects associated with D trapping on composite Be codeposit and W substrate surfaces. In situ diagnostic developments discussed include laser-induced desorption spectroscopy for the measurement of bulk hydrogen retention and laser-induced breakdown spectroscopy for the measurement of near-surface composition.

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70 PLASMA PHYSICS AND FUSION TECHNOLOGY ITER Plasma-material interaction beryllium, tungsten laser-induced breakdown spectroscopy laser-induced desorption spectroscopy tritium migration and analysis program

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Baldwin, M. J., Doerner, R. P., Nishijima, D., Patino, M., Simmonds, M. J., Tynan, G., Yu, J. H., Založnik, A.. 2019-10-07. Plasma-Material-Interaction Research Using PISCES Linear Plasma Devices. https://doi.org/10.1080/15361055.2019.1646608

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