Collective Thomson scattering system for determination of ion properties in a high flux plasma beam

H.J. van der Meiden, J.W.M. Vernimmen, K.E. Bystrov, K. Jesko, M.Y. Kantor, G. De Temmerman, T.W. Morgan

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Abstract

A collective Thomson scattering system has been developed for measuring ion temperature, plasma velocity and impurity concentration in the high density magnetized Magnum-PSI plasma beam, allowing for measurements at low temperature (<5 eV) and high electron density >4 x 10 20m3,while avoiding laser plasma heating caused by inverse Bremsstrahlung. The collective Thomson scattering system is based on the fundamental mode of a seeded Nd:YAG laser and equipped with an LIVAR M506 camera (EBABS technology). The first collective Thomson scattering measurements are taken at the linear plasma generator Pilot-PSI, 40 mm downstream of the cascaded arc source. At this location, the ion temperature is about equal to the electron temperature in the bulk of the plasma beam.
Original languageEnglish
Article number261102
Pages (from-to)1-6
Number of pages6
JournalApplied Physics Letters
Volume109
Issue number26
DOIs
Publication statusPublished - 26 Dec 2016

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