YAG-Thomson Scattering System in GAMMA 10/PDX Central and End Cells

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Abstract

<p>We developed an yttrium aluminum garnet (YAG)-Thomson scattering (TS) system for radial profile measurements of electron temperature and density in the GAMMA 10/PDX central cell. The optical collection system for TS light was constructed from three spherical mirrors and nine bundled optical fibers. The radial positions were intervals less than 5cm in the range of ±20 cm and were measured by moving the fixed fiber bundle position from shot to shot. We constructed a multi-pass TS system with laser amplification, which can increase the signal intensity and time resolution of the TS diagnostic system. In addition, we installed the end-TS system using the central-TS YAG laser in order to measure the electron temperature and density in a divertor simulation experimental module in the GAMMA 10/PDX end cell.</p>

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 14 (0), 2402002-2402002, 2019-01-24

    The Japan Society of Plasma Science and Nuclear Fusion Research

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