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Design of a multi-pulse Thomson scattering system for the SMART tokamak

POSTER

Abstract

In this presentation, we describe a Thomson scattering (TS) diagnostic that will be used on the SMART tokamak [1]. The SMall Aspect Ratio Tokamak (SMART) is a new spherical tokamak being assembled at the University of Seville, Spain that aims to explore negative and positive triangularity plasma scenarios. TS diagnostic is designed to measure electron temperature ranging from 1 eV to 1 keV and density from 5×1018 to 2×1020 m-3. These parameters will be measured at 28 spatial points in the midplane such that the edge pedestal can be resolved on the high-field and low-field sides in both positive and negative triangularity plasmas. A 2 Joule Nd:YAG laser operating at 1064 nm will be employed, capable of operating in the burst mode at 1 kHz for ~100 ms and at 30 Hz for 1 sec long discharges. The scattered light will be collected over an angular range of 70 – 130 degrees and spectrally resolved on five wavelength channels of 14 polychromators.

References:

[1] M. Garcia-Munoz et al., IAEA-FEC (2023)

Presenters

  • Manjit Kaur

    Princeton Plasma Physics Laboratory

Authors

  • Manjit Kaur

    Princeton Plasma Physics Laboratory

  • Ahmed Diallo

    Princeton Plasma Physics Laboratory

  • Benoit P LeBlanc

    Princeton Plasma Physics Laboratory

  • Mario L Podesta

    Princeton Plasma Physics Laboratory, PPPL

  • Jack Berkery

    Princeton Plasma Physics Laboratory

  • J. Segado-Fernandez

    University of Seville, Spain, University of Seville, Seville, Spain

  • Eleonora Viezzer

    University of Seville, Spain, University of Sevilla, University of Seville, Seville, Spain

  • Manuel Garcia-Munoz

    University of Seville, Spain, University of Seville, University of Sevilla, University of Seville, Seville, Spain

  • Alessio Mancini

    University of Seville, Spain, University of Sevilla, University of Seville, Seville, Spain

  • Diego J Cruz-Zabala

    University of Seville, Spain, University of Sevilla, University of Seville, Seville, Spain