Initial operation and data processing on a system for real-time evaluation of Thomson scattering signals on the Large Helical Device
Plasma Physics
2021-06-25 v3
Abstract
A scalable system for real-time analysis of electron temperature and density based on signals from the Thomson scattering diagnostic, initially developed for and installed on the NSTX-U experiment, was recently adapted for the Large Helical Device (LHD) and operated for the first time during plasma discharges. During its initial operation run, it routinely recorded and processed signals for four spatial points at the laser repetition rate of 30 Hz, well within the system's rated capability for 60 Hz. We present examples of data collected from this initial run and describe subsequent adaptations to the analysis code to improve the fidelity of the temperature calculations.
Keywords
Cite
@article{arxiv.2101.03444,
title = {Initial operation and data processing on a system for real-time evaluation of Thomson scattering signals on the Large Helical Device},
author = {K. C. Hammond and F. M. Laggner and A. Diallo and S. Doskoczynski and C. Freeman and H. Funaba and D. A. Gates and R. Rozenblat and G. Tchilinguirian and Z. Xing and I. Yamada and R. Yasuhara and G. Zimmer and E. Kolemen},
journal= {arXiv preprint arXiv:2101.03444},
year = {2021}
}
Comments
5 pages, 5 figures