Performance predictions of the SPARC x-ray crystal spectrometers for ion temperature and toroidal rotation measurements
Name
083555_1_5.0219521.pdf
Description
Published version
Size
5.01 MB
Format
Adobe PDF
Checksum (MD5)
2f99b3be41614bb007ef68d971dc06f8
Author(s)
Perks, C
Vezinet, D
Rice, JE
Reinke, ML
Date Issued
August 27, 2024
Journal
Review of Scientific Instruments
Publisher
AIP Publishing
Citation
C. Perks, D. Vezinet, J. E. Rice, M. L. Reinke; Performance predictions of the SPARC x-ray crystal spectrometers for ion temperature and toroidal rotation measurements. Rev. Sci. Instrum. 1 August 2024; 95 (8): 083555.
Version
Final published version
Abstract
SPARC will be outfitted with three systems of x-ray crystal spectrometer arrays. Two of these are designed using cylindrically bent crystals to achieve high spectral-resolution for ion temperature and toroidal velocity measurements via imaging He-like Kr and Ne-like Xe. The last acts as a spectral survey system to monitor Ne-like W and nearby H- and He-like emission from Cr, Fe, Co, Ni, and Cu. Line radiation intensities are calculated using the Flexible Atomic Code for atomic data and ColRadPy for collisional-radiative modeling, then convoluted with a Voigt line shape. Free–free, free-bound, and two-photon continuum radiation is also included. The ToFu code is used to perform volume-of-sight integration to produce synthetic detector images. In addition, presented is cross-validation performed using the XICSRT Monte Carlo ray-tracing code. Ion temperature and toroidal velocity profiles are reconstructed using ToFu via tomographic inversion.
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1063/5.0219521
