Development of the prototype for the SPARC hard X-ray monitor
Name
083516_1_5.0219549.pdf
Description
Published version
Size
5.88 MB
Format
Adobe PDF
Checksum (MD5)
1e27e7fd90328258c481c941d45e4708
Author(s)
Panontin, E
Tinguely, RA
Hartwig, ZS
Saltos, AA
Vezinet, D
Rice, J
Date Issued
August 5, 2024
Journal
Review of Scientific Instruments
Publisher
AIP Publishing
Citation
E. Panontin, R. A. Tinguely, Z. S. Hartwig, A. A. Saltos, D. Vezinet, J. Rice; Development of the prototype for the SPARC hard X-ray monitor. Rev. Sci. Instrum. 1 August 2024; 95 (8): 083516.
Version
Final published version
Abstract
The SPARC tokamak will be equipped with a hard X-ray (HXR) monitor system capable of measuring the bremsstrahlung emission from runaway electrons with photon energies in excess of about 100 keV. This diagnostic will detect the formation of runaway electron beams during plasma start-up and inform the plasma control system to terminate the discharge early to protect the machine. In this work, we present a 0D estimate of the HXR emission in SPARC during plasma start-up. Then we discuss the characterization of a prototype of the HXR monitor. The detector mounts a 1 × 1-in.2 LaBr3 inorganic scintillator coupled with a photomultiplier tube and has been tested with γ-ray sources to find its dynamic range. Finally, two possible modes of operation for spectroscopic and current mode measurements on SPARC are proposed.
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Terms of Use
Creative Commons Attribution-Noncommercial
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DOI of Published Version
https://doi.org/10.1063/5.0219549
