Design of a diamond-based in-vessel soft x-ray detector for the SPARC tokamak
Name
093102_1_5.0219522.pdf
Description
Published version
Size
5.69 MB
Format
Adobe PDF
Checksum (MD5)
182030eb50a25bd3c8a8205afa6c5362
Author(s)
Normile, S
Vezinet, D
Perks, C
Bombarda, F
Verona-Rinati, G
Rice, JE
Verona, C
Raso, AM
Angelone, M
Date Issued
September 24, 2024
Journal
Review of Scientific Instruments
Publisher
AIP Publishing
Citation
S. Normile, D. Vezinet, C. Perks, F. Bombarda, G. Verona-Rinati, J. E. Rice, C. Verona, A. M. Raso, M. Angelone; Design of a diamond-based in-vessel soft x-ray detector for the SPARC tokamak. Rev. Sci. Instrum. 1 September 2024; 95 (9): 093102.
Version
Final published version
Abstract
The in-vessel silicon diode arrays that are used for soft x-ray detection in many tokamaks are sensitive to neutron damage, making them unsuitable for burning plasma devices such as SPARC. In such a device, the silicon diodes would need to be placed far from the plasma—limiting their field of view—or an alternative detector could be used. Here, we present the design of a camera containing an array of chemical vapor deposition single-crystal diamonds, which will be placed in the upper and lower port plugs of the SPARC tokamak with a large enough view of the poloidal cross section to enable tomographic inversion. The camera design presented here is optimized to provide a wide field of view of the poloidal cross section. Simulated plasma conditions are used to estimate the x-ray signal that this detector array will receive and to fine-tune the camera placement within the tokamak.
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Terms of Use
Creative Commons Attribution-Noncommercial
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1063/5.0219522
