In situ calibration of charged particle spectrometers on the OMEGA Laser Facility using 241Am and 226Ra sources
Name
5.0099752.pdf
Description
Published version
Size
5.76 MB
Format
Adobe PDF
Checksum (MD5)
572900caf2c037e2195fd49a1a874e2f
Author(s)
Adrian, PJ
Armstrong, J
Birkel, A
Chang, C
Dannhoff, S
Evans, T
Johnson, M Gatu
Johnson, TM
Kabadi, N
Kunimune, J
Date Issued
November 1, 2022
Journal
Review of Scientific Instruments
Publisher
AIP Publishing
Citation
Adrian, PJ, Armstrong, J, Birkel, A, Chang, C, Dannhoff, S et al. 2022. "In situ calibration of charged particle spectrometers on the OMEGA Laser Facility using 241Am and 226Ra sources." Review of Scientific Instruments, 93 (11).
Version
Final published version
Abstract
Charged particle spectrometry is a critical diagnostic to study inertial-confinement-fusion plasmas and high energy density plasmas. The OMEGA Laser Facility has two fixed magnetic charged particle spectrometers (CPSs) to measure MeV-ions. In situ calibration of these spectrometers was carried out using 241Am and 226Ra alpha emitters. The alpha emission spectrum from the sources was measured independently using surface-barrier detectors (SBDs). The energy dispersion and broadening of the CPS systems were determined by comparing the CPS measured alpha spectrum to that of the SBD. The calibration method significantly constrains the energy dispersion, which was previously obtained through the measurement of charged particle fusion products. Overall, a small shift of 100 keV was observed between previous and the calibration done in this work.
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1063/5.0099752
