Development of a compact magnetic spectrometer for use at the OMEGA Laser Facility and the National Ignition Facility
Name
103509_1_5.0219482.pdf
Description
Published version
Size
5.49 MB
Format
Adobe PDF
Checksum (MD5)
19c45335a08c12f7b25371436c6c7910
Author(s)
Pearcy, JA
Russell, L
Kabadi, NV
Johnson, TM
Adrian, PA
Gatu-Johnson, M
Casco, E
Palmisano, K
Gates, G
Burgett, T
Date Issued
October 3, 2024
Journal
Review of Scientific Instruments
Publisher
AIP Publishing
Citation
J. A. Pearcy, L. Russell, N. V. Kabadi, T. M. Johnson, P. A. Adrian, M. Gatu-Johnson, E. Casco, K. Palmisano, G. Gates, T. Burgett, M. Scott, R. D. Petrasso, C. K. Li, J. Frenje; Development of a compact magnetic spectrometer for use at the OMEGA Laser Facility and the National Ignition Facility. Rev. Sci. Instrum. 1 October 2024; 95 (10): 103509.
Version
Final published version
Abstract
Measurement of proton spectra is an important diagnostic for a variety of high energy density physics experiments. Current diagnostics are either not designed to capture the spectrum of low-energy protons or are unsuitable for high debris experiments. To bridge the gap, a new CR-39 based compact magnetic spectrometer (MagSpec) has been developed to measure proton spectra in the 1–20 MeV energy range, with a particular focus on the low-energy (1–6 MeV) spectrum, for use in experiments at the OMEGA Laser Facility and the National Ignition Facility (NIF). In the MagSpec diagnostic, protons of different energies are dispersed as they pass through a magnetic field before impinging on a differentially filtered CR-39 surface, resulting in a spatial distribution of CR-39 tracks that corresponds to the energy spectrum. In this paper, we discuss details of the design and implementation of MagSpec on the NIF and OMEGA.
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/10.1063/5.0219482
