In situ calibration of charged particle spectrometers on the OMEGA Laser Facility using 241Am and 226Ra sources-Reference-Cited by-同舟云学术

In situ calibration of charged particle spectrometers on the OMEGA Laser Facility using ²⁴¹Am and ²²⁶Ra sources

Published:2022-11-01 Issue:11 Volume:93 Page:113534
ISSN:0034-6748
Container-title:Review of Scientific Instruments
language:en
Short-container-title:Review of Scientific Instruments

Author:

Adrian P. J.¹^ORCID,Armstrong J.²,Birkel A.¹^ORCID,Chang C.¹^ORCID,Dannhoff S.¹,Evans T.¹^ORCID,Johnson M. Gatu¹^ORCID,Johnson T. M.¹^ORCID,Kabadi N.¹^ORCID,Kunimune J.¹^ORCID,Li C. K.¹,Reichelt B.¹^ORCID,Regan S. P.²^ORCID,Pearcy J.¹^ORCID,Petrasso R. D.¹^ORCID,Pien G.²,McCluskey M.²,Séguin F. H.¹,Sutcliffe G. D.¹^ORCID,Frenje J. A.¹^ORCID

Affiliation:

1. Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

2. Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA

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.

Funder

National Nuclear Security Administration

U.S. Department of Energy

Publisher

AIP Publishing

Subject

Instrumentation

Link

https://aip.scitation.org/doi/pdf/10.1063/5.0099752

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1. Charged particle diagnostics for inertial confinement fusion and high-energy-density physics experiments;Review of Scientific Instruments;2023-02-01