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Proceedings Paper

New results from sub-3 MeV Compton spectrometer experiments
Author(s): Amanda E. Gehring; Michelle A. Espy; Todd J. Haines; Marc L. Klasky; B. Timothy Meehan
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Paper Abstract

Our team at Los Alamos National Laboratory has successfully employed Compton spectrometers to measure the X-ray spectra of both continuous and flash radiographic sources. In this method, a collimated beam of X-rays incident on a converter foil ejects Compton electrons. A collimator may be inserted into the entrance of the spectrometer to narrow the angular acceptance of the forward-scattered electrons, which then enter the magnetic field region of the spectrometer. The position of the electrons at the magnet’s focal plane is proportional to the square root of their momentum, allowing the X-ray spectrum to be reconstructed. A new samarium-cobalt spectrometer with an energy range of 50 keV to 4 MeV has been fielded at two facilities. The X-ray generating machines produced intense photon beams (> 4 rad at 1 m) with spectral endpoints below 3 MeV. Recent experimental results will be presented.

Paper Details

Date Published: 7 September 2017
PDF: 6 pages
Proc. SPIE 10393, Radiation Detectors in Medicine, Industry, and National Security XVIII, 103930C (7 September 2017); doi: 10.1117/12.2274701
Show Author Affiliations
Amanda E. Gehring, Los Alamos National Lab. (United States)
Michelle A. Espy, Los Alamos National Lab. (United States)
Todd J. Haines, Los Alamos National Lab. (United States)
Marc L. Klasky, Los Alamos National Lab. (United States)
B. Timothy Meehan, Nevada National Security Site (United States)

Published in SPIE Proceedings Vol. 10393:
Radiation Detectors in Medicine, Industry, and National Security XVIII
Gary P. Grim; Lars R. Furenlid; H. Bradford Barber, Editor(s)

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