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Proceedings Paper

Recent results from Compton spectrometer experiments
Author(s): Amanda E. Gehring; Michelle A. Espy; Todd J. Haines; Timothy J. Webb
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Paper Abstract

During the previous three years, a Compton spectrometer has successfully measured the x-ray spectra of both continuous and flash radiographic sources. In this method, a collimated beam of x-rays incident on a convertor foil ejects Compton electrons. A collimator in the entrance to the spectrometer selects the forward-scattered electrons, which 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. The spectrometer is a neodymium-iron magnet which measures spectra in the <1 MeV to 20 MeV energy range. The energy resolution of the spectrometer was experimentally tested with the 44 MeV Short-Pulse Electron LINAC at the Idaho Accelerator Center. The measured values are mostly consistent with the design specification and historical values of the greater of 1% or 0.1 MeV. Experimental results from this study are presented in these proceedings.

Paper Details

Date Published: 12 September 2016
PDF: 6 pages
Proc. SPIE 9969, Radiation Detectors: Systems and Applications XVII, 996906 (12 September 2016); doi: 10.1117/12.2238310
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)
Timothy J. Webb, Sandia National Lab. (United States)

Published in SPIE Proceedings Vol. 9969:
Radiation Detectors: Systems and Applications XVII
Gary P. Grim; H. Bradford Barber; Lars R. Furenlid, Editor(s)

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