TY - JOUR
T1 - High energy X-ray Compton spectroscopy via iterative reconstruction
AU - Haden, D.
AU - Golovin, G.
AU - Yan, W.
AU - Fruhling, C.
AU - Zhang, P.
AU - Zhao, B.
AU - Banerjee, S.
AU - Umstadter, D.
N1 - Funding Information:
We thank K. Brown, C. Petersen for their contributions to the laser facility, and thank B. Nordell for proofreading the manuscript and in-depth discussions. This material is based upon work supported by the Air Force Office for Scientific Research, USA under award number FA9550-14-1-0345 (interactions of electrons with laser light at highly relativistic intensities), National Science Foundation, USA under Grant No. PHY-1535700 (ultra-low emittance electron beams); the Basic Energy Sciences (BES) , Office of Science , US Department of Energy (DOE), USA , under Award # DE-FG02-05ER15663 (laser-driven X-rays for ultrafast science); this support does not constitute an express or implied endorsement on the part of the Government.
Publisher Copyright:
© 2019
PY - 2020/1/21
Y1 - 2020/1/21
N2 - In this paper, we report on the design and implementation of a compact and robust Compton spectrometer capable of measuring x-rays in the energy range 1 to 20 MeV. An iterative reconstruction method was employed to reconstruct the x-ray spectrum without assuming an initial distribution function. Spectral resolution was further optimized by judicious choice of composition and thickness of the electron-convertor, as well as angular acceptance into the spectrometer. A particle transport code was used to account for all instrument-related factors. Performance of the spectrometer was demonstrated experimentally by characterizing x-rays generated by high-order multiphoton Thomson scattering.
AB - In this paper, we report on the design and implementation of a compact and robust Compton spectrometer capable of measuring x-rays in the energy range 1 to 20 MeV. An iterative reconstruction method was employed to reconstruct the x-ray spectrum without assuming an initial distribution function. Spectral resolution was further optimized by judicious choice of composition and thickness of the electron-convertor, as well as angular acceptance into the spectrometer. A particle transport code was used to account for all instrument-related factors. Performance of the spectrometer was demonstrated experimentally by characterizing x-rays generated by high-order multiphoton Thomson scattering.
KW - Compton scattering
KW - Laser generated radiation
KW - Nonlinear scattering
KW - Spectrum reconstruction
KW - X-ray spectroscopy
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U2 - 10.1016/j.nima.2019.163032
DO - 10.1016/j.nima.2019.163032
M3 - Article
AN - SCOPUS:85074143852
SN - 0168-9002
VL - 951
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
M1 - 163032
ER -