Abstract
We present a design for a pixelated scintillator based gamma-ray spectrometer for non-linear inverse Compton scattering experiments. By colliding a laser wakefield accelerated electron beam with a tightly focused, intense laser pulse, gamma-ray photons up to 100 MeV energies and with few femtosecond duration may be produced. To measure the energy spectrum and angular distribution, a 33 × 47 array of cesium-iodide crystals was oriented such that the 47 crystal length axis was parallel to the gamma-ray beam and the 33 crystal length axis was oriented in the vertical direction. Using an iterative deconvolution method similar to the YOGI code, modeling of the scintillator response using GEANT4 and fitting to a quantum Monte Carlo calculated photon spectrum, we are able to extract the gamma ray spectra generated by the inverse Compton interaction.
DOI
10.1063/1.5056248
Publication Date
2018-11-01
Publication Title
Review of Scientific Instruments
Volume
89
Issue
11
Publisher
AIP Publishing
ISSN
1089-7623
Embargo Period
2024-11-22
Additional Links
https://www.ncbi.nlm.nih.gov/pubmed/30501337
First Page
113303
Last Page
113303
Recommended Citation
Behm, K., Cole, J., Joglekar, A., & et al. (2018) 'A spectrometer for ultrashort gamma-ray pulses with photon energies greater than 10 MeV.', Review of Scientific Instruments, 89(11), pp. 113303-113303. AIP Publishing: Available at: https://doi.org/10.1063/1.5056248
