A spectrometer for ultrashort gamma-ray pulses with photon energies greater than 10 MeV
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 01, 2018
- Source ID
- 10.1063/1.5056248
Entities
People
- Alexander G. Thomas
- Anton Ilderton
- Archis Joglekar
- C. Harvey
- C. P. Ridgers
- Christopher David Baird
- Christopher Dominic Murphy
- D. Symes
- Elias Gerstmayr
- G. M. Samarin
- Gianluca Sarri
- J. Warwick
- Jason M Cole
- Jonathan Wood
- Karl Krushelnick
- Keegan Behm
- Kristjan Poder
- M. Duff
- M. Marklund
- M. Zepf
- Paul Mckenna
- S P D Mangles
- S. Kuschel
- Tom Blackburn
- Zulfikar Najmudin
Organizations
- Central Laser Facility
- Chalmers University of Technology
- Engineering and Physical Sciences Research Council
- Friedrich Schiller University Jena
- Imperial College London
- Knut and Alice Wallenberg Foundation
- Marie Skłodowska-Curie Actions
- National Science Foundation
- Queen's University Belfast
- Science and Technology Facilities Council
- United States Department of Defense
- United States Department of Energy
- University of California
- University of Lancaster
- University of Michigan
- University of Plymouth
- University of Strathclyde
- University of York