Testing of a gamma ray imaging system at the High Intensity Gamma Source

Daniel A. Lemieux; H. Bradford Barber; Gary P. Grim; Thomas Archuleta; Valerie Fatherley; David Fastje

doi:10.1117/12.2066254

23 September 2014 Testing of a gamma ray imaging system at the High Intensity Gamma Source

Daniel A. Lemieux, H. Bradford Barber, Gary P. Grim, Thomas Archuleta, Valerie Fatherley, David Fastje

Proceedings Volume 9211, Target Diagnostics Physics and Engineering for Inertial Confinement Fusion III; 921105 (2014) https://doi.org/10.1117/12.2066254
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

Testing of the gamma ray imaging system will continue at the High Intensity Gamma Source (HIGS) at Duke University. Previous testing at OMEGA gave useful information but at much lower photon energies. Utilizing HIGS 10⁸ gammas/s and its tight beam we will be able to characterize the system in the energy regime that it was designed for namely 4.44 MeV. HIGS offers the ability to tune the beam’s energy from 1-20 MeV by way of controlling the inverse Compton scattering off of a relativistic electron beam. With this feature characterization in a range of energies will be possible. Targets were made using a ray-tracing program that replicates a 12-micron ideal pinhole and a 20 cm long 300-micron gold penumbra aperture. The latter will require reconstruction of the coded images.

Citation Download Citation

Daniel A. Lemieux, H. Bradford Barber, Gary P. Grim, Thomas Archuleta, Valerie Fatherley, and David Fastje "Testing of a gamma ray imaging system at the High Intensity Gamma Source", Proc. SPIE 9211, Target Diagnostics Physics and Engineering for Inertial Confinement Fusion III, 921105 (23 September 2014); https://doi.org/10.1117/12.2066254

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