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Title: Optimal Design of a Tunable Thomson-Scattering Based Gamma-Ray Source

Thomson-Scattering based systems offer a path to high-brightness high-energy (> 1 MeV) x-ray and {gamma}-ray sources due to their favorable scaling with electron energy. LLNL is currently engaged in an effort to optimize such a device, dubbed the ''Thomson-Radiated Extreme X-Ray'' (T-REX) source, targeting up to 680 keV photon energy. Such a system requires precise design of the interaction between a high-intensity laser pulse and a high-brightness electron beam. Presented here are the optimal design parameters for such an interaction, including factors such as the collision angle, focal spot size, optimal bunch charge, and laser energy. These parameters were chosen based on extensive modeling using PARMELA and in-house, well-benchmarked scattering simulation codes.
Authors:
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Publication Date:
OSTI Identifier:
912672
Report Number(s):
UCRL-PROC-231689
TRN: US0800482
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: Particle Accelerator Conference '07, Albuquerque, NM, United States, Jun 24 - Jun 29, 2007
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; ACCELERATORS; DESIGN; ELECTRON BEAMS; ELECTRONS; LASERS; LAWRENCE LIVERMORE NATIONAL LABORATORY; PHOTONS; SCATTERING; SIMULATION; THOMSON SCATTERING