Title :
Optimal design of a tunable thomson-scattering based gamma-ray source
Author :
Gibson, D.J. ; Anderson, S.G. ; Betts, S.M. ; Hartemann, F.V. ; Jovanovic, I. ; McNabb, D.P. ; Messerly, M.J. ; Pruet, J.A. ; Shverdin, M.Y. ; Siders, C.W. ; Tremaine, A.M. ; Barty, C.P.J.
Author_Institution :
Lawrence Livermore Nat. Lab., Livermore
Abstract :
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 modelling using PARMELA and in-house, well-benchmarked scattering simulation codes.
Keywords :
X-ray production; electron beams; gamma-ray production; laser beams; particle beam bunching; particle beam dynamics; PARMELA simulation code; T-REX; Thomson-Radiated Extreme X-ray source; X-ray source; collision angle; electron beam; electron energy; focal spot size; gamma-ray source; high-intensity laser pulse; laser energy; optimal bunch charge; photon energy; tunable Thomson scattering; Electromagnetic scattering; Electron beams; Laser modes; Optical design; Optical pulses; Particle scattering; Scattering parameters; Tunable circuits and devices; X-ray lasers; X-ray scattering;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4441045
