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Title: COMPACT, TUNABLE COMPTON SCATTERING GAMMA-RAY SOURCES

Recent progress in accelerator physics and laser technology have enabled the development of a new class of gamma-ray light sources based on Compton scattering between a high-brightness, relativistic electron beam and a high intensity laser pulse produced via chirped-pulse amplification (CPA). A precision, tunable gamma-ray source driven by a compact, high-gradient X-band linac is currently under development at LLNL. High-brightness, relativistic electron bunches produced by the linac interact with a Joule-class, 10 ps laser pulse to generate tunable {gamma}-rays in the 0.5-2.5 MeV photon energy range via Compton scattering. The source will be used to excite nuclear resonance fluorescence lines in various isotopes; applications include homeland security, stockpile science and surveillance, nuclear fuel assay, and waste imaging and assay. The source design, key parameters, and current status are presented.
Authors:
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Publication Date:
OSTI Identifier:
967295
Report Number(s):
LLNL-PROC-416016
TRN: US0904343
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: FEL 2009, Liverpool, United Kingdom, Aug 23 - Aug 28, 2009
Research Org:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; ACCELERATORS; ACCURACY; AMPLIFICATION; COMPTON EFFECT; ELECTRON BEAMS; ELECTRONS; ENERGY RANGE; LASERS; LIGHT SOURCES; LINEAR ACCELERATORS; NUCLEAR FUELS; PHOTONS; PHYSICS; RESONANCE FLUORESCENCE; SECURITY; STOCKPILES; WASTES