Development of Compton gamma-ray sources at LLNL

Journal Article · Fri Dec 21 04:00:00 EST 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4773777· OSTI ID:22075906

Albert, F; Anderson, S G; Ebbers, C A; Gibson, D J; Hartemann, F V; Marsh, R A; Messerly, M J; Prantil, M A; Wu, S; Barty, C P. J. ^[1]

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1. Lawrence Livermore National Laboratory, NIF and Photon Science, 7000 East avenue, Livermore, CA 94550 (United States)

Compact Compton scattering gamma-ray sources offer the potential of studying nuclear photonics with new tools. The optimization of such sources depends on the final application, but generally requires maximizing the spectral density (photons/eV) of the gamma-ray beam while simultaneously reducing the overall bandwidth on target to minimize noise. We have developed an advanced design for one such system, comprising the RF drive, photoinjector, accelerator, and electron-generating and electron-scattering laser systems. This system uses a 120 Hz, 250 pC, 2 ps, 0.35 mm mrad electron beam with 250 MeV maximum energy in an X-band accelerator scattering off a 150 mJ, 10 ps, 532 nm laser to generate 5 Multiplication-Sign 10{sup 10} photons/eV/s/Sr at 0.5 MeV with an overall bandwidth of less than 1%. The source will be able to produce photons up to energies of 2.5 MeV. We also discuss Compton scattering gamma-ray source predictions given by numerical codes.

• OSTI ID: 22075906
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1507; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BEAM PRODUCTION
COMPTON EFFECT
DESIGN
ELECTRON BEAMS
EV RANGE
GAMMA RADIATION
GAMMA SOURCES
LAWRENCE LIVERMORE NATIONAL LABORATORY
MEV RANGE
PHOTON BEAMS
RELATIVISTIC RANGE
RF SYSTEMS
SPECTRAL DENSITY