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Accession Number DE2012-1045193
Title Advanced X-Band Test Accelerator for High Brightness Electron and Gamma Ray Beams.
Publication Date Jul 2012
Media Count 3p
Personal Author C. Adolphsen C. A. Ebbers C. P. J. Barty D. J. Gibson F. V. Hartemann R. A. Marsh S. G. Anderson T. S. Chu
Abstract In support of Compton scattering gamma-ray source efforts at LLNL, a multi-bunch test stand is being developed to investigate accelerator optimization for future upgrades. This test stand will enable work to explore the science and technology paths required to boost the current 10 Hz monoenergetic gamma-ray (MEGa-Ray) technology to an effective repetition rate exceeding 1 kHz, potentially increasing the average gamma-ray brightness by two orders of magnitude. Multiple bunches must be of exceedingly high quality to produce narrow-bandwidth gamma-rays. Modeling efforts will be presented, along with plans for a multi-bunch test stand at LLNL. The test stand will consist of a 5.5 cell X-band rf photoinjector, single accelerator section, and beam diagnostics. The photoinjector will be a high gradient standing wave structure, featuring a dual feed racetrack coupler. The accelerator will increase the electron energy so that the emittance can be measured using quadrupole scanning techniques. Multi-bunch diagnostics will be developed so that the beam quality can be measured and compared with theory. Design will be presented with modeling simulations, and layout plans.
Keywords Accelerators
Beam diagnostics
Brightness
Compton effect
Design
Electrons
Gamma rays
Gradients
Magnitude
Optimization
Quadrupoles
Simulation

 
Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 46 - Physics
Corporate Author Stanford Research Inst., Menlo Park, CA.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1303
Contract Number DE-AC02-76SF00515

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