PAC09 - List of Authors (Rusnak, B.)

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Rusnak, B.

Paper	Title	Page
TU5RFP043	Design of a 250 MeV, X-Band Photoinjector Linac for a Precision Compton-Scattering Based Gamma-Ray Source	1186
	S.G. Anderson, F. Albert, C.P.J. Barty, D.J. Gibson, F.V. Hartemann, D.P. McNabb, M. J. Messerly, B. Rusnak, M. Shverdin, C. Siders LLNL, Livermore, California S.G. Tantawi, A.E. Vlieks SLAC, Menlo Park, California
	Funding: This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. We present a compact, X-band, high-brightness accelerator design suitable for driving a precision gamma-ray source. Future applications of gamma-rays generated by Compton-scattering of laser and relativistic electron beams place stringent demands on the brightness and stability of the incident electron beam. This design identifies the beam parameters required for gamma-ray production, including position, and pointing stability. The design uses an emittance compensated, 11.4 GHz photo-gun and linac to generate 400 pC, 1-2 mm-mrad electron bunches at up to 250 MeV and 120 Hz repetition rate. The effects of jitter in the photo-cathode laser and RF power system are analyzed as well as structure and optic misalignments and wakefields. Finally, strategies for the mitigation of on-axis bremsstrahlung noise are discussed.

Paper

Title

Page

TU5RFP043

Design of a 250 MeV, X-Band Photoinjector Linac for a Precision Compton-Scattering Based Gamma-Ray Source

1186

S.G. Anderson, F. Albert, C.P.J. Barty, D.J. Gibson, F.V. Hartemann, D.P. McNabb, M. J. Messerly, B. Rusnak, M. Shverdin, C. Siders
LLNL, Livermore, California
S.G. Tantawi, A.E. Vlieks
SLAC, Menlo Park, California

Funding: This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.

We present a compact, X-band, high-brightness accelerator design suitable for driving a precision gamma-ray source. Future applications of gamma-rays generated by Compton-scattering of laser and relativistic electron beams place stringent demands on the brightness and stability of the incident electron beam. This design identifies the beam parameters required for gamma-ray production, including position, and pointing stability. The design uses an emittance compensated, 11.4 GHz photo-gun and linac to generate 400 pC, 1-2 mm-mrad electron bunches at up to 250 MeV and 120 Hz repetition rate. The effects of jitter in the photo-cathode laser and RF power system are analyzed as well as structure and optic misalignments and wakefields. Finally, strategies for the mitigation of on-axis bremsstrahlung noise are discussed.