PAC09 - List of Authors (Bakeman, M.S.)

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Bakeman, M.S.

Paper	Title	Page
WE6RFP074	Undulator-Based Laser Wakefield Accelerator Electron Beam Diagnostic	2967
	M.S. Bakeman, W. Leemans, K. Nakamura, K.E. Robinson, C.B. Schroeder, C. Tóth LBNL, Berkeley, California
	Funding: US Department of Energy contract No. DE-AC02-05CH11231, and NSF Grant 0614001 We discuss the design and current status of experiments to couple the THUNDER undulator to the Lawrence Berkeley National Laboratory (LBNL) laser wakefield accelerator (LWFA). Currently the LWFA has achieved quasi-monoenergetic electron beams with energies up to 1 GeV. These ultra-short, high-peak-current, electron beams are ideal for driving a compact XUV free electron laser (FEL). Understanding the electron beam properties such as the energy spread and emittance is critical for achieving high quality light sources with high brightness. By using an insertion device such as an undulator and observing changes in the spontaneous emission spectrum, the electron beam energy spread and emittance can be measured with high precision. The initial experiments will use spontaneous emission from 1.5 m of undulator. Later experiments will use up to 5 m of undulator with a goal of a high gain, XUV FEL. W.P. Leemans et al., Nature Physics, Volume 2, Issue 10, pp. 696-699 (2006). **C.B. Schroeder et al., Proceedings AAC08 Conference (2008).

Paper

Title

Page

WE6RFP074

Undulator-Based Laser Wakefield Accelerator Electron Beam Diagnostic

2967

M.S. Bakeman, W. Leemans, K. Nakamura, K.E. Robinson, C.B. Schroeder, C. Tóth
LBNL, Berkeley, California

Funding: US Department of Energy contract No. DE-AC02-05CH11231, and NSF Grant 0614001

We discuss the design and current status of experiments to couple the THUNDER undulator to the Lawrence Berkeley National Laboratory (LBNL) laser wakefield accelerator (LWFA). Currently the LWFA has achieved quasi-monoenergetic electron beams with energies up to 1 GeV*. These ultra-short, high-peak-current, electron beams are ideal for driving a compact XUV free electron laser (FEL)**. Understanding the electron beam properties such as the energy spread and emittance is critical for achieving high quality light sources with high brightness. By using an insertion device such as an undulator and observing changes in the spontaneous emission spectrum, the electron beam energy spread and emittance can be measured with high precision. The initial experiments will use spontaneous emission from 1.5 m of undulator. Later experiments will use up to 5 m of undulator with a goal of a high gain, XUV FEL.

*W.P. Leemans et al., Nature Physics, Volume 2, Issue 10, pp. 696-699 (2006).
**C.B. Schroeder et al., Proceedings AAC08 Conference (2008).