The polarized photoinjector at Jefferson Lab continues to provide high average current, high polarization, high quality beam to nuclear physics Users in as many as three endstations simultaneously. Long lifetime operation has been obtained from two identical polarized guns. A new high power modelocked ti-sapphire laser has been constructed to enhance the effective operating lifetime of the photoinjector. Efforts to enhance beam polarization and reduced helicity correlated beam systematic effects are underway. This work supported DOE Contract DE-AC05-84ER40150.

In AIP Conference Proceedings, June 1, 2001, Volume 570, Issue 1, pp. 943-948. Presented at the Workshop on Polarized Electron Sources and Polarimeters, Nagoya, Japan, October 12-14, 2000.

Author(s): Matt Poelker, P. Adderley, J. Clark, A. Day, Joseph Grames, J. Hansknecht, P. Hartmann, R. Kazimi, P. Rutt, Charles Sinclair, M. Steigerwald

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