Emittance Studies of the BNL/SLAC/UCLA 1.6 Cell Photocathode RF Gun

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The symmetrized 1.6 cell S-band photocathode gun developed by the BNL/SLAC/UCLA collaboration is in operation at the Brookhaven Accelerator Test Facility (ATF). A novel emittance compensation solenoid magnet has also been designed, built and is in operation at the ATF. These two subsystems form an emittance compensated photoinjector used for beam dynamics, advanced acceleration and free electron laser experiments at the ATF. The highest acceleration field achieved on the copper cathode is 150 MV/m, and the guns normal operating field is 130 MV/m. The maximum rf pulse length is 3 {mu}s. The transverse emittance of the photoelectron beam were measured ... continued below

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3 pages

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Palmer, D.T.; /SLAC; Wang, X.J.; /Brookhaven; Miller, R.H.; /SLAC et al. September 9, 2011.

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Description

The symmetrized 1.6 cell S-band photocathode gun developed by the BNL/SLAC/UCLA collaboration is in operation at the Brookhaven Accelerator Test Facility (ATF). A novel emittance compensation solenoid magnet has also been designed, built and is in operation at the ATF. These two subsystems form an emittance compensated photoinjector used for beam dynamics, advanced acceleration and free electron laser experiments at the ATF. The highest acceleration field achieved on the copper cathode is 150 MV/m, and the guns normal operating field is 130 MV/m. The maximum rf pulse length is 3 {mu}s. The transverse emittance of the photoelectron beam were measured for various injection parameters. The 1 nC emittance results are presented along with electron bunch length measurements that indicated that at above the 400 pC, space charge bunch lengthening is occurring. The thermal emittance, {epsilon}{sub o}, of the copper cathode has been measured.

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3 pages

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  • Journal Name: Conf.Proc.C970512:2687,1997; Conference: 17th IEEE Particle Accelerator Conference (PAC 97): Accelerator Science, Technology and Applications, 12-16 May 1997, Vancouver, British Columbia, Canada

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  • Report No.: SLAC-PUB-14581
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 1024175
  • Archival Resource Key: ark:/67531/metadc841009

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  • September 9, 2011

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  • May 19, 2016, 3:16 p.m.

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  • Dec. 5, 2016, 3 p.m.

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Palmer, D.T.; /SLAC; Wang, X.J.; /Brookhaven; Miller, R.H.; /SLAC et al. Emittance Studies of the BNL/SLAC/UCLA 1.6 Cell Photocathode RF Gun, article, September 9, 2011; United States. (digital.library.unt.edu/ark:/67531/metadc841009/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.