High Brightness Electron Beam Studies at the NSLS SDL [electronic resource].
- Published:
- Washington, D.C. : United States. Dept. of Energy, 2009.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Additional Creators:
- Brookhaven National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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- Restrictions on Access:
- Free-to-read Unrestricted online access
- Summary:
- Experimental optimization of electron beam brightness at the NSLS SDL is reported in this paper. Using a high quantum efficiency (QE) Mg metal cathode and the S-band BNL-type RF gun, we have systematically studied electron beams transverse and longitudinal emittance. The measured thermal emittance for the Mg cathode is 0.85±0.04 mm-mrad/mm, which contradicts the current thermal emittance model. For a 50 pC beam, measured normalized transverse and longitudinal RMS emittance are 0.6 mm-mrd and 5.2 ps-keV, respectively. The smallest projected transverse emittance observed for a 20 pC charge is 0.15 ± 0.02 mm-mrad.
- Report Numbers:
- E 1.99:bnl--82277-2009-cp
bnl--82277-2009-cp - Subject(s):
- Other Subject(s):
- Note:
- Published through SciTech Connect.
05/04/2009.
"bnl--82277-2009-cp"
"KC0204011"
Particle Accelerator Conference 2009; Vancouver, Canada; 20090504 through 20090508.
Murphy, J. B.; Wang, X. J.; Yang, X.; Tang, C. X.; Podobedov, B.; Shen, Y.; Hidaka, Y.; Qian,H.; Seletskiy, S. - Funding Information:
- DE-AC02-98CH10886
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