Numerical Study of Coulomb Scattering Effects on Electron Beamfrom a Nano-Tip [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2007. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Additional Creators:
- United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Nano-tips with high acceleration gradient around the emission surface have been proposed to generate high brightness beams. However, due to the small size of the tip, the charge density near the tip is very high even for a small number of electrons. The stochastic Coulomb scattering near the tip can degrade the beam quality and cause extra emittance growth and energy spread. In the paper, we present a numerical study of these effects using a direct relativistic N-body model. We found that emittance growth and energy spread, due to Coulomb scattering, can be significantly enhanced with respect to mean-field space-charge calculations.
- Published through SciTech Connect., 06/25/2007., "lbnl--62090", ": KA1401030", Particle Accelerator Conference 07, Albuquerque,New Mexico, June 25-29, 2007., Zolotorev, Max; Qiang, Ji; Wan, Weishi; Lidia, Steven M.; Corlett, John N.; Padmore, HowardA.; Zholent, Andrew A., and Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
- Funding Information:
- DE-AC02-05CH11231 and 453401
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