A demonstration of multi-bunch operation in the LCLS

F. J. Decker, R. Akre, A. Brachmann, Y. Ding, D. Dowell, P. J. Emma, A. Fisher, J. Frisch, S. Gilevich, Ph Hering, Z. Huang, R. Iverson, H. Loos, M. Messerschmidt, H. D. Nuhn, D. Ratner, W. F. Schlotter, T. Smith, J. L. Turner, J. WelchW. White, J. Wu

Research output: Contribution to conferencePaperpeer-review

19 Scopus citations


The Linac Coherent Light Source at SLAC is a hard X-ray FEL which was designed for single electron bunch operation. Although most user experiments are not interested in multiple bunches from an S-band linac due to their short (ns) separation, there are some advantages with multi-bunch operation. Starting with two bunches where the delayed light of one bunch is used to seed the light of a second bunch, to many more bunches to increase the likelihood of rare target collisions, multi-bunch operation would open more options for the LCLS. In the past the SLAC Linac has operated with a few dedicated bunches for the SLC (Stanford Linear Collider), and up to 1400 bunches for some fixed target experiments, so a few bunches for the LCLS seems possible even with the original single bunch design. This paper will describe how the current RF implementation supports multi-bunch operation. Initial experimental tests with two bunches are presented.

Original languageEnglish (US)
Number of pages4
StatePublished - 2010
Externally publishedYes
Event32nd International Free Electron Laser Conference, FEL 2010 - Malmo City, Sweden
Duration: Aug 23 2010Aug 27 2010


Other32nd International Free Electron Laser Conference, FEL 2010
CityMalmo City

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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