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Spectral-Angular Characteristics of the LCLS in the Near and Far Fields

R. Tatchyn

出版	United States. Department of Energy, 2006
URL	http://books.google.com.hk/books?id=VZH9jwEACAAJ&hl=&source=gbs_api

註釋

The unusually long insertion devices being prepared for Angstrom-wavelength Free Electron Lasers (FELs) will generate spectral-angular distributions in the proposed experimental areas substantially different from those conventionally calculated for the far field. In this paper we report on computational simulations of near vs. far field distributions for the SLAC linac Coherent Light Source (LCLS) undulator, an insertion device approximately 140 meters long. The properties of the coherent radiation as a limiting case of the near-field emission, for the special condition of a microbunched beam radiating along the undulator axis, are reviewed.