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

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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.

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4 pages

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Tatchyn, R. & /SLAC February 17, 2006.

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Description

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.

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4 pages

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  • Presented at the 27th International Free Electron Laser Conference (FEL 2005), Stanford, California, 22-26 August 2005

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  • Report No.: SLAC-PUB-11602
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 876446
  • Archival Resource Key: ark:/67531/metadc875905

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  • February 17, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 2, 2016, 12:25 p.m.

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Tatchyn, R. & /SLAC. Spectral-Angular Characteristics of the LCLS in the Near and Far Fields, article, February 17, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc875905/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.