Discrete cavity model of a standing-wave free-electron laser

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A standing-wave free-electron laser (SWFEL) has been proposed for use in a two-beam accelerator (TBA). Unlike a conventional microwave free-electron laser, the SWFEL has a wiggler that is divided by irises into a series of standing-wave cavities, and the beam is reaccelerated by induction cells between cavities. We introduce a one-dimensional discrete-cavity model of the SWFEL. In contrast to the continuum model that has been extensively used to study the device, the new model takes into account time-of-flight effects within the cavity and applies the reacceleration field only between cavities, where the pondermotive force is absent. As in previous SWFEL ... continued below

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Pages: (14 p)

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Rangarajan, G.; Sessler, A. (Lawrence Berkeley Lab., CA (United States)) & Sharp, W.M. (Lawrence Livermore National Lab., CA (United States)) August 1, 1991.

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Description

A standing-wave free-electron laser (SWFEL) has been proposed for use in a two-beam accelerator (TBA). Unlike a conventional microwave free-electron laser, the SWFEL has a wiggler that is divided by irises into a series of standing-wave cavities, and the beam is reaccelerated by induction cells between cavities. We introduce a one-dimensional discrete-cavity model of the SWFEL. In contrast to the continuum model that has been extensively used to study the device, the new model takes into account time-of-flight effects within the cavity and applies the reacceleration field only between cavities, where the pondermotive force is absent. As in previous SWFEL models, only a single frequency is considered. Using this model, effects of finite cavity length are investigated. For moderately long cavities, it is shown that there are no adverse effects on the phase stability of the device. 4 refs., 3 figs., 1 tab.

Physical Description

Pages: (14 p)

Notes

OSTI; NTIS; INIS; GPO Dep.

Source

  • 13. international free-electron laser (FEL) conference, Santa Fe, NM (United States), 25-30 Aug 1991

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  • Other: DE92000839
  • Report No.: LBL-31197
  • Report No.: CONF-9108118--10
  • Grant Number: AC03-76SF00098
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5232242
  • Archival Resource Key: ark:/67531/metadc1065933

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • August 1, 1991

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  • Feb. 4, 2018, 10:51 a.m.

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  • April 25, 2018, 5:59 p.m.

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Rangarajan, G.; Sessler, A. (Lawrence Berkeley Lab., CA (United States)) & Sharp, W.M. (Lawrence Livermore National Lab., CA (United States)). Discrete cavity model of a standing-wave free-electron laser, article, August 1, 1991; [Berkeley,] California. (digital.library.unt.edu/ark:/67531/metadc1065933/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.