Beam diagnostics challenges for future FELs

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Designs are being developed to produce diffraction-limited sources based on storage-ring free-electron lasers (FELs) for the VUV and soft x-ray regime and linac-driven FELs in the few {Angstrom} regime. The requirements on the beam quality in transverse emittance (rms, normalized) of 1-2 {pi} mm mrad, bunch length (1 ps to 100 fs), and peak current (1 to 5 kA) result in new demands on the diagnostics. The diagnostics challenges include spatial resolution (1-10 {mu}m), temporal resolution (<100 fs), and single-pulse position measurements ({approximately}1 {mu}m). Examples of recent submicropulse (slice) work are cited as well as concepts based on spontaneous emission ... continued below

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10 p.

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Lumpkin, A.H. April 1, 1997.

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Description

Designs are being developed to produce diffraction-limited sources based on storage-ring free-electron lasers (FELs) for the VUV and soft x-ray regime and linac-driven FELs in the few {Angstrom} regime. The requirements on the beam quality in transverse emittance (rms, normalized) of 1-2 {pi} mm mrad, bunch length (1 ps to 100 fs), and peak current (1 to 5 kA) result in new demands on the diagnostics. The diagnostics challenges include spatial resolution (1-10 {mu}m), temporal resolution (<100 fs), and single-pulse position measurements ({approximately}1 {mu}m). Examples of recent submicropulse (slice) work are cited as well as concepts based on spontaneous emission radiation (SER). The nonintercepting aspects of some of these diagnostics should also be applicable to high-power FELs.

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10 p.

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OSTI as DE97004678

Medium: P; Size: 10 p.

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  • Free electron laser (FEL) challenges conference, San Jose, CA (United States), 12-15 Feb 1997

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  • Other: DE97004678
  • Report No.: ANL/ASD/CP--92683
  • Report No.: CONF-970255--3
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 471380
  • Archival Resource Key: ark:/67531/metadc674843

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  • April 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • April 6, 2017, 7:11 p.m.

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Lumpkin, A.H. Beam diagnostics challenges for future FELs, article, April 1, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc674843/: accessed July 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.