The drive laser for the APS LEUTL FEL RF photoinjector.

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The APS LEUTL free-electron laser (FEL) is a high-gain, short-wavelength device requiring a high-current, low-emittance beam. An rf photoinjector driven by a laser is used to provide the requisite beam. The drive laser consists of a diode-pumped Nd:Glass oscillator and a chirped pulse amplification (CPA) system consisting of a grating stretcher, a flashlamp-pumped Nd:Glass regenerative amplifier, and a grating compressor. The system generates 4-mj pulses in the R with a pulse length as short as 2 ps FWHM and a repetition rate of 6 Hz. Nonlinear doubling crystals are used to generate fourth-harmonic output of {approx}500 {micro}J in the UV ... continued below

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4 p.

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Arnold, N.; Koldenhoven, R. & Travish, G. September 1, 1999.

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Description

The APS LEUTL free-electron laser (FEL) is a high-gain, short-wavelength device requiring a high-current, low-emittance beam. An rf photoinjector driven by a laser is used to provide the requisite beam. The drive laser consists of a diode-pumped Nd:Glass oscillator and a chirped pulse amplification (CPA) system consisting of a grating stretcher, a flashlamp-pumped Nd:Glass regenerative amplifier, and a grating compressor. The system generates 4-mj pulses in the R with a pulse length as short as 2 ps FWHM and a repetition rate of 6 Hz. Nonlinear doubling crystals are used to generate fourth-harmonic output of {approx}500 {micro}J in the UV (263 nm), which is required to exceed the work function of the copper cathode in the gun. This paper describes the drive laser as well as the extensive controls implemented to allow for remote operation and monitoring. Performance measurements as well as the operating experience are presented.

Physical Description

4 p.

Notes

INIS; OSTI as DE00011813

Medium: P; Size: 4 pages

Source

  • 21st International Free Electron Laser Conference, Hamburg (DE), 08/23/1999--08/28/1999

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  • Report No.: ANL/ASD/CP-99049
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 11813
  • Archival Resource Key: ark:/67531/metadc623360

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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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  • September 1, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 10, 2017, 7:51 p.m.

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Arnold, N.; Koldenhoven, R. & Travish, G. The drive laser for the APS LEUTL FEL RF photoinjector., article, September 1, 1999; Illinois. (digital.library.unt.edu/ark:/67531/metadc623360/: accessed December 9, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.