Subharmonic triple buncher for a high-efficiency free-electron laser

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A high-efficiency free-electron laser oscillator experiment is being constructed at Los Alamos National Laboratory. A buncher system has been designed to deliver 30-ps, 5-nC electron bunches to a 20-MeV standing-wave linac at the 60th subharmonic of the 1300-MHz accelerator frequency. The first 108.3-MHz buncher cavity accepts a 5-ns, 5-A peak current pulse from a triode gun. Following a 120-cm drift space, a second 108.3-MHz cavity is used, primarily to enhance the bunching of the trailing half of the bunch. A 1300-MHz cavity with 20-cm drift spaces at each end completes the beamline components. The bunching process continues into the linac's ... continued below

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Pages: 4

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Fraser, J.S. January 1, 1983.

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Description

A high-efficiency free-electron laser oscillator experiment is being constructed at Los Alamos National Laboratory. A buncher system has been designed to deliver 30-ps, 5-nC electron bunches to a 20-MeV standing-wave linac at the 60th subharmonic of the 1300-MHz accelerator frequency. The first 108.3-MHz buncher cavity accepts a 5-ns, 5-A peak current pulse from a triode gun. Following a 120-cm drift space, a second 108.3-MHz cavity is used, primarily to enhance the bunching of the trailing half of the bunch. A 1300-MHz cavity with 20-cm drift spaces at each end completes the beamline components. The bunching process continues into the linac's first three accelerating cells. Two thin iron-shielded lenses and seven large-diameter solenoids provide axial magnetic fields for radial focusing.

Physical Description

Pages: 4

Notes

NTIS, PC A02/MF A01.

Source

  • Particle accelerator conference, Santa Fe, NM, USA, 21 Mar 1983

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  • Other: DE83009957
  • Report No.: LA-UR-83-706
  • Report No.: CONF-830311-70
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 6445956
  • Archival Resource Key: ark:/67531/metadc1208470

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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.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 1983

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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  • Oct. 30, 2018, 12:10 p.m.

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Fraser, J.S. Subharmonic triple buncher for a high-efficiency free-electron laser, article, January 1, 1983; United States. (digital.library.unt.edu/ark:/67531/metadc1208470/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.