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Proceedings Paper

First operation of a photoinjector at high-average power
Author(s): David H. Dowell; Keith J. Davis; K. D. Friddell; E. L. Tyson; Christy A. Lancaster; L. D. Milliman; Robert E. Rodenburg; T. Aas; M. Bemes; S. Z. Bethel; Patrick E. Johnson; K. Murphy; C. Whelen; John L. Adamski; Denis J. Pistoresi; Donald R. Shoffstall; George E. Busch; Dennis K. Remelius
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Paper Abstract

Tests of the Boeing Average Power Laser Experiment injector have demonstrated first-time operation of a photocathode RF gun electron accelerator at 25% duty factor. The multi-alkali photocathode was illuminated by a frequency-doubled, mode-locked Nd:YLF laser. The cathode was placed in the first cell of four single-cell cavities resonant at 433 MHz. The 4 cavities accelerated the beam to 5 MeV. The pulse duration was 8.3 ms and the repetition rate was 30 Hz. True average beam currents of up to 35 mA have been accelerated to 5 MeV for an average beam power of 170 kilowatts. The 35 mA beam current exceeded previous photocathode performance by a factor of 1000.

Paper Details

Date Published: 29 November 1993
PDF: 5 pages
Proc. SPIE 2013, Electron-Beam Sources of High-Brightness Radiation, (29 November 1993); doi: 10.1117/12.164801
Show Author Affiliations
David H. Dowell, Boeing Defense & Space Group (United States)
Keith J. Davis, Boeing Defense & Space Group (United States)
K. D. Friddell, Boeing Defense & Space Group (United States)
E. L. Tyson, Boeing Defense & Space Group (United States)
Christy A. Lancaster, Boeing Defense & Space Group (United States)
L. D. Milliman, Boeing Defense & Space Group (United States)
Robert E. Rodenburg, Boeing Defense & Space Group (United States)
T. Aas, Boeing Defense & Space Group (United States)
M. Bemes, Boeing Defense & Space Group (United States)
S. Z. Bethel, Boeing Defense & Space Group (United States)
Patrick E. Johnson, Boeing Defense & Space Group (United States)
K. Murphy, Boeing Defense & Space Group (United States)
C. Whelen, Boeing Defense & Space Group (United States)
John L. Adamski, Boeing Defense & Space Group (United States)
Denis J. Pistoresi, Boeing Defense & Space Group (United States)
Donald R. Shoffstall, Boeing Defense & Space Group (United States)
George E. Busch, Los Alamos National Lab. (United States)
Dennis K. Remelius, Los Alamos National Lab. (United States)


Published in SPIE Proceedings Vol. 2013:
Electron-Beam Sources of High-Brightness Radiation
Henry P. Freund, Editor(s)

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