ENERGY DEPOSITION MEASUREMENTS OF A LARGE-DIAMETER, INTENSE RELATIVISTIC ELECTRON BEAM FOR HIGH-POWER GAS LASER EXCITATION.

Tadashi Suzuki, Fumihiko Kannari, Minoru Obara, Tomoo Fujioka

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Measurements of electron-beam (e-beam) energy deposition in gaseous medium by a segmented totally stopping calorimeter and a pressure jump method are described, both of which gave the same values. Typical e-beam parameters are 2 MV, 80 kA, and 65 ns (FWHM). The e-beam cross-sectional area is 10 cm in diameter. First, the radial distribution of the e-beam current generated from the field-emission diode as a function of the axial magnetic field was measured. Next, for applications to longitudinal excitation of the high-power gas lasers, the e-beam energy deposition characteristics are measured in N//2 for the propagation distance up to 2. 3 m in terms of the axial magnetic field, the N//2 gas pressure, and the radial e-beam distribution.

Original languageEnglish
Pages (from-to)472-476
Number of pages5
JournalReview of Scientific Instruments
Volume55
Issue number4
DOIs
Publication statusPublished - 1984 Apr

Fingerprint

Gas lasers
Laser excitation
gas lasers
relativistic electron beams
High power lasers
high power lasers
Electron beams
electron beams
excitation
energy
Magnetic fields
Full width at half maximum
beam currents
Calorimeters
stopping
magnetic fields
radial distribution
Field emission
gas pressure
calorimeters

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Instrumentation

Cite this

ENERGY DEPOSITION MEASUREMENTS OF A LARGE-DIAMETER, INTENSE RELATIVISTIC ELECTRON BEAM FOR HIGH-POWER GAS LASER EXCITATION. / Suzuki, Tadashi; Kannari, Fumihiko; Obara, Minoru; Fujioka, Tomoo.

In: Review of Scientific Instruments, Vol. 55, No. 4, 04.1984, p. 472-476.

Research output: Contribution to journalArticle

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