50 J discharge-pumped XeCl laser

Journal Article · Sun Jan 01 04:00:00 EST 1989 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/3.16250· OSTI ID:6404179

Hasama, T; Miyazaki, K; Yamada, K; Sato, T ^[1]

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1. Laser Section, Radio- and Opto-Electronics Div., Electrochemical Lab., Ibaraki 305 (JP)

An x-ray preionized XeCl laser with a wide aperture of 10 x 10 cm/sup 2/ has been described in detail. The number density of preionization electrons has been estimated from an X-ray energy distribution to be greater than 6 x 10/sup 9/ cm/sup -3/ under operational gas conditions. In high pressure operation at 4500 torr, the sufficient preionization has led to the successful discharge-breakdown at a low E/N of 6.4 x 10/sup -17/ V . cm/sup 2/, resulting in a high electrical efficiency of 3.1 percent with an output energy of 17.6 J. An output energy of 50 J in an 85 ns (FWHM) optical pulse has been extracted from an active volume of about 10.1 for a pulse-forming-line (PFL) voltage of 400 kV. The effects of impedance transformation of a pulse-transmission-line (PTL) following the PFL have been investigated using two types of PTL with output impedances of 0.26 and 0.48 ..cap omega... It is also demonstrated, using a laser triggering technique, that the single-channel breakdown operation of a rail-gap switch, placed between the PFL and the PTL, gives better output characteristics than multichannel breakdown operation.

• OSTI ID: 6404179
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. 25:1; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CHLORIDES
CHLORINE COMPOUNDS
DESIGN
EFFICIENCY
ELECTRON DENSITY
GAS LASERS
HALIDES
HALOGEN COMPOUNDS
LASER MATERIALS
LASERS
MATERIALS
RARE GAS COMPOUNDS
X-RAY LASERS
XENON CHLORIDES
XENON COMPOUNDS