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Forestier B, Fontaine B. Pulsed blowdown-electron gun facility for low-temperature and high-pressure supersonic flow electronic transition lasers. Rev Sci Instrum. 1979;50(4):421doi: 10.1063/1.1135843.
Forestier, B., & Fontaine, B. (1979). Pulsed blowdown-electron gun facility for low-temperature and high-pressure supersonic flow electronic transition lasers. The Review of scientific instruments, 50(4), 421. https://doi.org/10.1063/1.1135843
Forestier, B, and Fontaine, B. "Pulsed blowdown-electron gun facility for low-temperature and high-pressure supersonic flow electronic transition lasers." The Review of scientific instruments vol. 50,4 (1979): 421. doi: https://doi.org/10.1063/1.1135843
Forestier B, Fontaine B. Pulsed blowdown-electron gun facility for low-temperature and high-pressure supersonic flow electronic transition lasers. Rev Sci Instrum. 1979 Apr;50(4):421. doi: 10.1063/1.1135843. PMID: 18699524.
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Rev Sci Instrum. 1979 Apr;50(4):421. doi: 10.1063/1.1135843.

Pulsed blowdown-electron gun facility for low-temperature and high-pressure supersonic flow electronic transition lasers.

The Review of scientific instruments

B Forestier, B Fontaine

Affiliations

  1. Institute of Fluid Mechanics, Aix-Marseille II University, 13003 Marseille, France.

PMID: 18699524 DOI: 10.1063/1.1135843

Abstract

The design of a small compact pulsed blowdown apparatus coupled to a cold cathode electron gun is described. This system allows the excitation of a gas mixture in supersonic flow at temperatures of 80 and 120 K and density of 1 amagat with a maximum electron beam current density of 20 A cm(-2) at 300 kV and pulse length of 0.5 mus. With this facility it has been possible, using aerodynamic cooling, to achieve high-power, long-pulse ultraviolet laser operation in a high-pressure active medium on XeF and Ne ii ion transitions. A strong increase in fluorescence intensity was also obtained for numerous atomic lines and molecular bands of interest for the developement of high-power, high-efficiency, visible and ultraviolet lasers.

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