Development of a 100 Joule level XeCl laser pumped by intense relativistic electron beam

Author

Liu, J.R. ; Sun, R.F. ; Qiu, A.C. ; Yuan, X. ; Gazi, Y.G. ; Wang, X.H. ; Zhang, Y.M. ; Zhao, X.Q. ; Ren, S.Q. ; Nie, L. ; Yao, D.S. ; Wang, L.G. ; Zhang, M. ; Wei, Y.M. ; Wang, L.H.

Author_Institution

Northaest Inst. of Nucl. Technol., Xian, China

Volume

3

fYear

1992

fDate

25-29 May 1992

Firstpage

1918

Lastpage

1923

Abstract

A 100 J level XeCl laser pumped by an intense relativistic electron beam — FLASH II was constructed at Northwest Institute of Nuclear Technology. in China. FLASH II is a low impedance REB accelerator. It consists of a 64 stage Marx generator, pulse forming line, field-distortion main switch, pulse transmission line, output lineand diode. The cathode of diode for laser pumping is a 15 × 60 cm long multi-point copper plate or graphite plane plate. The anode and pressure foils are both 25 micron Ti. The voltage of diode is measured to be 650–750 kv and the current 290–350 kA. The pump power density ranges between 1.5–2.0 MW/cm³. The aperture of laser cell is 20 × 20 cm and the effective excitation volume is 24 liters. We have obtained the laser output energy of I36 J with a parallel-plane resonator and 1.5 mrad divergence angle from an unstable resonator. The laser power is measured to be more than 10⁹ W.

Keywords

Gas lasers; Laser excitation; Measurement by laser beam; Pump lasers; Semiconductor lasers; Switches; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

High-Power Particle Beams, 1992 9th International Conference on

Conference_Location

Washington, DC, USA

Print_ISBN

000-0-0000-0000-0

Type

conf

Filename

6306840