ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
The design and performance of a secondary emission electron gun with a wire ionized plasma as an ion source is discussed. An electron beam current density of up to 100 mA/cm2 is obtained over an area of 55×5 cm2 at a cathode voltage of 250 kV in pulses with a duration of about 20 μs. The current distribution over the beam area is uniform to better than 25%. The achieved combination of pulse duration, beam current, and electron energy is attractive to excite high-pressure gas laser media. Preliminary results with the utilization of the gun in an electron beam sustained discharge excited atomic Xe laser show an output energy of 1 J/l at a wavelength of λ=1.73 μm.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1144582
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