Experiments for the evaluation of a cold cathode electron gun are described. Different anode and cathode materials and configurations were tried. Small signal gains of 6.3 percent/cm were measured. It was found that the same small signal gains could be obtained with less energy deposition in the laser gas with the larger pre-ionizing currents from a cold cathode. Long-duration pulses were observed that were limited only by the electrical energy available in the Marx bank. (auth)
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Los Alamos Scientific Lab., N.Mex. (USA)
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New Mexico
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Experiments for the evaluation of a cold cathode electron gun are described. Different anode and cathode materials and configurations were tried. Small signal gains of 6.3 percent/cm were measured. It was found that the same small signal gains could be obtained with less energy deposition in the laser gas with the larger pre-ionizing currents from a cold cathode. Long-duration pulses were observed that were limited only by the electrical energy available in the Marx bank. (auth)
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