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The effects of heating electrodes, and diamond turning of these electrode surfaces to a mirror finish upon an electrical breakdown in a vacuum were investigated. The electrode material used was oxygen-free copper. It was found that the mirror finish obtained by diamond turning reduces the number of repetitive breakdowns to achieve higher hold-off voltages, (conditioning of the vacuum gaps by repetitive...
Secondary ion mass spectrometry (SIMS) is a sensitive analysis method for hydrogen. In this paper, SIMS is used to observe the hydrogen desorption from copper caused by an ion bombardment, and the measurements reveal the following: hydrogen ion intensity is reduced by the industrial manufacturing procedure of copper, i.e. intermediate annealing and cold working. The less porosities the copper includes,...
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