100-KILOVOLT CERAMIC-METAL THYRATRON.
Quarterly progress rept. no. 4, 15 Jul-14 Oct 64,
ITT ELECTRON TUBE DIV EASTON PA
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The operating characteristics of a four-grid ceramic hydrogen thyratron tube were investigated in a voltage range up to epy 40 KV and at pulse repetition rates from 500 to 5000 pps. A special pulse forming network was utilized in these tests. Hot ranges, anode take-over time and a minimum voltage, and D-C breakdown voltages between electrodes were determined. These results, and the performance of the tube demonstrate that the concept followed in the design of this tube is successful and that electrical breakdown between closely spaced grid seals is effectively prevented. It is felt than an understanding of commutation in multi-grid tubes is the basic problem of this investigation. Observations made on this first tube seem to indicate that the processes involved in commutation are complex and depend on electrode geometry and discharge conditions. This investigation will be continued with the objective of clarifying this mechanism and applying it to multigrid tube design. The 100 KV network which was designed and built for this work was operated in connection with a Senior II test set. Author