Electromagnetic forces related to flash-lamp failures in the Nova/Novette amplifiers

Computer Science

Scientific paper

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Amplifiers, Electromagnetic Fields, Failure, Flash Lamps, Neodymium Lasers, Anodes, Bending, Cathodes

Scientific paper

A high rate of breakage in flashlamps destined for the Nova and Novette laser system amplifiers has prompted an investigation into the cause. Discussed herein is the possibility that electromagnetic forces (resulting from large currents in these lamps) are bending the anodes and cathodes and, thus, cracking the glass seals. Specifically, the forces resulting from these currents are approximated without indicating whether or not these forces are sufficient to break the seals. The results demonstrate that forces up to .9 N/cm (.514 lbs/in.) directed away from the reflector panel can be distributed along the anodes and cathodes. Also, the scalloped nature of the panel provides good isolation between lamps; the lamp to lamp forces are negligible. Time domain plots of the forces are included as well as the computer program which was developed.

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