Dale L. Schrage (LANL)
The static and dynamic structural behavior of superconducting cavities for various projects was determined by finite element structural analysis. The beta = 0.604 cavity shape for the Neutron Science Project was studied in detail and found to meet all design requirements if fabricated from five millimeter thick material with a single annular stiffener. This 600 MHz cavity will have a Lorentz coefficient of -1 Hz/(Mv/meter)2 and a lowest structural resonance of more than 100 Hz. Cavities at beta = 0.48, 0.61, and 0.77 were analyzed for a Neutron Science Project concept which would incorporate 7-cell cavities. The medium and high beta cavities were found to meet all criteria but it was not possible to generate a beta = 0.48 with a Lorentz coefficient of less than -3 Hz/(Mv/meter)2.
*Work sponsored by the Japan Atomic Energy Research Institute under contract DE-FI04-91AL73477-A012
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