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| THPB062 |
Accelerated Life Testing of LCLS-II Cavity Tuner Motor |
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- N.A. Huque, M.E. Abdelwhab, E. Daly
JLab, Newport News, Virginia, USA
- Y.M. Pischalnikov
Fermilab, Batavia, Illinois, USA
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An Accelerated Life Test (ALT) of the Phytron stepper motor used in the LCLS-II cavity tuner is being carried out at JLab. Since the motor will reside inside the cryomodule, any failure would lead to a very costly and arduous repair. As such, the motor will be tested for the equivalent of five lifetimes before being approved for use in the production cryomodules. The 9-cell LCLS-II cavity will be simulated by disc springs with an equivalent spring constant. Hysteresis plots of the motor position vs. tuner position – measured via an installed linear variable differential transformer (LVDT) – will be used to determine any drift from the required performance. The titanium spindle will also be inspected for loss of lubrication. This paper outlines the ALT plan and latest results.
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Poster THPB062 [2.794 MB]
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