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Results of Accelerated Life Testing of LCLS-II Cavity Tuner Motor |
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- N.A. Huque, 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 has been conducted 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 was tested for the equivalent of 30 lifetimes before being approved for use in the production cryomodules. The 9-cell LCLS-II cavity is simulated by disc springs with an equivalent spring constant. Plots of the motor position vs. tuner position ' measured via an installed linear variable differential transformer (LVDT) ' are used to measure motor motion. The titanium spindle was inspected for loss of lubrication. The motor passed the ALT, and is set to be installed in the LCLS-II cryomodules.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-SRF2017-MOPB110
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