Microphonics Testing of the FEL03 Cryomodule

Similar tests on SNS cavities have shown that the two methods yield similar shapes, with the Lorentz method dynamic range about 10dB less in dynamic range. Most of the Lorenz transfer function measurements for the FEL03 cryomodule show almost no discernable peaks below 240Hz, and above this frequency, the dynamic range is compressed by about 20 dB. ................
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