Beams Document 2461-v2

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MIBPMs at 60N and 60S before and after addition of caps at 60N

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Robert K Kutschke
Updated by:
Robert K Kutschke
Document Created:
20 Sep 2006, 11:35
Contents Revised:
20 Sep 2006, 15:33
Metadata Revised:
20 Sep 2006, 18:13
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20 Sep 2006, 11:48
This document compares the BPM response in MI60N before and after the addition of a capacitor on the transition boards to act as a high pass filter. The quantities compared are the raw data and the injection flash at 2.5 Mhz for state 20, a transfer of antiprotons from the ACC to the RR. The high pass filter does reduce the low frequency noise but there remains an issue with in-band noise that causes occaisional single turn spikes in the position.
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