Beams Document 2273-v3

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MI Extra Wide Aperture BPM Scaling in AM-PM BPM System

Document #:
Beams-doc-2273-v3
Document type:
Note
Submitted by:
Bob Webber
Updated by:
Bob Webber
Document Created:
18 May 2006, 15:24
Contents Revised:
26 May 2006, 09:11
DB Info Revised:
26 May 2006, 09:11
Viewable by:
  • Public document
Modifiable by:
Other Versions:
Beams-doc-2273-v2
26 May 2006, 08:49
Beams-doc-2273-v1
18 May 2006, 15:28
Abstract:
The scaling of the Main Injector ExtraWide Aperture BPM pickups in the traditional AM-PM BPM processing system is summarized here. There are three aspects: 1) A lookup table to translate BPM system daughter card ADC values to beam position in millimeters (excluding all offsets), 2) A polynomial to compute beam position in millimeters from the RF Module output voltage, and 3) A polynomial to compute beam position in millimeters from the voltage provided by the BPM system DAC to the standard ACNET MADC input.
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Related Documents:
  • Beams-doc-2007: Extra Wide Aperture BPM Test Stand Measurement Results
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