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    User name Reitz

    Log entry time 23:53:45 on February26,2001

    Entry number 57043

    This entry is a followup to: 56726

    keyword=bpm/harp calibration pedestals

    analysing the bpm-pedestal Run 2211 from Feb26-2001 leads to
    the following values for the Struck7510 adc
    2086 2084 2084 2084 2079 2074 2072 2071
    a gauss was used to fit the peak, the sigma was always <= 3.2

    for comparison from Oct02-2000
    2084 2082 2082 2082 2077 2072 2070 2069
    from May07-2000
    2081 2080 2078 2078 2076 2071 2068 2067

    But in various databases the following values are usually given:
    2105 2104 2098 2098 2090 2085 2085 2086

    analysing the harp-scans with these different sets
    of pedestals does not lead to significant changes in the bpm-offsets
    and/or bpm-slopes (the offsets are changing by less than
    15 um, the slopes by less than 3 %)