Pedestal Calculation

The pedestal calculations are done by the DAQ online for the year 2 data. The pedestals calculated by them for a test run during are 2001 are shown below.

All 128 timebuckets projected onto the anode axis. Barrel 1 and for Barrel 2 and lastly for Barrel 3 . The data was recorded in April 2001.

The average of timebuckets 2-128 projected onto the anode axis. Barrel 1 and for Barrel 2 , and more of Barrel 2 lastly for Barrel 3 and more Barrel 3 and even more Barrel 3 . The data was recorded in April 2001.

They have been checked against the pedestals taken on the bench prior to the SVT installation and have been shown to mostly agree (see web page below for details). i.e. all the read-out, writing to disk and reading back in appear to be in order.

The average of timebuckets 2-128 projected onto the anode axis taken from the test data recorded in June 2001. Barrel 1 and for Barrel 2 , and more of Barrel 2 lastly for Barrel 3 and more Barrel 3 and even more Barrel 3 . The readout boxes that were missing inthe earlier data have now been fixed.

For a list of the bad anodes on each wafer see here.

For more details on the actual calculation see the year 1 pedestal calculation page


Helen Caines
Last modified: Fri Jun 29 12:05:32 EDT 2001