Anode High Voltage Distribution

In October, 1999, after the end of the summer engineering run, Blair Stringfellow measured the TPC anode high voltages under a dummy load, looking for variations in the setpoint voltage.

In general the voltages are within the Lecroy specs. The mean value of the voltages is slightly off, but that is because the voltages were calculated using the ratio of the resistor values in the load box, as the voltage spread was the main thing of interest.

The inner sector HV subsections are labeled #1 - #4 (#1 is nearest the beam); outer sector HV subsections are labeled #5 - #8.

Plots of the distribution are also available.

Page created by Iwona Sakrejda, maintained by   .
Last modified on June 29, 2000