Start-of-Run and End-of-Run Procedures

The procedure for turning the chambers on at the start of an experiment is the following:

1. Make sure gas is flowing through both chambers.
2. Turn on the low voltage Acopian power supplies in the SOS detector hut.
3. Turn on the FASTBUS power supply if it is not already on.
4. Turn on the threshold power supply to the appropriate setting (nominally 1.5V).
5. Turn on the high voltage.

in End-of-Run procedure

At the end of an experiment, the high voltage supplies and the Acopian power supplies should be turned off. The ethane gas flow may be shut off, but the Ar gas flow should be left on.