BaBar Drift Chamber
How to Navigate on the
EPICS Panels ?
(updated Nov 2004)
From the main "General DCH Gas
System Panel" you can access any information which is relevant
to control or command the DCH
A) In this main panel, you can
find the current status of the gas system :
When the DCH Gas System is respectively
in Running mode, at Rest, Under Control of gas expert, or
in an alarm mode to avoid hazardous
operation (due to intrinsic or external reasons).
In this case of an Alarm it is
possible to page the gas expert pager:
650 377 98 93
The complete list of experts
for gas system is accessible through this document (pdf, html)
or is written on the closest
gas system rack door, in the GAS HUT.
The gas hut phone Number is x3367.
B) The other parts of the panel
concern display menus that give access to well defined tasks :
To display a given panel according
to a given task, activate one of the scrolling menus,
with the right button of your
mouse and click on the text that labels the display/command panel
you want to access :
The crucial Parameters
of the Gas System should be accessed
Others usages :
1) Status and command panels
2) Investigation about gas alarms (or to request access to
and command of the gas system - for gas experts short list only - or
the runnable gas system flag).
3) Global Outline of the Gas System Status based on the Engineering Scheme
4) Activating the DCH Gas System Experts sequences
5) Electronic scales
(weights of the isobutane bottle).
6) Restart of the gas system after an alarm.
Links to BaBar
DCH Home page and documentation
of the DCH Gas System and the safety procedures.
Original version by