Beamline shutdown

If the beamline is going off the air for more than 3 days, these are some of the things to do:

1. Call Safety Coordinator, and get beamline locked out.

2. Turn of HV to proportional counter, and turn off helium and counter gas flow at bottle only.

3. Fill out a weekly check list, including a computer-list of all motor positions. Measure mirror shaft lengths.

4. Consider closing valves, depending on nature of shutdown.

5. Consider running Ti sublimators for 2 minutes each.

6. Do an overall cleanup. Is the zone plate secure?