Beam dump

1. Abort the data acquisition and save partially measured data if any.
2. Close electropneumatic valve 10 for safety, as the beam will be probably restored after at least 1 hour.
3. Wait until the beam is again available (observe machine status webpage, voice announcement "luce utenti") or call the control room for more information. A good sign of progress is that the operators closed electropneumatic valves 1 and 3 and the accumulated current is increasing towards the usual values (>100 mA).
4. Reopen electropneumatic valves 1 and 3. If impossible it might be that the operators in the Control Room forgot to unlock their control (symbol  in Kleopatra).
5. You should see some mesh current in the Beamline or Mesh Monitor software now. If not it might be that the operators in the Control Room forgot to open the machine shutter (valves a and b on the e BCS webpage). You can also ask the neigbouring SYRMEP beamline (that shares the same beam with us) about the beam availability.
6. Wait until the beamline optics warms up and the mesh current stabilizes (~30 minutes up to few hours).
7. Only if the mesh current, althoug stable, is very different from the value before the beam dump (tens of percent) repeat the beam alignment and/or sample alignment.
8. Restart your measurements. In SpecsLab2 check the number of scans that might be lower that desired due to measurements abortion in step 1.