Difference between revisions of "Beam and Hall checks"

Revision as of 17:40, 12 June 2019

In the process of editing and updating this page. Please contact Juliette Mammei crowder@jlab.org with questions or suggestions.

PREX Main<< Information for Shift Takers << Shift Leader << Shift Checklist

Figure 1 - Alarm handler window when there is a red alarm. If nothing is alarming, it would be grey.

Figure -

Is alarm handler running on hacweb7?
- On hacweb 7, you should see a window in the upper right corner of the screen
  - Look first in the "Alarm Handler" desktop to see if it is there
  - Check all the windows if not
- If not open, see Alarm Handler
Is the volume up on hacweb7? (both hardware and software)

Beam Energy (GeV)
- Look at the lower left green "beamline" box
- The beam energy can be found in the upper right of this box
Beam current (µA)
- Look on the
Downstream raster (B) on? Yes/No (upstream raster is not in use)
- picture of scope when raster is off, and when raster is on
Raster size (x:y mm, see log 3654466 )?
Fast feedback on? Yes/No
Beam Position Monitor X/Y (mm) A
Beam Position Monitor X/Y (mm) E (BPM B in Hall A Tools)
BCM temperature (K) (PV, PS, Thermocouple) If these differ by +/-.5 from (110.0,110.0,115.0) (Fahrenheit) contact RC and halog
- These temperature readbacks are located in the middle DAQ room, in rack CH0B06 (far left) at the very top
- It is important that these temperatures stay stable within 0.5 Fahrenheit or else the BCM current readout will become uncalibrated
Arc energy NMR locked? ( (Goto ARC or the "Field Management Screen", and verify if the box locked is ON/OFF))
VESDA System OK? (VESDA is the smoke/fire detection and alarm system. Check the Hall A VESDA Console on the wall behind the door
Current Target
Argon pressure (psi)
Ethane pressure (psi)
CO2 pressure (psi)
Visual Hall Inspection OK?
Septum current (A) and polarity?
Upstream/downstream corrector currents (A) ?
Check the scalers

@@ Line 4: / Line 4: @@
 [[File:Snapshot_1_1762.png|thumb|600px|right|Figure 1 - Alarm handler window when there is a red alarm.  If nothing is alarming, it would be grey.]]
-[[File:Halla_tools.png|thumb|600px|right|Figure 2 - Hall A General Tools screen (beam is off), where you can find most of the information needed here.]]
+[[File:Halla_beamline_section.png|thumb|600px|right|Figure  - ]]
+[[File:Hallatools_HRS.png|thumb|600px|right|Figure  - ]]
+[[File:Halltools_gas.png|thumb|600px|right|Figure  - ]]
+[[File:Halltools_vdc.png|thumb|600px|right|Figure  - ]]
+[[File:Halltools_vdc2.png|thumb|600px|right|Figure  - ]]
+[[File:Halltools_other.png|thumb|600px|right|Figure  - ]]
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