Shift Checklist Help
Shift Checklist Help
- The How-to page is extremely helpful. Use Firefox's "Page search" to help find what you are looking for.
- There is also an older Shift Checklist help file, which may help to locate items. (But it is a stale document.) Below is an updated table.
|What||Where to find it||How to do it|
|DATE (day-month-year)||As given by Run Control||Enter as DD-MM-YY|
|Time (24-hour clock)||As given by Run Control||Write the time into the cell|
|Your Name||As given by your parents||Write legibly|
|Beam Conditions from Overview Screen, DAQ, MEDMs, and Scalers|
|Beam Energy (MeV)||The Hall C Summary Screen should be displayed on a wall monitor. If not see this page to bring it up: EPICS/Accelerator_Screens.||Write down the Hall C beam energy|
|Beam Current (uA)||Same as above|| MPS and Hall C BCM readings should be similar. Record the
|Beam position lock on?|| Use jmenu and search for 'lock.' Then choose 'Orbit Locks Normal View
and look for 'HallCOrb.' It should be in green and show 'Running.'
|Write 'yes' or 'no' in the cell|
|Beam energy lock on?||Use jmenu and search for 'lock.' Then choose 'Energy Locks.'||Write down the three colors: one for '0R, 1A, 2A.' (They should all be green. This indicates 'yes.')|
|IPM3H07A, B, and C BPM positions. Are they nominal?||See the Hall C Summary Screen.|| Record the displayed beam position. Compare it with the nominal position posted on
the white board or sticky note.
|Fast Raster Pattern||Go to the electronics room and verify the raster pattern on the oscilloscope screen is circular.||Record 'yes' if so (you should! especially if beam is on!) If not, notify the TO and MCC.|
| Fast Raster Setpoint for Width,
Height [x, y] (mm)
|Use jmenu and search for 'fast raster.' The screen is "Hall C Raster Controls."||Record the set sizes in the “Set Raster Size” box.|
|Fast Raster Measured Currents (IxO3H, Ix04H, Iy03V, IyO4V) [A]||Use jmenu and search for 'fast raster.' The screen is "Hall C Raster Controls."|| Record the the four measured currents (Ix and Iy for two H and two V coils) from the
“Raster Measured Current” box.
|Helicity Reporting Delay (No Delay, ___ Windows)||Use jmenu and search for 'helicity,' then choose 'Helicity Control.' Look for 'Reporting Delay.'||Record the time of delay (it should be 8 windows).|
|Alarm Handler Status (General)||The Alarm Handler process must be running and always visible on one of the desktop machines. If it isn't, bring it up using this page: Hall_C_Alarm_Handler||Verify that it is running, and that the alarm sound is NOT silenced. (N.B.: this is not the old legacy high-voltage alarm. )|
|HMS Collimator Setting||Use jmenu → 'Standalone Menus' → 'Hall C.' On the Hall C Operations Menu under “Experiment Specific” is HMS Coll. Motion Control.||Determine and record the collimator position. For physics runs, HMS should be either PION or LARGE.|
|SHMS Collimator Setting||Use jmenu → 'Standalone Menus' → 'Hall C.' On the Hall C Operations Menu under “Experiment Specific” is SHMS Coll. Motion Control.||Determine and record the collimator position. For physics runs, SHMS should be COLLIMATOR.|
|HMS Trigger Rate||On the CODA GUI Screen, next to the appropriate prescaler value (ps1 thru ps6).||Record the typical instantaneous rate|
|Target (material, length)||Ask the target operator (TO).||Record which target is in the beam.|
|Drift Ch. Mixer Flows: Ar/Eth (~0.3/~0.3 slpm)||Type “go munin” and select “gas_shed” under Categories on the left side of the page. You can also find the needed charts here: [Flow and Temperature Charts]||Record “Argon Flow” and “Ethane Flow.”|
|Drift Chamber Gas Delivery Press (500 ± 5 Torr)||Same as above.||Record “Ar:Eth Pressure.”|
|Drift Ch. Gas Isopropanol Temp. (2 ± 2 C)||Same as above.||Record the “Isopropanol Fridge” temperature.|
|SHMS Trigger Rate||On the CODA GUI Screen, next to the appropriate prescaler value (ps1 thru ps6).||Record the typical instantaneous rate|
|HMS Dead Time||On the CODA GUI Screen, under the "computer live time" tab.||Calculate and record the average value|
|SHMS Dead Time||On the CODA GUI Screen, under the "computer live time" tab.||Calculate and record the average value|
|Hall C General Checks|