|
|
| Line 2: |
Line 2: |
| | | | |
| | [[Shift Checks]] | | [[Shift Checks]] |
| − |
| |
| − | == RICH ON-LINE MONITOR FOR SHIFT WORKERS ==
| |
| − |
| |
| − | Go on the ''New HallA Tools, "EDM (HLAMain)'' (the old works also fine), click on <u>RICH Detector</u> then check:
| |
| − | * '''Radiator Pressure''' ~ '''10 V''',
| |
| − | * '''Power Supplies''' ~ '''3.8 V''' (both polarities: A nearly 3.76 V, B nearly 3.93 V),
| |
| − |
| |
| − | then click on the <u>CAEN</u> buttom;
| |
| − |
| |
| − | the ''Crate 1'' window pop up, click on <u>Modules</u> and then again on the next window ''Crate #1'' click on <u>Modules</u> of ''Module 2'' (the only active module, then you can check and modify HV).
| |
| − |
| |
| − | Channel 16 and Channel 17 are the only channels connected to the detector.
| |
| − |
| |
| − | They have to be on:
| |
| − | * Status "Normal",
| |
| − | * HVon have to be "ON"
| |
| − | * the voltage "Vmon" has to correspond to the voltage "Vset"
| |
| − | i. nominally between 2200 and 2300 for Channel 16
| |
| − | i. between 200 and 400 on Channel 17.
| |
| − |
| |
| − | If not, click on the <u>Module 2 Controls Screen</u> button, on the bottom of the panel, and click on <u>HVon ON</u>, then the HV should raise up very slowly, 5 V/s.
| |
| − |
| |
| − | If a trip occurred, the Status of the channel will be ''Trip'', after turning on the HV go back to the first ''Crate 1'' window and click on <u>Clear All Alarm</u>.
| |
| − |
| |
| − | Then the status should change into ''Up'' and eventually into ''Normal''.
| |
| − |
| |
| − | == Turn HV OFF DURING BEAM STUDIES OR CONFIGURATION CHANGES OF L-HRS. ==
| |
| − |
| |
| − | In case of repetitive trips, keep HV OFF also during configuration changes of BigBite.
| |
| − |
| |
| − | If the RICH is continuing tripping, keep HV off and call one of the [[RICH experts]],
| |
| − |
| |
| − | Do not try to keep HV on more than twice consecutively.
| |
