In this mode, the target operator only needs to monitor the magnet return flow and the QT system because the fridge will not be filled with LHe. However, the separator will be kept cold by 'some' flow. The minimum would be 7slm, and higher flow will be needed based on the next Magnet fill time (please check with the Target Expert on shift regarding the plan during this mode).
Outlet Flows (nominal)
| Type | Flow (in slm) | Valve configuration | How to control / set the configuration |
|---|---|---|---|
| Fridge / Main Return | Non-zero | Gate Valve → Close Gate Valve Bypass → Fully Open | How to control the Fridge Return flow (GV and GV Bypass) |
| Separator Return | 7 or higher | Separator Return Flow Controller (FC2) | How to control the Separator Return flow |
| Magnet Return | ~7 (on pressure PID at 1.0 psi) | How to control the Magnet Return flow |
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Conditions
- Fridge parameters when the fridge is in Idle Mode
- QT system conditions when the fridge is in Idle Mode
- Magnet conditions when the fridge is in Idle Mode
- Cryo-control (CCP) parameters / conditions when the fridge is in Idle Mode
- Microwave: OFF
- Target Lifter: OFF
- UVA-NMR system when the fridge is in idle Mode: Running/Idle (check with Target Expert if tuning/tests have been performed)