In this mode, the fridge, and separator are being maintained cold by keeping you will need to coordinate with the Target Expert on shift regarding the time planning on spending in this mode.
This mode will be alternated with the Production Mode during normal operations with microwaves to keep up with the LHe production from the QT system.
Outlet Flows (nominal)
| Outlet Flow (in slm) | Run Valve | How to check and control | |
|---|---|---|---|
| Fridge | 15 | (link to a page) | (link to a page) |
| Separator | 20 | N/A | (link to a page) |
| Magnet | ~7 (on pressure PID at 0.9 psi) | N/A | (link to a page) |
Conditions
- Fridge parameters & valve positions when the fridge is in Hold Cold Mode
- QT system conditions when the fridge is in Hold Cold Mode
- Magnet conditions when the fridge is in Hold Cold Mode
- Cryo-control (CCP) parameters / conditions when the fridge is in Hold Cold Mode
- Microwave parameters / conditions when the fridge is in Hold Cold Mode
- Target Lifter conditions when the fridge is in Hold Cold Mode
- UVA-NMR conditions when the fridge is in Hold Cold Mode