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- Shut Down and Restart Procedures
- Filling LN2 on Purifier Dewar
- QT System Starting Procedure
- Liquefier Cleaning when Dewar contains LHe
- Cleaning QT purifier Helium-space
- Cleaning QT purifier LN2 space
- What to do when cold-heads "blockage" warning appear?
- LHe Dewar cleaning procedure
- Cold-helium Circulation Procedure (Cooldown Transferline)
Useful information
- The volume of an outside gHe tank: 1600 cubic feet
- QT recommendation to keep system minimally pressurized: ~20 psi
- Running from 40 psi down to 20 psi would produce about 80 liquid litters and we should be able to do that in about 10 hours
- HR3.docx
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