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- Shut Down and Restart Procedures
- HR3 operations
- Filling LN2 to the purifier using a portable Dewar
- QT System Starting Procedure
- Liquefier Cleaning when Dewar contains LHe
- Cleaning QT purifier Helium-space (pumping-purging the purifier). Cleaning QT purifier Helium-space (OLD)
- Cleaning QT purifier LN2 space
- Fixing dewar level indicator (related to (9))
- Dewar Cleaning Procedure (using the transfer line)
- Cold-helium Circulation Procedure (Cooldown Transferline)
- Cleaning gHe outside tank using the purifier
- Resolving Liquefier Blocking Alarm when Liquefier is on Liquefy Mode
- Resolving Liquefier Blocking Alarm when Liquefier is on Idle Mode
- Purifier LN2 Fill Procedure-updated-labels.pdf ( Please use this updated one, or the original one on docdb 10337 by Jordan Bohn)
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- The volume of an outside gHe tank: 1600 cubic feet (45306.95 L)
- The pressure increase in the gHe tank per tube (in the tube trailer) is 10psi (i.e. 10 psi difference per tube)
- 100 slm rate on Magnet FC is equivalent to ~ 192 LHe liters per day (i.e. assuming both LQ A and B are running)
- 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 (assuming both LQ A and B are running).
- Putting a 2200 psi gas bottle into the system will produce 8 liquid liters per bottle.
- HR3.docx (It's a copyright of QT-technology. Please do not make it public. )
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