Currently, only Liquefier A is running and will be automatically switched to "Idle" mode.
If you see the pressure PT503A goes above 8psi, then call Kenichi/Ishara/Dustin
Currently, only Liquefier A is running. So basically, we wanted it to keep producing LHe.
If you see the following behaviors on Dewar pressure (PT503) and cold head temperatures (TI502,504,506,508,510), and make sure the LQ-A produces liquid (level should keep going up).
then contact Ishara/Kenichi/Dustin as soon as possible.
Use this dedicated page for this monitoring: https://e906-gat1.fnal.gov/data-summary/e1039/target-par-preset/target-shift-20230409.php
The purpose is to make sure that the Liquefiers A & B are producing liquid, avoiding blocking or avoiding higher Dewar pressure.
The person on this special shift monitors the conditions of both Liq A and Liq B. The conditions are checked every 30 minutes at least. The shifter calls the on-call person if
Date | 09 (Su) | 10 (Mo) | 11 (Tu) | 12 (Wed) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Time | 00-08 | 08-16 | 16-24 | 00-08 | 08-16 | 16-24 | 00-08 | 08-16 | 16-24 | 00-08 | 08-16 | 16-24 |
Monitoring Person | Farooq | Kenichi | Zulkaida | Farooq | Eric | Liliet & Ernesto | Yoshiki | Eric | Jay | |||
On-Call Person | Kenichi | Kenichi | Kenichi | Ishara | Ishara | Ishara | Kenichi | Kenichi | Kenichi |
If the on-call person does not respond to phone call, try other ways (Discord, e-mail, WhatsApp) or Kenichi/Ishara/Dustin.
Tasks are mentioned below:
Monitor the fridge temperatures, IVC, flows (fridge, magnet, separator), magnet LHe level, etc.. the full system in general.
In order to look out for these parameters, use the following links:
As of 2022-12-22.
Time | 06:00-10:00 | 10:00-14:00 | 14:00-18:00 | 18:00-22:00 | 22:00-02:00 | 02:00-06:00 |
---|---|---|---|---|---|---|
Monitoring Person | Ishara | Vibodha | Ernesto | Farooq | Kenichi | Zulkaida |
On-Call Person | Vibodha and Farooq |
If anybody is going to shuffle the shift blocks, kindly inform the discord group in advance.
The Cryo Control Panel sends out a Discord message in case any of the following parameters become out of its valid range. The table below was updated manually on 2022-12-23.
Parameter | VI | LO | HI | Unit |
---|---|---|---|---|
IVC Pressure | TPG361 | n/a | 1e-5 | Torr |
Nose LHe Level | Fridge Valve | 65 | 85 | % |
Tank B, Coil T, Coil B | ITM10 | n/a | 5 | K |
M1, M2, M3 | Roots-Pump LCW | 0.3 | n/a | GPM |
WFS1 | Roots-Pump LCW | 1.3 | n/a | GPM |
The following tasks have to be done by onsite people.
As of 2022-12-22.