If you notice something to be reported immediately, then please email Dustin (dustin@virginia.edu) and call the Target Expert on-call at that moment.

Target Monitoring and Maintenance Guide for Target Expert Shift
see Target Expert  (click) page for the detailed information
(weekly basis)



Target Monitoring and Maintenance Guide for Target Helper Shift

Revised (10/16/2022)

Target_Monitoring_and_Maintenance_Guide_10_07_2022.pdf

Target_Monitoring_and_Maintenance_Guide.pdf








Helium Liquefier (QT) System

Task#TaskFrequencyComments
1Check the gHe bottles' level on west-wall of the cryoplatformMonday/Wednesday/FridayReplace if the level is low
2Check the number of LN2 portable dewars outside the loading dockEverydayInform Kun to order LN2 portable dewars if the number of dewars is less than 2
2Record the number of gHe and gN2 bottles at the outside rackMonday/Wednesday/Fridayhttps://docs.google.com/spreadsheets/d/1EDTHSeUDGJ9b6beYizHEAJ8-Z1rAiQbZMgKhmloPLw8/edit#gid=1831993347
Inform Kun to order gas bottles (gHe and gN2) if the counts are less than 2
3Check gHe pressure and LN2 pressure of the outside tanksEvery morning, eveninghttps://docs.google.com/spreadsheets/d/1EDTHSeUDGJ9b6beYizHEAJ8-Z1rAiQbZMgKhmloPLw8/edit#gid=1940801906
4Check QT HR3 gaugesEvery morning, eveninghttps://docs.google.com/spreadsheets/d/1EDTHSeUDGJ9b6beYizHEAJ8-Z1rAiQbZMgKhmloPLw8/edit#gid=1940801906
5Check QT liquid (Dewar/purifier) levelsEvery morning, eveninghttps://docs.google.com/spreadsheets/d/1EDTHSeUDGJ9b6beYizHEAJ8-Z1rAiQbZMgKhmloPLw8/edit#gid=1727227200
6Check LCW main inlet, an outlet to NM4Every morning, eveninghttps://docs.google.com/spreadsheets/d/1EDTHSeUDGJ9b6beYizHEAJ8-Z1rAiQbZMgKhmloPLw8/edit#gid=558588447
7Monitoring QT compressor LCW temperaturesEvery morning, evening(setting up this is still in progress)
Alarm conditions: T_inlet > 95F or T_out > 115F
8Filling LN2 to the QT purifier using portable DewarMonday, Wednesday, FridayMark the date, time, and levels before and after filling
Procedure: Filling LN2 to the purifier using a portable Dewar
** Need to be qualified with large portable liquified gas dewar handling training (FN000475 / OJ) **
9Filling gHe outside tanks using tube-trailerOne every 3 monthsInstructions will be added soon

Roots Pumps system

Task#TaskFrequencyComments
1Check oil levels of all 4 pumpsOnce everydayRequired levels:
  • when pumps are not running: Close to Full
  • when pumps are running: close to center/mid level
2Check LCW inlet and outlet parameters to the ROOTS, and also the main LW inletEvery morning, evening

https://docs.google.com/spreadsheets/d/1EDTHSeUDGJ9b6beYizHEAJ8-Z1rAiQbZMgKhmloPLw8/edit#gid=0
Notify Dustin (dustin@virginia.edu) and Ishara (ishara@virginia.edu)


3Check ROOTS pumps pressure and temperature using HMIEvery morning, eveninghttps://docs.google.com/spreadsheets/d/1EDTHSeUDGJ9b6beYizHEAJ8-Z1rAiQbZMgKhmloPLw8/edit#gid=761047776

UVA-NMR system

Task#TaskFrequencyComments
1Check Lambda/2 cable connectivityOnce a weekIf a cable has a problem, then mark it with a label
2







Magnet Power Supply system


Target Lifter system


Cryogenic system checks (Pressure & Temperature)



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