MGH 7T Temperature log from


Coldheadstatus from 04/14/2001 21:15:00 :
Coldhead Patient End Coldhead Service End
ON ON
Helium Meter
Latest log data from sensors:
(n.b.: negative values are due to the Allen Bradley probes being down and should be ignored.)
Sensor and type
Last reading
My specification
Date and Time


20K Link CLTS Patient End
< 17
90K Link PT100 Patient End
< 55
20K Link CLTS Service End < 17
90K Link PT100 Service End < 55
20K Shield Allen Bradley Patient End
< 20
90K Shield PT100 Patient End < 80
20K Shield Allen Bradley Service End < 20
90K Shield PT100 Service End < 80
Coldhead 2nd Stage Allen Bradley Patient End
< 10
Coldhead 1st Stage PT100 Patient End < 40
Coldhead 2nd Stage Allen Bradley Service End < 10
Coldhead 1st Stage PT100 Service End < 40
Boiloff (not calibrated to Helium flow) [l/min]
< 2