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Thermal information regarding the cooldown and operation of liquid argon calorimeters

Conference ·
OSTI ID:10183359
Three liquid argon calorimeters were cooled down and operated as part of the D-Zero detector at Fermi National Accelerator laboratory. The largest vessel contains 248 metric tons of uranium and copper plates and 19 kL (5000 gal.) of liquid argon. The other two vessels are mirror images, each containing 185 metric tons of uranium and stainless steel plates and 12.1 kL (3200 gal.) of liquid argon. The cool down was accomplished by convection heat transfer between boiling liquid nitrogen filled finned heat exchangers and argon gas inside the vessels. Information regarding the general internal geometry of the calorimeters, cool down, operation, and steady state heat loads will be presented.
Research Organization:
Fermi National Accelerator Lab., Batavia, IL (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC02-76CH03000
OSTI ID:
10183359
Report Number(s):
FNAL/C--93/222; CONF-930703--22; ON: DE93019391
Country of Publication:
United States
Language:
English