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Title: D0 Cryogenic In-Line Filters

The DO cryogenic system utilizes liquid argon (serving as the detector ionizing medium) and liquid nitrogen (refrigerant for the argon). In order to keep these fluids pure and minimize the likelihood of plugged instrumentation due to contamination, in-line filters will be installed on the following lines (see Cryogenic Flow Diagram, drawing 3740-ME-222394): 445LN, 412LN, 447LA, 427LA. and 422GA. The lines referred to by these labels are argon dewar LN2 supply, cryostat LN2 supply, LAr dewar fill/drain line, cryostat LAr fill/drain line, and dewar-to-cryostat argon gas line, respectively. Five filters are required. As of this writing, one has been built and tested. The others are to be identical in concept and construction.
Authors:
;
Publication Date:
OSTI Identifier:
1031161
Report Number(s):
FERMILAB-D0-EN-188
TRN: US201201%%656
DOE Contract Number:
AC02-07CH11359
Resource Type:
Technical Report
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ARGON; AVAILABILITY; CONSTRUCTION; CONTAMINATION; CRYOGENICS; CRYOSTATS; DEWARS; NITROGEN; Experiment-HEP