D0 Silicon Detector Moisture Injection
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
The system is designed to increase water content in dry air used to purge DO silicon detector. Moisture will not be added to fiber tracker purge. Currently, the air is dried to -85 deg. C (-120 deg. F). The goal is to increase Dew point of the air to about -40 C to -20 C range. This is done by redirecting a portion of dry air (about 10%) through a bubbler, and then return it to main stream. Air is taken upstream of PRV-6231-I pressure regulator (90 psi) and going to the bubbler (BU-6404-I) through the flow regulator, permitting controlled moisture addition. Water separator (FI-6411-I) and auto drain (MV-6412-I) prevent water break-trough in case of bubbler's overflowing. Moist air (saturated with water) is returned to main flow of purge air downstream of PRV-6231-I (55 psi). Water is taken from DO LCW system. Initial pressure of 110 psi is reduced to 60 psi (PRV-6421-I); expected fill rate is 1 Umin. with 55 psi in the bubbler.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1462252
- Report Number(s):
- FERMILAB--D0-EN-584; 1085594
- Country of Publication:
- United States
- Language:
- English
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