F. M. E. A. RHIC Cryogenics Page: 9 of 229
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Failure Mode Effects Analysis
System: RHIC Cryogenic System
Operation Mode: Full Ring Normal OperationsDate: 19-Nov-98
Page:1Item: 1
Failure Modes and Effects:
Open Contaminants may cause valves downstream of Minor helium leak. Minor increase in
affected filter to leak. refrigerator output.
Clogged No flow. Heat shield temperature increase with Elevated pressure/temperature.
magnet temperature rise and subsequent magnet Temperature indicators and Magnet
quench. Filter will collapse and fail at low Delta P. quench.
See Open. Pump & Purge will minimize
condensables.
Affected Components:
F4251H B 2 FILTER H 4
F4256H B 2 FILTER H 12
F6256H Y 2 FILTER H 4
F6261H Y 2 FILTER H 12
F4469H B 4 FILTER H 6
F4474H B 4 FILTER H 2
F6425H Y 4 FILTER H 6
F6430H Y 4 FILTER H 2
F4611H B 6 FILTER H 8
F4616H B 6 FILTER H 4
F6748H Y 6 FILTER H 8
F6753H Y 6 FILTER H 4
F4862H B 8 FILTER H 10
F4867H B 8 FILTER H 6
F6851H Y 8 FILTER H 10
F6856H Y 8 FILTER H 6
.F5051H B 10 FILTER H 12
F5056H B 10 FILTER H 8
F7051H Y 10 FILTER H 12
F7056H Y 10 FILTER H 8
F4029H B 12 FILTER H 2
F4035H B 12 FILTER H 10
F6054H Y 12 FILTER H 2
F6059H Y 12 FILTER H 10
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Kane, S>. F. M. E. A. RHIC Cryogenics, report, February 8, 1999; United States. (https://digital.library.unt.edu/ark:/67531/metadc865608/m1/9/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.