SHIELDING OF DEMINERALIZERS AND FILTERS IN THE HFIR PRIMARY COOLANT SYSTEM

Technical Report · Mon Jul 25 04:00:00 EDT 1960

DOI:https://doi.org/10.2172/4156058· OSTI ID:4156058

McLain, H A; Haack, L A

S> Thicknesses of ordinary concrete required to shield the demineralizers and filters in the HFIR primary water system were computed for normal operating conditions and for abnormal conditions such as a meltdown of the fuel within the reactor. About 4 1/2 ft, 3 1/4 ft, and 4 1/4 ft of concrete are required to shield the cation exchange unit, the anion exchange unit, and the filter unit, respectively, to the most stringent of the following radiation levels: (a) 0.75 mr/hr for normal reactor operation or reactor operation with one defective fuel plate; (b) 1 r/hr immediately following the meltdown of 1% of the fuel; and (c) 1 r/hr 24 hours following a total fuel meltdown. Shielding thicknesses may be estimated for other tolerances from

• Research Organization: Oak Ridge National Lab., Tenn. (US)
• Sponsoring Organization: US Atomic Energy Commission (AEC)
• DOE Contract Number: W-7405-ENG-26
• NSA Number: NSA-14-022526
• OSTI ID: 4156058
• Report Number(s): CF-60-7-53
• Country of Publication: United States
• Language: English

Related Subjects

ACCIDENTS
CLEANING
CONCRETES
COOLANT LOOPS
DIAGRAMS
EQUATIONS
FAILURES
FILTERS
FUEL ELEMENTS
HFIR
IMPURITIES
ION EXCHANGE
LIQUID FLOW
MELTING
NEUTRON FLUX
OPERATION
RADIATION DOSES
REACTOR TECHNOLOGY
RESEARCH REACTORS
SHIELDING
SHIELDING MATERIALS
THICKNESS
WATER COOLANT