Testing hot cell shielding in the fuel conditioning facility support areas.

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Health Phys.

DOI:https://doi.org/10.1097/00004032-199701000-00017· OSTI ID:937783

Courtney, J C; Klann, R T

Testing has been completed for two lightly shielded areas that support operations in the Fuel Conditioning Facility at the Argonne National Laboratory site at the Idaho National Engineering Laboratory. Operational requirements dictated the use of a radiography source containing 0.44 TBq (12 Ci) of 192Ir to challenge reinforced concrete and steel shields that surround a decontamination, maintenance, and repair area for contaminated equipment used in hot cell operations. A more intense source containing 0.89 TBq (24 Ci) of 192Ir was used to test lead shot and steel shields around tanks in a radioactive liquid waste system and the boundaries of the room that contained it. Measurement procedures were developed to find design flaws and construction deficiencies while minimizing radiation exposure to test participants. While the shields are adequate to limit gamma ray deep dose equivalents to 10 mSv y-1 (1 rem y-1) or less to facility personnel, several modifications were necessary to assure that the attenuation is adequate to keep dose rates less than 5 aeSv h-1 (0.5 mrem h-1) in normally occupied areas.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: NE
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 937783
• Report Number(s): ANL/ED/JA-19658
• Journal Information: Health Phys., Journal Name: Health Phys. Journal Issue: 1 ; Jan. 1997 Vol. 72; ISSN HLTPAO; ISSN 0017-9078
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

36 MATERIALS SCIENCE
ANL
DOSE EQUIVALENTS
DOSE RATES
HOT CELLS
IRIDIUM 192
LIQUID WASTES
REINFORCED CONCRETE
SHIELDS
TESTING