Design and Construction of a Radiocobalt Large Animal Irradiator

Technical Report · Wed Dec 02 04:00:00 EST 1953

DOI:https://doi.org/10.2172/4386326· OSTI ID:4386326

Draeger, R. Harold ^[1]; Lee, Richard H. ^[1]; Shea, Jr., Thomas E. ^[1]; Whitten, Frank I. ^[1]; Eicher, Maynard ^[1]

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1. Naval Medical Research Institute, Bethesda, MD (United States). National Naval Medical Center

A large animal irradiator has been designed and constructed utilizing 1200 curies of radiocobalt as a source of gamma radiation. The radioactive material is divided into 100 portions of approximately 12 curies which are contained in capsules within 60 pneumatic carrier tubes. The tube system connects two radiation chambers separated by a radiation shield. This arrangement permits either of the two chambers to be entered whenever the radioactive material is pneumatically transferred to the other. In one radiation chamber the carrier tubes are disposed in a radial manner providing a volume about 32 inches in diameter and 5 feet long in which a highly uniform radiation dose rate of about 20 r per minute Rs attained. In the other chamber the tubes are clustered as closely as possible providing a smaller volume about 10 inches in diameter and 30 inches long in which the radiation level is about 200 r per minute. The equipment is housed in a reinforced concrete building which is divided by a heavy radiation shield into two radiation exposure rooms and a control room.

• Research Organization: Naval Medical Research Institute, Bethesda, MD (United States). National Naval Medical Center
• Sponsoring Organization: US Navy
• NSA Number: NSA-09-005680
• OSTI ID: 4386326
• Report Number(s): NM--006-012.04.64
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
ANIMALS
BUILDINGS
COBALT 60
CONTROL
FABRICATION
GAMMA RADIATION
IRRADIATION
PLANNING
PNEUMATICS
RADIATION DOSES
RADIATION SOURCES
SHIELDING
TUBES
VESSELS
VOLUME