FORT McCLELLAN RADIOLOGICAL INSTRUCTION AREA (ARMS-II)

Technical Report · Mon Mar 26 04:00:00 EST 1962

OSTI ID:4699998

Guillou, R B

An aerial radiological survey was made to test and evaluate the operation of the ARMS-II system over a highintensity radiation field of small area. The radiation area was about 1000 yards long and less than 300 yards wide, The sources (Co/sup 60/) produce a dose rate of about 300 mr/hr along the center line. Data from an areal survey of the range were contoured to show the distribution of the gamma-ray flux at 550 ft above the ground. The count rate over the center of the range was greater than 15,000 counts/sec on the low- sensitivity detector. Data on the air attenuation of gamma rays were collected from flights along the center line of the range at altitudes ranging from 100 to 3500 ft above the ground. Maximum count rates on low sensitivity ranged from more than 50,000 counts/sec at 100 ft to 1300 counts/sec at 1300 ft. Maximum count rates on high sensitivity ranged from more than 50,000 counts/sec at 1500 ft to about 2000 counte/sec at 3500 ft above the ground. (C.H.)

• Research Organization: Edgerton, Germeshausen; Grier, Inc., Santa Barbara, Calif.
• NSA Number: NSA-17-026945
• OSTI ID: 4699998
• Report Number(s): CEX-62.6.2
• Country of Publication: United States
• Language: English

Related Subjects

AIR
COBALT 60
DISTRIBUTION
GAMMA RADIATION
GENERAL AND MISCELLANEOUS
LEVELS
LOSSES
RADIATION DETECTORS
RADIATION DOSES
RADIATION SOURCES
RADIATIONS
SENSITIVITY