Fort McClellan Radiological Instruction Area (ARMS-II)
Abstract
An Aerial Radiological Measuring Survey (ARMS) of the U. S. Army Chemical Corps School, Radiological Instruction Area, Fort McClellan, Ala., was made for the Civil Effects Test Operations, Division of Biology and Medicine, U. S. Atomic Energy Commission, on Jan. 15,1962, by Edgerton, Germeshausen & Grier, Inc., (EG&G). The primary purpose of the survey was to test and evaluate the operation of the ARMS-II system over a high-intensity radiation field of small area. The radiation area is about 1000 yards long and less than 300 yards wide. The sources (Co60) 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 500 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 counts/sec at 3500 ft above the ground.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 26, 1963
- Accession Number
- ADA438060
Entities
People
- R. B. Guillou