Accession Number : AD0818197

Title :   MEASUREMENT OF GAMMA-RAY ATTENUATION IN A FULL-SIZE SHELTER.

Descriptive Note : Technical note,

Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA

Personal Author(s) : Chapman, James M.

Report Date : JUN 1967

Pagination or Media Count : 20

Abstract : Dose rate attenuation factors for Co-60 radiation were measured along the entranceway of the 100-man shelter at the U. S. Construction Battalion Center, Port Hueneme, California. These dose rates were compared with those calculated by a computer code and found to be within a factor of two agreement. An attempt was also made to measure the protection factor of the entire shelter proper. It was determined that the protection factor is about 200,000. Since the protection factor near the outlet of the entranceway is about 40,000, radiation streaming through the entranceway is seen to be important. (Author)

Descriptors :   (*GAMMA RAYS, ATTENUATION), (*SHELTERS, GAMMA RAYS), (*SHIELDING, SHELTERS), CONCRETE, STEEL, DUCTS, DOSE RATE, RADIOACTIVE ISOTOPES, MEASUREMENT, MATHEMATICAL PREDICTION, ERRORS.

Subject Categories : Nuclear Radiation Shield, Protection & Safety

Distribution Statement : APPROVED FOR PUBLIC RELEASE