Accession Number : AD0437860


Title :   RADIATION STREAMING IN DUCTS AND SHELTER ENTRANCEWAYS.


Descriptive Note : Final rept., July 61-Mar 62,


Corporate Author : IIT RESEARCH INST CHICAGO IL


Personal Author(s) : Terrell, C W ; Jerri, A J ; Lyday, R O , Jr


Report Date : Apr 1962


Pagination or Media Count : 58


Abstract : This program is an analytical and experimental investigation of the streaming of gamma and neutorns through ducts and personnel shelter entranceways. The attenuation of gamma rays in concrete walled ducts having two right angle bends was measured. Both Z and U shapes were studied experimentally. The addition of a second right angle bend results in a large increase in the attenuation for gamma rays and the energy dependence of the attenuation is considerably reduced. For smaller ducts of cross section 1 by 1 foot, the attenuation of the second bend is far greater than for the larger cross section entranceway. (Author)


Descriptors :   *RADIOACTIVE CONTAMINATION , *VENTILATION DUCTS , SHELTERS , RADIATION HAZARDS , ATTENUATION , GAMMA RAYS , THERMAL NEUTRONS , CONFIGURATIONS , CONCRETE , SHIELDING , DOSE RATE , RADIATION MEASURING INSTRUMENTS , DISTRIBUTION , DETECTORS


Distribution Statement : APPROVED FOR PUBLIC RELEASE