
Accession Number : AD0603414
Title : TRANSMISSION OF GAMMA RADIATION THROUGH THIN, FINITE SLABS,
Corporate Author : TECHNICAL OPERATIONS INC BURLINGTON MASS
Personal Author(s) : Barrett,Matthew J. ; Barch,William E. ; MacNeil,RobertL.
Report Date : MAY 1964
Pagination or Media Count : 48
Abstract : The shielding of gamma radiation  at photon energies where the Compton scatter process is dominant  results in a transmitted beam that is largely composed of scattered photons. An approximate formula was developed through experiment to calculate the scattered radiation and therefore determine the exact transmission, i.e., dose buildup factor (B), for thin shields in the range of photon energies from 0.6 to 2 MeV. The results of the experiment also gave rise to a simple method of measuring any microscopic scattering cross section by an array of detectors without loss of the definition of the scattering angle. (Author)
Descriptors : (*GAMMA RAYS, ABSORPTION), (*SHIELDING, NUCLEAR SCATTERING), (*PHOTONS, COMPTON SCATTERING), NUCLEAR CROSS SECTIONS, RADIATION MEASURING INSTRUMENTS, COBALT, CESIUM, RADIOACTIVE ISOTOPES, MATHEMATICAL ANALYSIS, CONCRETE, THICKNESS, IRON
Distribution Statement : APPROVED FOR PUBLIC RELEASE