Abstract
High energy photons give rise to annihilation radiation, especially in medium weight to heavy elements. A procedure is presented, based on the moments method, for calculating spectra of annihilation gamma rays and their contribution to exposure from point isotropic sources in three media: air, water and lead. It is shown that annihilation photons change the spectrum of scattered photons below 511 keV, but contribute little to exposure.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
