Abstract
Theoretical calculation of photoeffect is not available in analytic form and extraction of photoelectric cross-sections for specific element and photon energy require a formidable amount of computation time. To remove this difficulty an analytical formula for K-shell photoeffect was developed semi-empirically which is valid for intermediate and heavy elements ( Z ⩾ 50) and for photon energy above 150 keV. The formula agrees almost exactly with the high energy limit calculated exactly by Pratt while at intermediate energies it agrees with screened potential calculation of Schmickley and Pratt as well as with the experimental results available in this region.
Sign-in/Register to access full text options 
Free) 
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
