Universal isoenergy and dose functions of a point source

Isoenergetic and dose functions of point electron source for radiodiagnosis and biological investigations, applied for any initial electron energy in 0.5 keV - 10 MeV range are presented analytically. Functions have simple form, enabling to conduct the necessary dosimetric calculations rapidly. The application of isoenergetic function in dosimetric calculations is convenient because it can be used for evaluation of the mean absorbed dose, produced by a point source in extended biological structure-target without recourse to integration with respect to volume