What is the depth of the 80% isodose line of a 15-MeV electron beam?

Question

Quizplus · Accepted Answer

Regarding the depth of the 80% isodose line in centimeters in tissue (mean energy at surface/3),the fourth relationship is directly related to the choice of an electron beam energy for a specific treatment depth.The depth of the 80% isodose value is often specified as treatment depth.Treatment depth may be determined by dividing the energy of the electron beam in MeV by 3.

What Is the Depth of the 80% Isodose Line of a 15-MeV