Radiation Physicist Interview Question:

What is air kerma?

Submitted by: Muhammad

Air kerma the initial kinetic energy of the primary ionizing particles (photoelectrons, Compton electrons, positron/negatron pairs from photon radiation, and scattered nuclei from fast neutrons) produced by the interaction of the incident uncharged radiation in a small volume of air, when it is irradiated by an x-ray beam. Unit of measure is Gray.
Submitted by: Muhammad