A photon of energy hν enters a small region and ejects an electron in a Compton interaction. An energy T is given to the electron, which exits the region with energy T′, and the photon exits the region with energy hν′= hv - T.
(a) Why does this situation not represent electronic equilibrium for the region?
(b) Give two ways that equilibrium can be established via the addition of an electron entering the region with energy T1.