https://doi.org/10.1351/goldbook.P04885
A @[email protected] in which the @[email protected] is high enough for the gain to reach a value in the range from \(10^{2}\) to \(10^{5}\). Each electron produced by the initial [email protected]@ causes one avalanche. Since the number of avalanche events is proportional to the energy of the incident photons, the charge collected by the @[email protected] is proportional to the X-ray photon energy.