Beschreibung:
AbstractA Monte Carlo simulation of the number as well as energy and spatial distribution of the electron‐hole pairs created in NaCl crystals by irradiation with photons of 20 to 250 eV is carried out by using a simplified band scheme and the random‐k approximation. It is shown that the low‐energy parts of the carrier bands are populated preferentially. The computed mean pair‐creation energy is in reasonable agreement with the experimental value (13.4 to 16.7 eV) if the inelastic electron‐electron scattering threshold energy is chosen in the interval 1.2 to 1.5Eg (Eg is the band‐gap energy). The mean distance of the electron‐hole pair creation events from the photon absorption site is 50 to 60 Å.