[en] On the basis of a general qualitative consideration of the solid state surface potentials a new model theory for thermally stimulated exoelectron emission (TSEE) is developed. The model theory explains most of the properties of radiation induced TSEE, which cannot be interpreted by older theories. These are for instance the decrease of exoelectron energy with increasing stimulation temperature and the existence of TSEE active electron traps having a negative electron affinity. Moreover, the theory gives as a result some new characteristic TSEE-properties, which are verified experimentally. Thus for instance the existence of an energy threshold for trap occupation and the selflimitation of trap occupation at low excitation energies are pointed out. In particular it follows from this theory that radiation induced TSEE is a real surface effect. Some special dosimetric applications following from this theory are investigated experimentally using BeO-and LiF-samples. The main point of these investigations is the development of a semi empirical model to estimate the absorbed dose in the surface layer of TSEE dosimeters. On the basis of this dosimetric model the effective mass energy absorption coefficient of TSEE sandwich dosimeters can be calculated for any combination of dosimeter material and covering material. Moreover, the dosimetric model is yielding a method to compensate the dependence of the dosimeter reading on the direction of radiation incidence. Thus TSEE sandwich dosimeters can be applied for the material equivalent dose determination in unknown radiation fields. (orig.)