Modelling transient processes in the competitive phenomena induced by heavy projectiles in materials for detectors

摘要

One of the clues in detection in modern physics is the development of detectormaterials able to produce simultaneously two or more different processes, as well as the measurementof the physical quantities associated to these processes in order to discriminate and to identifydifferent particles. In the same time, the absorption of radiation in matter is not a continuous processand due to the interaction mechanism it is localized. As a result, for short time, transient processes areproduced, some of them used in detection, other producing disorder that affects the properties of thedetector material. In the present paper the thermal spike model is extended and used forsemiconductors and liquefied noble gases used as target media for detectors. Both classes of materialsare very promising for the detection of heavy particles in nuclear and astroparticle physics.