3D Radiation Detectors: Charge Collection Characterisation and Applicability of Technology for Microdosimetry

A study of charge collection in SINTEF 3D active edge silicon detectors was carried out at ANSTO using Ion Beam InducedCharge (IBIC) technique.An IBIC study has shown that several different geometries of 3D detectors have full depletion under low applied bias. The effect of fast neutron and gamma radiation on their charge collection efficiency was also investigated. A 3D active edge silicon detector technology has demonstrated extremely promising performance for application of the 3D Sensitive Volumes (SVs) fabrication methods to SOI microdosimetry.