Electric-Field Mapping of Optically Perturbed CdTe Radiation Detectors

ABSTRACT: In radiation detectors, the spatial distribution of the electric field plays a fundamental role in their operation. Access to this field distribution is of strategic importance, especially when investigating the perturbing effects induced by incident radiation. For example, one dangerous effect that prevents their proper operation is the accumulation of internal space charge. Here, we probe the two-dimensional electric field in a Schottky CdTe detector using the Pockels effect and report on its local perturbation after exposure to an optical beam at the anode electrode. Our electro-optical imaging setup, together with a custom processing routine, allows the extraction of the electric-field vector maps and their dynamics during a voltage bias-optical exposure sequence. The results are in ag

SUBMITTER: Cola A 

PROVIDER: S-EPMC10221137 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature