Leakage current collection structure and a radiation detector with the same

摘要

A radiation detector comprises a piece of semiconducting material. On its surface, a number of consecutive electrode strips are configured to assume electric potentials of sequentially increasing absolute value. A field plate covers the most of a separation between a pair of adjacent electrode strips and is isolated from the most of said separation by an electric insulation layer. A bias potential is coupled to said field plate so that attracts surface-generated charge carriers.

主权项

1. A radiation detector, comprising:
a piece of semiconducting material, on a surface of said piece of semiconducting material, a number of consecutive electrode strips configured to assume electric potentials of sequentially increasing absolute value, a field plate that substantially covers a separation between a pair of adjacent electrode strips of said consecutive electrode strips, and an electric insulation layer between said field plate and said surface of said piece of semiconducting material; wherein said field plate is configured to assume a bias potential that is smaller in absolute value than the electric potential of any of said pair of adjacent electrode strips; and wherein the radiation detector further comprises a hop-over connection that electrically couples said field plate to one of said consecutive electrode stripe that is not adjacent to said separation.