Array of Virtual Frisch-Grid Detectors with Common Cathode and Reduced Length of Shielding Electrodes

摘要

A radiation detector system is disclosed that effectively solves the electron trapping problem by optimizing shielding of the individual virtual Frisch-grid detectors in an array configuration.

主权项

1. A virtual Frisch-grid detector array comprising
a circuit board; a plurality of virtual Frisch-grid detectors electrically connected to the circuit board wherein each virtual Frisch-grid detector comprises a semiconductor capable of operating as a single-carrier-transport device having a first surface and a second surface; an anode connected to the first surface of the semiconductor and the circuit board; a common cathode for the plurality of virtual Frisch-grid detectors, wherein the common cathode is connected to the second surface of the semiconductors; a shielding electrode producing the virtual Frisch-grid effect spanning the perimeter of the semiconductor between the first surface and the second surface; and a capacitor electrically connected to the common cathode and the circuit board.