3D Simulations of Electrical Characteristics of Interleaved Shell-Electrode Detector

Abstract

Abstract. An Interleaved Shell-Electrode Detector -ISED (Chinese patent #zl201721077852.6), based on the Closed Shell-Electrode Detector (CSED), is proposed for the improvement of charge collection efficiency by reducing the dead region. The novel design concept of ISED will be discussed in detail. Full 3D simulations of detector electric properties including profiles of electric potential and electric field have been carried out using a SILVACO TCAD tool. The dead region introduced by interleaved shell electrodes in an ISED single cell (the unit cell) that can form an effective array is half of that in a CSED. The disturbance of the electric properties by introducing interleaved shell electrodes in an ISED is minimum and kept in two localized corners in a square shaped single cell. Other detector properties such as detector full depletion voltage, capacity, breakdown voltage, and I-V and C-V characteristics have also been simulated, and results will be given.