semiconductor-based radiation detector

Weighting potential in Frisch-grid detector

Weighting potential distribution in bar-shaped (6x6x12 mm3) CdZnTeSe detector. 5-mm wide Frisch-grid band attached to below 1-mm from anode. It was easily calculated with FEM (finite element method) using Mathematica. Left side (z=0) is cathode and right side (z=12) is anode. Sometimes (in scientific paper) the location of Frisch-grid is not properly discribed. The location of Frisch-grid sho..

Pulse height spectra of Eu-152 taken with planar CdZnTeSe detector. All the gamma peaks of Eu-152 lower than 344 keV are clearly visible. The interaction probability of photon which higher thatn 344 keV is nearly zero, thus higher energy gamma peaks than 344 keV are not detectable.