Ge Telescope Detectors

Arrangement of 2 or more Germanium Detectors

Features

• Multiarrangement of planar, or planar and coaxial detectors (segmented or not)
• Extended gamma-ray energy range
• Background suppression by using coincidence circuitry between detectors
• No crosstalk effects between channels
• Minimized dead zones between detector layers
• Thin windows technology
• Design for waste barrel monitoring, whole body counting, space measurements and Compton cameras
• Doppler broadening correction by incidence angle measurements.

Description

The purpose of a telescope arrangement of several planar and coaxial germanium detectors is to make wide energy range measurements with best possible efficiency and background correction (like in cosmic gamma rays spectroscopy).

Stacks of planar and coaxial, pixel or strip segmented detectors can also be mounted. Such an arrangment increases the detector resolving power by discriminating gamma rays from the measured background, and also by reducing Doppler broadening effects. The absorption efficiency of such a detector is very high due to the larger germanium volume crossed by photons or particules.
Moreover, special care has been taken to minimize dead zones within detector assemblies and stacks.

The thin contact technology is a main issue for charged particle detection. Indeed, a stack of several crystals is a very interesting tool for high energy charged particule measurements.

Stacks of planar and coaxial detectors and assemblies of stack in arrays in common cryostat are possible.