CAEN - Model HPGe -High Purity Germanium Detectors
To complete the gamma spectroscopy laboratory set CAEN SyS includes in its offer a wide choice of High Purity Germanium detectors (HPGe).
Germanium detectors are semiconductor diodes having a p-i-n structure in which the intrinsic (I) region is sensitive to ionizing radiation, particularly X rays and gamma rays.
Charge carriers, produced by the interaction of X and gamma rays in the intrinsic region, are swept by the electric field to the P and N electrodes where are collected.
Finally, an integral charge sensitive preamplifier generates a voltage signal which amplitudes is proportional to the energy of the incoming photon.
Because High Purity Germanium detectors (HPGe) has relatively low band gap, these detectors must be cooled down.
Liquid nitrogen (LN2) or electromechanical cooling system are both available.
The High Purity Germanium detectors (HPGe) complete set is composed by the following components:
- HPGe detector
- Preamplifier with cooled input stage
- Dewar vessel
- Cable set
- Documentation
- 10% – 50% efficiency HPGe detectors are available
- p and n type HPGe detectors
- coaxial and planar HPGe detector geometry
- Energy range from 40 keV to 10 MeV or extended energy range down to 3 keV
- Input window materials: Aluminium, Beryllium or Carbon-fiber
- Excellent peak symmetry and high resolution
- Detection of radiation in any spatial orientation depending on cryostat modification
- Manufacture in a portable cryostat is possible
- High count rate indicator
- HV supply protection if detector is warm
In addition to standard supply, the following accessories are available upon request:
- Hexagon Multichannel Analyzer
- Quantus Analytical Software
- Liquid nitrogen storage and filling system
- Liquid nitrogen sensor and monitor
A world of spectroscopy choices is also available. Choose the best MCA for your laboratory.
- P-type
- N-type
- Coaxial – GCD Germanium Coaxial Detector
- Planar – GPD Germanium Planar Detector
- I configuration
- L configuration
- J configuration