MONOLITH Gamma & X-ray HPGe Spectrometer based on Stirling cooler
Features
- 10% – 160% efficiency HPGe p-type coaxial detectors are available;
- Energy range from 40 keV to 10 MeV for GCD model;
- Energy range from 3 keV to 10 MeV for GCDX model;
- High efficiency of radiation detection;
- High energy rate up to 200000 MeV/sec;
- Excellent peak symmetry;
- Detection of radiation in any spatial orientation depending on cryostat modification;
- Manufacture in a portable cryostat is possible;
- Low background and Ultra – low background materials are available.
COMPLETE SET
- HPGe Coaxial or Planar detector
- Preamplifier with cooling input stage
- Cryostat
- Spectrometric device (standalone or in-built into detection unit)
- Software package
- Documentation set
DESCRIPTION
Detection unit Monolith consist from the following integrated components:
- HPGe detector
- Preamplifier
- Autonomous cooling system for the detector based on electrical machinery cooler EMC
- Controller for controlling the operation of EMC
- Fans (2-4) for EMC cooling
specification
| parameter | value |
|---|---|
| Relative efficiency (with respect to 3’’ x 3’’ NaI detector and Co-60 source mounted 25 cm above the detector) at 1.33 MeV g-photon | 30% |
| Energy resolution* at 122 keV at 1.33 MeV | < 950 eV < 1900 eV |
| Peak to Compton ratio | 52 : 1 |
| Energy range of detector operation | 40 keV – 3 MeV |
| Peak shape FWTM/FWHM FW.02M/FWHM | < 1.9 < 2.65 |
| Endcap window material | Al / Be / Carbon fibre |
| Cooling time of the detector, hours | < 13 |
| Autonomous operation time, hours | > 24 |
| Orientation in space | At any angle |
| AC Power supply | 240 V 50/60 Hz |
| Power consumption, max | 250 W |
| Power consumption, normal | 170 W |
| Range of the operating temperatures, ° С | -10 … +40 |
| *energy resolution for a source at 1000 counts/s measured in accordance with ANSI/IEEE Std. 325-1996, using spectrum analyzer MS Hybrid, at shaping time 6 µs. | |