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MicroGE – ultra compact HPGe

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MicroGe is an ultra-compact, electrically cooled HPGe (High Purity Germanium) detector designed for high-resolution gamma spectroscopy in demanding environments. It is used for precise identification and analysis of radioactive isotopes, particularly in applications involving high radiation levels or confined spaces, such as nuclear industry operations, decommissioning, environmental monitoring, and high-activity sample measurements. Its compact and lightweight design, combined with fanless operation and a fast start-up time of less than 30 minutes, enables flexible and mobile deployment without the need for liquid nitrogen. Key features include high energy resolution across a wide energy range, the ability to operate in high dose-rate environments, and advanced vacuum technology that eliminates the need for full thermal cycling, saving time and improving operational availability.

Data sheet

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Stefan Mårtensson

Stefan

Technical specification

Detector: HPGe, cylinder 10 x 10 mm (Ø x h)
Typical cool downtime: <30 minutes
Ultra-High Vacuum
Dimension:
Typical high volage: <1000 V (negative)
Guaranteed* energy resolution at Full Width Half Max (FWHM):
• 1.2 keV at 122 keV
• 1.7 keV at 661.7 keV
• 2.5 keV at 1332.5 keV
Energy range: from ~10 keV up to 3 MeV
Relative efficiency of 0.04% at 1332.5 keV (defined by IEC 60973)
Size: 245 x 71 x 66 mm
Weight: 1.7 kg
Power consumption: <15 W (30 W maximum)
Count rate capability Up to 7*10^4 cps @ 661.7 keV with 50% dead time
Preamplifier: Included in the probe housing. Resistive feedback. Gain 200 mV/MeV
Connections: Two bulkhead connectors to interface signal processing and power supplies.
Cable length: Standard 3.5 m cable, custom 10 m and 25 m cables upon request


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