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Lowest-Energy γ- & x-ray Spectrometer

with small highest resolution, planar HPGe & SiLi detectors in low-background mounting, special lead & Cu shields as well as Rn-suppression.

Application for nuclear sample mesurements

  • Ultra low-energy in vitro γ-spectrometers (ULE) are designed for the direct assessment of low energy gamma- & x-ray sources.

  • The concept and performance of our ULE spectrometers are designed for lowest limit of detection in the low energy region.

  • The systems offers a way to estimate isotopics for cases in which the element is almost entirely composed of two isotopes, using Isotopic software packages for uranium and Plutonium.

In radiation protection for national & international institudes and industry

  • Industry- and nuclear technology

  • Civil defense, emergency response, border, safety, security and access control

  • Dismantling, consinulting, waste management

  • In Universities, research centers, nuclear medicine

  • Environmental, health and food surveillance and laboratories

System description

High-Resolution Low-Energy HPGe γ-Detectors

  • Small planar crystals, Diameter: e.g. 500 mm2;  Thickness: 1.5, 2, 3 cm

  • Small coaxial crystals, Diameter: 5, 7, 8 cm;  Thickness: 1.5, 2, 3 cm

  • SiLi detectors

  • (Ultra) low-background (ULB or LB) version

  • Be or carbon windows

Sample Geometry

  • For planar or semi-coaxial crystals, Optimal for point & filter sources & Petrie shells

Spectrometry Electronics, Hardware and Software

  • State-of-the-Art digital spectrometry electronic

  • High performance data acquisition system

  • Latest analysis software solutions

 

LB or ULB Sandwich Shielding Design

  • Excellent passive sandwich lead/Cu shield for photon absorptions     

  • Rn suppression technique

High resolution planar HPGe detector: <350 eV at 60 keV 

Sample detection

Uranium sample measurement using a small high-resolution planar HPGe detector

with VRF (Visual Robot Fit) for spectra analysis. 

TIME IS MONEY!

As an example of minimum detectable activity (MDA), the CTBTO laboratory criterion of 24 mBq Ba-140 (in 7 days measuring time) will be achieved with our design of ULB gamma -spectrometer systems installed on ground level laboratories in approximate 1.5 days (black line and dots).

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Lowest-Energy
γ-Spectrometer