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Welcome to the Fenno-Aurum website!


Fenno-Aurum Oy Ltd designs and manufactures radiation detectors for X-ray, gamma-ray, and Ultra Violet detection applications.

We specialize in gas-filled radiation detectors based on the Proportional Counter design.

Proportional Counters are room-temperature X-ray detectors widely used in X-ray Fluorescence (XRF) analysis in industrial and scientific applications.


Fenno-Aurum also provides custom designs of radiation detectors and their associated electronics, low-noise preamplifiers, High-Voltage power supplies, etc.