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Measurement Systems

Reliable radiological characterization is essential for the correct classification, storage, and clearance of radioactive waste. Based on decades of expertise in waste treatment, decommissioning, and dismantling, NUKEM offers a comprehensive portfolio of measurement systems that deliver accurate, regulatory-compliant data across a wide range of waste types and geometries.

We provide individually configured solutions for both waste packages and bulk materials:

Waste Packages

  • Drum Measurement System (DMS)
  • Container Measurement System (CMS)
  • Free release systems for packed waste (MCS)
  • Integrated tracking and documentation systems

Loose and Bulk Materials

  • Gamma monitoring system (RAYMOS)
  • FREMES - Free Release Measurement System

A standout solution in our measurement portfolio is the FREMES belt conveyor system, which is specifically designed for the radiological characterization of bulk materials such as concrete rubble, soil, or salt grit - often encountered during dismantling or remediation projects. With a throughput capacity of up to 100 tons per hour, FREMES enables 100% of the material to be continuously and precisely measured using gamma spectroscopy as well as optional total-alpha and total-beta detection.

FREMES is more than just a measurement system; it’s an intelligent solution that combines high throughput, rugged site suitability, and zero secondary waste generation. Its modular design allows for optimal performance at flow rates ranging from 5 to 100 t/h. Once characterized, material is automatically classified into categories (e.g., free release, limited release for on-site use, or radioactive waste), after which containers are filled accordingly. The system also generates complete licensing documentation and enables direct comparison to regulatory clearance limits.

Further benefits include:

  • Customized configuration with standardized, field-proven components
  • Integration with excavation maps to evaluate spatial activity distribution
  • Capability to detect both low- and high-energy gamma emitters
  • Optional detection of alpha and beta emitters
  • Verification of expected nuclide vectors

With FREMES, NUKEM delivers the precision and efficiency needed to reduce disposal volumes, simplify logistics, and accelerate site clearance - making it an indispensable tool for modern radiological waste management.

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