Nucleair Technologisch Centrum


Universiteit Hasselt - Knowledge in action


How does EMR dosimetry work?

EMR is an acronym for Electron Magnetic Resonance, other common names are EPR (Electron Paramagnetic Resonance) and ESR (Electron Spin Resonance).

Quantitative EMR spectroscopy is the basis for EMR dosimetry. When ionizing radiation interacts with the alanine, unpaired electrons are created whihch show a high stability in time. The amino acid L-α-alanine is the most studied radiosensitive material for more than 50 years and shows good dosimetrical properties. 

What can we do?

  • Dose measurements in radiation facilities
  • Radiotherapy dosimetry
  • Transfer dosimetry programs for quality assurance

Where can we be active?

  • Hospitals (radiotherapy departments)

Our equipment


We use a Bruker EMXmicro spectrometer with a 9 inch magnet, equipped with a high-sensitivity resonator ER4119HS-W1.