Medical dosimetry with alanine

Research and development are carried out within the field of medical reference dosimetry using EPR (electron spin ressonance) of alanine. The current research focusses on applications in external beam radiotherapy (MV photons).

Three alanine pellets are placed in a special water-tight holder as shown below. 

Alanine pellets ready for dosimetry


The holder as the shape of a conventional Farmer-type ionization chamber.

DTU holder for alanine pellets aimed for absorbed dose measurements in water.


Irradiation of alanine pellets in the DTU linac beam.

Alanine pellets during irradiation in DTU linac.


Claus E. Andersen
Head of section
DTU Nutech
+45 46 77 49 12


Christina Ankjærgaard
DTU Nutech
+45 46 77 46 27


Mark Bailey
R&D Engineer
DTU Nutech
+45 46 77 49 81
17 DECEMBER 2018