
Profile
Absorbed dose to water, Dw, is the fundamental quantity in the dosimetry for radiation therapy. The unit of absorbed dose to water is the Gray (1 Gy = 1 J/kg). By measuring the radiation-induced temperature rise in water, Dw can be realized most directly and with low uncertainties for a variety of therapeutically relevant radiation species and radiation conditions. The working group 6.23 operates and develops divers water calorimeters for this purpose.
Research/Development
- Absolute determination of absorbed dose to water for therapeutically relevant radiation types and radiation conditions:
- for high-energy photon and electron radiation (kQ determination of ionization chambers)
- for medium energy X-rays (70 kV - 280 kV)
- for HDR brachytherapy sources
- for hadron radiation (cooperation with DKFZ/HIT Heidelberg: PhD and master projects)
- Research and development in the field of water calorimetry
Services
- Operation of a water calorimeter as a primary standard measuring device for the realization of the unit of absorbed dose to water in the 60Co reference field
- Measurement and calibration capabilities