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Unit of absorbed dose to water

Working Group 6.23

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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.

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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

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Information

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