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A generalized definition of dosimetric quantities.

A M Kellerer1, H H Rossi

  • 1Institut für Medizinische Strahlenkunde, Universität Würzburg, FRG.

International Journal of Radiation Biology
|April 1, 1990
PubMed
Summary

This study redefines dosimetric quantities by extending the concept of ionizing radiation to include user-selected particle types and energies. This approach generalizes kerma and absorbed dose, introducing new terms like cema for charged particle fields.

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Area of Science:

  • Medical Physics
  • Radiation Dosimetry
  • Particle Physics

Background:

  • Current microdosimetric and dosimetric quantity definitions rely on a loosely defined 'ionizing radiation' concept.
  • This definition necessitates arbitrary energy cut-off choices for different particle types.

Purpose of the Study:

  • To develop a more rigorous and flexible framework for defining dosimetric quantities.
  • To extend the system of dosimetric quantities beyond current limitations.

Main Methods:

  • Extending the definition of ionizing radiation by allowing free selection of particle types and energies.
  • Introducing a generalized dosimetric quantity framework.

Main Results:

  • Kerma and absorbed dose are identified as special cases within the generalized system.

Related Experiment Videos

  • A new quantity, cema, is introduced for charged particle fields.
  • A modification for electron fields, reduced cema, is also defined.

    • Conclusions:

    • The proposed extension provides a more robust and adaptable system for radiation dosimetry.
    • The new definitions and quantities (cema, reduced cema) offer broader applicability in analyzing radiation fields.