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Current measuring quantities in radiation protection

With the amendment of the Radiation Protection laws in 2001, the current phantom based quantities in radiation protection have been introduced in Germany.

A poster made out at PTB represents the relations in a simple way.

Additional information on this topic is given in

  1. Alberts, W. G.; Ambrosi, P.; Böhm, J.; Dietze, G.; Hohlfeld, K.; Will, W.:
    New dose quantities in radiation protection
    PTB-Dos-23e (1995), ISBN: 3-89429-932-0

  2. Ambrosi, P.; Ankerhold, U.; Behrens, R.; Böhm, J.; Helmstädter, K.; Schuhmacher, H.; Wissmann, F.; Zimbal, A.:
    Einheitliche Dosis-Messgrößen durch die Umstezung der Richtlinie 96/29/EURATOM
    Auswirkungen auf die Darstellung und die Weitergabe der Einheit Sievert für die Messgrößen, auf die Messtechnik und auf Bauartprüfungen
    PTB-Dos-45 (2003), ISBN: 3-86509-085-0


Conversion coefficients from the basic quantities (air kerma, absorbed dose and fluence) of the different types of radiation to the actual quantities:



  • Conversion coefficients for standardized radiation qualities for photons

1.       ISO-Norm 4037-3

2.       Ankerhold, U.:
Catalogue of X-ray spectra and their characteristic data - ISO and DIN radiation qualities, therapy and diagnostic radiation qualities, unfiltered X-ray spectra
PTB Report: PTB-Dos-34 (2000), ISBN: 3-89701-513-7

3.       R. Behrens:
Air kerma to dose equivalent conversion coefficients not included in ISO 4037-3,
Radiat. Prot. Dosim. 147, 373 (2011)

4.       R. Behrens:
Air kerma to Hp(3) conversion coefficients for a new cylinder phantom for photon reference radiation qualities,
Radiat. Prot. Dosim. 151, 450 (2012)

5.       R. Behrens:
Conversion coefficients for H'(3) for photons
J. Radiol. Prot. 37, 354 (2017)



  • Conversion coefficients for standardized radiation qualities for electrons

1.       ISO-Norm 6980-3

2.       R. Behrens:
Correction factors for the ISO rod phantom, a cylinder phantom, and the ICRU sphere for reference beta radiation fields of the BSS 2
J. Instrum. 10, P03014 (2015)



  • Conversion coefficients for standardized radiation qualities and special monoenergetic neutrons:

1.       ISO-Norm 8529-3