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On the revised concept of linear energy transfer

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Abstract

The quantities linear energy transfer or restricted linear energy transfer are utilized in calculations that link absorbed dose to the fluence distribution of a radiation field. The computations provide approximations to absorbed dose in terms of the intermediate quantity cema or reduced cema. With the definition of the restricted linear energy transfer,L Δ, given in ICRU Report 33, the approximation remains imperfect. This study deals with the resulting need for a modified definition ofL Δ, as proposed in a draft report of ICRU. Essential differences between the old and the new definitions are demonstrated. The changed definition permits a rigorous formulation of the dependence between fluence and absorbed dose.

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References

  • Allisy A, Jennings WA, Kellerer AM, Müller JW Rossi HH (1993) Radiation quantities and units, interaction coefficients-dosimetry. ICRU News, December

  • Bartels ER, Harder D (1990) The microdosimetric regularities of nanometre regions. Radiat Prot Dosim 31:211–215

    Google Scholar 

  • Blohm R, Harder D (1985) Restricted LET: still a good parameter of radiation quality for electrons and photons. Radiat Prot Dosim 13:377–382

    Google Scholar 

  • Chen J, Kellerer AM, Rossi HH (1994) Radially restricted LET for high energy protons: a new analytical approach. Radiat Environ Biophys 33:181–187

    PubMed  Google Scholar 

  • Cormack DV, Johns HE (1959) Electron energies and ion densities in water irradiated with 200 keV 1 MeV and 25 MeV radiation. Br J Radios XXV:369–381

    Google Scholar 

  • ICRU Report 16 (1970) Linear energy transfer. International Commission on Radiation Units and Measurements

  • ICRU Report 33 (1980) Radiation quantities and units. International Commission on Radiation Units and Measurements

  • ICRU Report 44 (1989) Tissue substitutes in radiation dosimetry and measurement. International Commission on Radiation Units and Measurements

  • ICRU Report 51 (1993) Quantities and units in radiation protection dosimetry. International Commission on Radiation Units and Measurements

  • Kellerer AM, Hahn K, Rossi HH (1992) Intermediate dosimetric quantities. Radiat Res 130:15–25

    PubMed  Google Scholar 

  • Xapsos MA (1992) A spatially restricted linear energy transfer equation. Radiat Res 132:282–287

    PubMed  Google Scholar 

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Chen, J., Kellerer, A.M. & Rossi, H.H. On the revised concept of linear energy transfer. Radiat Environ Biophys 34, 29–35 (1995). https://doi.org/10.1007/BF01210542

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  • DOI: https://doi.org/10.1007/BF01210542

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