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Title: TLD efficiency calculations for heavy ions: an analytical approach

The use of thermoluminescent dosimeters (TLDs) in heavy charged particles’ dosimetry is limited by their non-linear dose response curve and by their response dependence on the radiation quality. Thus, in order to use TLDs with particle beams, a model that can reproduce the behavior of these detectors under different conditions is needed. Here a new, simple and completely analytical algorithm for the calculation of the relative TL-efficiency depending on the ion charge Z and energy E is presented. In addition, the detector response is evaluated starting from the single ion case, where the computed effectiveness values have been compared with experimental data as well as with predictions from a different method. The main advantage of this approach is that, being fully analytical, it is computationally fast and can be efficiently integrated into treatment planning verification tools. In conclusion, the calculated efficiency values have been then implemented in the treatment planning code TRiP98 and dose calculations on a macroscopic target irradiated with an extended carbon ion field have been performed and verified against experimental data.
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [2] ;  [6] ;  [2]
  1. GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Darmstadt (Germany); Univ. of Pisa (Italy). Department of Physics
  2. GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Darmstadt (Germany)
  3. GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Darmstadt (Germany); EBG MedAustron GmbH, Wiener Neustadt (Austria); University of Palermo, Palermo (Italy). Department of Physics and Chemistry
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
  5. German Aerospace Center (DLR), Institute of Aerospace Medicine, Cologne (Germany)
  6. Univ. of Pisa (Italy). Department of Physics
Publication Date:
Report Number(s):
Journal ID: ISSN 1434-6060; R&D Project: KBCH139; KB0202011
Grant/Contract Number:
Accepted Manuscript
Journal Name:
European Physical Journal. D, Atomic, Molecular, Optical and Plasma Physics
Additional Journal Information:
Journal Volume: 69; Journal Issue: 12; Journal ID: ISSN 1434-6060
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
OSTI Identifier: