The use of different types of thermoluminescent dosimeters to measure extremity doses in nuclear medicine

A. Carnicer, M. Ginjaume, M. A. Duch, F. Vanhavere, M. Sans Merce, Sebastien Baechler, Ilona Barth, L. Donadille, P. Ferrari, M. Fulop, G. Gualdrini, S. Krim, M. Mariotti, Xavier Ortega, A. Rimpler, Natasha Ruiz-Lopez, P. Olko

    Research outputpeer-review


    Depth-dose curves in LiF detectors of different effective thicknesses, together with their responses, were calculated for typical nuclear medicine radiation fields with 99mTc, 18F and 90Y sources. Responses were analysed in function of the radionuclide, detector effective thickness and irradiation geometry. On the other hand the results of the nuclear medicine measurement campaign of the ORAMED project were presented focussing on the dose distribution across the hand and on the appropriate position to wear the dosimeter. According to the results, thin LiF detectors provide better responses in all cases. Its use is essential for 18F, since thick dosimeters can underestimate H p(0.07) up to a 50% because of the very inhomogeneous dose deposition on the active layer. The preliminary results of the measurement campaign showed that the index tip of the non-dominant hand is usually the most exposed position among the 22 monitored positions. It was also found that, in average, wrist dosimeters are likely to underestimate the maximum skin dose by a factor of the order of 20. This factor is reduced to around 6 for a ring dosimeter worn on the base of the index of the non-dominant hand. Thus, for typical nuclear medicine procedures, the base of the index of the non-dominant hand is recommended as the best monitoring option.

    Original languageEnglish
    Pages (from-to)1835-1838
    Number of pages4
    JournalRadiation Measurements
    Issue number12
    StatePublished - Dec 2011


    The research leading to these results has received funding from the European Atomic Energy Community’s Seventh Framework Programme (FP7/2007–2011) under grant agreement no 211361.

    FundersFunder number
    Euratom 7th Framework Programme211361

      ASJC Scopus subject areas

      • Radiation
      • Instrumentation

      Cite this