Response Characteristics of Thermoluminescence and Alanine-based Dosemeters to 16 and 25 MeV Proton Beams

The proton response of LiF:Mg,Ti (TLD-100) and alanine dosemeters (prepared at the Istituto Superiore di Sanit�, Rome, Italy) was studied. The irradiations were performed with proton beams with initial energies of 26.6 MeV and 18 MeV at various depths in a PMMA phantom. Results were compared with reference dosimetry provided by a Markus parallel-plate ionisation chamber and with TRIM range-effect calculations. A significant energy dependence of response was observed. The effectiveness relative to 60Co of both dosemeters was evaluated.