Radiation Protection Dosimetry Advance Access originally published online on May 30, 2006
Radiation Protection Dosimetry 2006 119(1-4):49-52; doi:10.1093/rpd/nci614
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The electron energy dependence of the TL response for CVD diamonds
1 LPES-CRESA, Laboratoire de Physique Electronique des Solides, Centre de Recherche sur les Solides et leurs Applications, EA1174, Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice cedex 2, France
2 Centre Antoine Lacassagne, Service Physique, 33 avenue Valombrose, 06189 Nice cedex 2, France
* Corresponding author: wrobel{at}unice.fr
The thermoluminescent (TL) response of CVD diamond is investigated after bombarding a sample with monoenergetic electrons (at 6 and 21 MeV). Irradiations are performed at room temperature with a medical linear electron accelerator PRIMUS (KD2-Siemens). The TL curve shows a peak at
540 K. The area of this peak as a function of fluence exhibits saturation behaviour at high energies. Moreover, there is no significant difference between the TL response at 21 MeV electrons and that at 6 MeV. In order to explain these experimental results, calculations of the ionising dose have been performed with the code MCNPX (Monte Carlo N-Particle) for various incident energies from 0.1 MeV up to 100 MeV.