Characterization of osl and tl dosimeters with data collected at the mt25 cyclic electron accelerator

Experiments performed with conventional radiation beams allow to characterize the dosimeters in known and controllable radiation fields. Introduction UHDpulse Metrology for Advanced Radiotherapy using Particle beams with UltraHigh Pulse Dose Rates is a joint European research project aimed at developing novel dosimetry standards, as well as improving existing ones, for FLASH-RT, VHEE RT, and laser-driven medical accelerators. A dedicated work package focuses on the development of traceable and validated methods for characterizing stray radiation fields which may deliver parasitic dose to healthy tissue and organs outside the targeted area. Secondary radiation fields have the same pulsed time structure of the primary beams. Additionally, they are composed of different types of particles with different energies. The various field components need to be identified, thus adding to the metrological difficulties. The use of thermoluminescence (TL) and optically simulated luminescence (OSL) detectors in this context is being investigated. In Jan. 2020, a dedicated data-taking campaign was performed at the Microtron MT25 a cyclic electron accelerator in Prague, Czech Republic. Characterization of OSL and TL Dosimeters with Data Collected at the MT25 Cyclic Electron Accelerator . A. Cimmino1, I. Ambrožová2, , S. Motta1,3, R.Versaci1, D. Chvátil4, V. Olšanský4, V. Olšovcová1, A. Velyhan1, V. Stránský1, R. Truneček1, J. Šolc5