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Author(s)
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Zorloni, Gabriele (Milan Polyech.) ; Ambrožová, Iva (Prague, Nucl. Phys. Inst.) ; Carbonez, Pierre (CERN) ; Caresana, Marco (Milan Polytech.) ; Ebert, Stephan (VKTA, Dresden) ; Olšovcová, Veronika (ELI Beamlines, Dolní Břežany) ; Pitzschke, Andreas (Centr. Hosp. U. Vaudois, Lausanne) ; Ploc, Ondrej (Prague, Nucl. Phys. Inst.) ; Pozzi, Fabio (CERN) ; Silari, Marco (CERN) ; Trompier, Francois (IRSN-SDOS, Fontenay-aux-Roses) ; Trunecek, Roman (ELI Beamlines, Dolní Břežany) ; Zelenka, Zdenek (Nuvia Dosimetry, Prague) |
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Abstract
| Recent advances in laser driven accelerators boosted the development of high dose-rate fast pulsed systems all over the world. The stray radiation comprises primarily high-energy photons, resulting in extremely high dose rates within pico-/femto-second pulses. Dose measurements in such conditions have to be evaluated to validate methods. To tackle this challenge the EUropean RAdiation DOSimetry Group (EURADOS) started a program of dosimeters intercomparison, with a progressive approach, starting by a first evaluation in fields with μs pulse duration. The first comparison took place at the Lausanne University Hospital Center with an electron LINAC in Sept. 2017 involving 7 European institutes. Several passive and active dosimeters were tested with a tunable air kerma per pulse of the order of MGy/h. All instruments, except electrets, did not show any dose rate dependence, thus being selected as possible candidates for further studies. |