Dose rate effects in fluorescence chemical dosimeters exposed to picosecond electron pulses: An accurate measurement of low doses at high dose rates

0554203 - FZÚ 2023 RIV US eng J - Článek v odborném periodiku
Přeček, Martin - Kubelík, Petr - Vyšín, Luděk - Schmidhammer, U. - Larbre, J.-P. - Demarque, A. - Jeunesse, P. - Mostafavi, M. - Juha, Libor
Dose rate effects in fluorescence chemical dosimeters exposed to picosecond electron pulses: An accurate measurement of low doses at high dose rates.
Radiation Research. Roč. 197, č. 2 (2022), s. 131-148. ISSN 0033-7587. E-ISSN 1938-5404
Grant CEP: GA MŠMT EF16_019/0000789; GA ČR GA19-03314S
GRANT EU: European Commission(XE) 871124 - LASERLAB-EUROPE
Grant ostatní: OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789
Výzkumná infrastruktura: ELI Beamlines III - 90141
Institucionální podpora: RVO:68378271
Klíčová slova: fluorescence dosimetry * chemical dosimetry * dose rate * radiation chemistry * picosecond pulse * Fricke dosimeter * trimesic acid * terephthalate * coumarin
Obor OECD: Inorganic and nuclear chemistry
Impakt faktor: 3.4, rok: 2022
Způsob publikování: Open access

The development of ultra-intense electron pulse for applications needs to be accompanied by the implementation of a practical dosimetry system. In this study four different systems were investigated as dosimeters for low doses with a very high-dose-rate source. First, the effects of ultra-short pulses were investigated for the yields of the Fricke dosimeter based on acidic solutions of ferrous sulfate, it was established that the yields were not significantly affected by the high dose rates, so the Fricke dosimeter system was used as a reference. Then, aqueous solutions of three compounds as fluorescence chemical dosimeters were utilized, each operated at a different solution pH: terephthalic acid - basic, trimesic acid - acidic, and coumarin-3-carboxylic acid (C3CA) - neutral.

Trvalý link: http://hdl.handle.net/11104/0328826