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 - Journal Article
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
R&D Projects: GA MŠMT EF16_019/0000789; GA ČR GA19-03314S
EU Projects: European Commission(XE) 871124 - LASERLAB-EUROPE
Grant - others:OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789
Research Infrastructure: ELI Beamlines III - 90141
Institutional support: RVO:68378271
Keywords : fluorescence dosimetry * chemical dosimetry * dose rate * radiation chemistry * picosecond pulse * Fricke dosimeter * trimesic acid * terephthalate * coumarin
OECD category: Inorganic and nuclear chemistry
Impact factor: 3.4, year: 2022
Method of publishing: 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.

Permanent Link: http://hdl.handle.net/11104/0328826