August 28, 2022 to September 1, 2022
Serbian Academy of Sciences and Arts – SASA
Europe/Belgrade timezone

Physicochemical study of electrode aging in CSC longevity tests using eco-friendly gas mixture Ar/CO2/HFO1234ze

S05-HEP-110
Aug 30, 2022, 3:05 PM
15m
Hall 661 (Faculty of Physics)

Hall 661

Faculty of Physics

Board: S05-HEP-110
Oral presentation S05 High Energy Physics (Particles and Fields) S05 High Energy Physics (Particles and Fields)

Speaker

Dr Aleksandra Radulovic (Institute of General and Physical Chemistry)

Description

Finding eco-friendly replacement for CF4 while preserving performance and long-term operation of gas discharge detectors is of the high environmental and economic importance. Tetrafluoropropene (C3H2F4) with the trade name HFO1234ze appeared as promising candidate with low GWP. Using gas mixture of 40% Ar, 58% CO2 and 2% HFO1234ze, longevity tests were performed with β-source 90Sr and accumulated charge 1.2 C cm–1. Deterioration of the electrode surfaces was studied using scanning electron and atomic force microscopy techniques. Structural and elemental chemical analysis of deposit formed on the electrodes was analyzed using X-ray diffraction, vibrational and energy dispersive spectroscopy.

Primary authors

Dr Aleksandra Radulovic (Institute of General and Physical Chemistry) Andrey Korytov Dr Armando Lanaro Dr Boris Rajcic Dr Dubravka Milovanovic (Institute of General and Physical Chemistry) Dr Gennady Gavrilov Guenakh Mitselmakher Dr Katerina Kuznetsova Dr Nebojsa Begovic (Institute of General and Physical Chemistry) Prof. Petar Adzic (Faculty of Physics, University of Belgrade) Prof. Predrag Milenovic (Faculty of Physics, University of Belgrade)

Presentation materials