Gas-sensing performance of SnO2-based chemoresistive sensors after irradiation with alpha particles and gamma-rays

SnO 2 -based chemoresistive sensors were tested for the detection of H 2 O and CO impurities both before and after exposure to α-particles and γ-rays, assessing their radiation resistance for use in moderately radioactive environments. The materials examined were SnO 2 with gold nanoparticles, and a...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2024-02, Vol.333 (2), p.995-1004
Main Authors: Zonta, G., Astolfi, M., Cerboni, N., Gherardi, S., Kasprzak, M., Malagù, C., Steinegger, P., Vincenzi, D., Chiera, N. M.
Format: Article
Language:English
Subjects:
Alpha particles
Alpha rays
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Gamma rays
Gas flow
Hadrons
Heavy Ions
Inorganic Chemistry
Irradiation
Nuclear Chemistry
Nuclear Physics
Performance evaluation
Physical Chemistry
Radiation tolerance
Sensors
Tin dioxide
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Summary:SnO 2 -based chemoresistive sensors were tested for the detection of H 2 O and CO impurities both before and after exposure to α-particles and γ-rays, assessing their radiation resistance for use in moderately radioactive environments. The materials examined were SnO 2 with gold nanoparticles, and a mix of Sn-, Ti-, and Nb-oxides. The performance was evaluated in both an open-ended gas-flow setup and in a gas-loop system. Post-irradiation characterization via scanning electron microscopy and energy-dispersive X-ray spectroscopy was performed to assess morphological changes. Preliminary results showed a fast and efficient response of the sensors after irradiation, indicating their suitability for this novel use.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-023-09340-2