Anzi, L.; Ariga, A.; Ereditato, A.; Ferragut, R.; Giammarchi, M.; Maero, G.; Pistillo, C.; Scampoli, P.; Toso, V. (2020). Sensitivity of emulsion detectors to low energy positrons. Journal of instrumentation, 15(03), P03027-P03027. Institute of Physics Publishing IOP 10.1088/1748-0221/15/03/P03027
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Nuclear emulsions are a formidable tool for detecting charged particles with sub-micrometric spatial resolution, a feature which is essential in quantum interferometry experiments with antimatter. In this context, we have tested the sensitivity of such a detector, devoid of the usual protective layer, with very low energy positrons, that is in the range 0.2–17 keV. The results show that emulsions are sensitive to positrons with energy below 1 keV. Their detection efficiency increases as a function of the energy and it tends to saturate over ∼15 keV. This demonstrates the feasibility of using this type of detector in low energy regime and defines the limits of use for future gravitational studies with antimatter.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Ariga, Akitaka, Ereditato, Antonio, Pistillo, Ciro, Scampoli, Paola |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1748-0221 |
Publisher: |
Institute of Physics Publishing IOP |
Language: |
English |
Submitter: |
Ciro Pistillo |
Date Deposited: |
31 Mar 2021 16:25 |
Last Modified: |
05 Dec 2022 15:48 |
Publisher DOI: |
10.1088/1748-0221/15/03/P03027 |
BORIS DOI: |
10.48350/153042 |
URI: |
https://boris.unibe.ch/id/eprint/153042 |
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