An Approach to Gamma-Hadron Separation via Measurements of the Middle-UV Fraction of EAS emission by an Imaging Atmospheric Cherenkov Telescope with UV-Sensitive SiPM detectors
Abstract The operation of a small-size Cherenkov gamma-ray telescope TAIGA-IACT with camera on SiPMs OnSemi MicroFJ-60035 has been modelled by multiparticle Monte Carlo (MC) methods. The model implies that telescope camera is equipped with two specific types of filters of 290 - 590 nm (visible+NUV) and 220 - 320 nm (MUV+UVB)-bands, each covering half of the camera pixels in some uniform order. This allows one to measure the fraction of UV-radiation in total amount of Cherenkov radiation of an extensive air shower (EAS), that can be used for efficient gamma-hadron separation. The corresponding quality factor takes values up to 5.07 in the 10 - 100 TeV range depending on the distance to EAS axis and camera orientation.
Authors
- Н. Буднев (ORCID: https://orcid.org/0000-0002-2104-6687)
- E. E. Kholupenko (ORCID: https://orcid.org/0000-0002-1930-8369)
- L. Kuzmichev
- А. А. Богданов (ORCID: https://orcid.org/0000-0002-5275-5603)
- D. V. Badmaev (ORCID: https://orcid.org/0000-0002-5063-0399)
- A. M. Bykov (ORCID: https://orcid.org/0000-0003-0037-2288)
- George Repman
- Yuriy Chichagov
- Alexander Krassilchtchikov
- Yuriy Tuboltsev
Institutions
- Lomonosov Moscow State University (RU)
- Irkutsk State University (RU)
- Ioffe Institute (RU)
Publication Details
- Journal
- Research in Astronomy and Astrophysics
- Published
- 2024-09-23
- DOI
- https://doi.org/10.1088/1674-4527/ad7e66
- Primary Topic
- Radiation Detection and Scintillator Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Irkutsk State University
- Ministry of Science and Higher Education of the Russian Federation
- Ioffe Institute