Abstract
The Carpet-3 experiment for investigation of gamma radiation with energy above 100 TeV is currently being prepared at the Baksan Neutrino Observatory of the Institute for Nuclear Research, Russian Academy of Science. At present the plastic scintillation counters with a total continuous area of 410 m\({}^{2}\) are installed in the muon detector (MD) underground tunnel, and they are totally equipped with electronics. The counters’ gains and thresholds have been adjusted. Fifteen modules of shower detectors are placed on the surface of the MD absorber. Ten of them contain 9 standard plastic counters with an area of 1 m\({}^{2}\) each. Also 24 modules without counters are arranged on the territory of the array. These modules will accomplish a surface part of the Carpet-3 array. The preliminary estimates show that the new array will have the best sensitivity to the flux of primary gamma rays with energy in region 100 TeV\(-\)1 PeV. The increased area of the surface part of the array gives a possibility to increase the area of location of the shower axis, thereby increasing the statistics of detected events and decreasing the energy threshold for primary cosmic radiation. The Carpet-3 experiment will start data taking at the end of 2021.
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ACKNOWLEDGMENTS
This work was supported by the Russian Foundation for Basic Research, projects nos. 19-29-11027 and 20-32-90213. The work is performed on the Unique Scientific Facility Baksan Underground Scintillation Telescope, the Common Use Center Baksan Neutrino Observatory INR RAS.
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Kudzhaev, A.U., Dzhappuev, D.D., Afashokov, Y.Z. et al. The Carpet-3 EAS Array for Investigation of Gamma-Radiation with Energy \(\boldsymbol{E>100}\) TeV. Phys. Atom. Nuclei 84, 1030–1036 (2021). https://doi.org/10.1134/S1063778821130160
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DOI: https://doi.org/10.1134/S1063778821130160