24-28 February 2020
Budker Institute of Nuclear Physics
Asia/Novosibirsk timezone

TAIGA - an advanced hybrid detector complex for astroparticle physics and high energy gamma-ray astronomy in the Tunka valley.

27 Feb 2020, 09:00
Invited Oral Instrumentation for Astroparticle and Neutrino physics Instrumentation for Astroparticle and Neutrino physics


Prof. Nikolay Budnev (Irkutsk State University)


The physics motivations and advantages of the new TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) array are presented. TAIGA aims to addresses gamma-ray astronomy at energies from a few TeV to several PeV, cosmic ray physics from 100 TeV to several EeV. as well as for search for axion-like particles, Lorentz violations and another evidence of New Physics. In 2020 year a one square kilometer TAIGA setup should be put in operation. It will consist of a Cherenkov timing array TAIGA-HiSCORE with the 120 wide angle detectors distributed on area 1 km^2 about with spacing 106 m, three a 4-m class Imaging Atmospheric Cherenkov Telescopes of a TAIGA-IACT array of FoV of 10x10 in the vertexes of triangle with sides 300 x 400 x 500 m about as well TAIGA-Muon and Tunka-Grande scintillation arrays.


For the energy range 30 – 200 TeV the sensitivity of 1 km^2 area TAIGA detector for the detection of local sources is expected to be 5 10^{−13} erg cm^{−2} sec^{−1} for 500 h of observations. Combination of the wide angle Cherenkov timing detector TAIGA-HiSCORE with the 4-m class Imaging Atmospheric Cherenkov Telescopes (TAIGA-IACT) offers a cost effective-way to construct in future a 10 km^2 scale array. Reconstruction of a given EAS energy, incoming direction and its core position, based on the TAIGA-HiSCORE data allow one to increase a distance between the IACTs up to 600-1000 m. The low investments together with the high sensitivity for energies ≥ 30-50 TeV make this pioneering technique very attractive for exploring the galactic PeVatrons and cosmic rays. In addition to the Cherenkov light detectors we intend to deploy an array of muon detectors (TAIGA-Muon array) spread over an area of 1 km^2 with a total area of about 2000 m^2. The TAIGA-IACT together with the TAIGA-Muon array will be used for selection of gamma-ray induced EAS. At present the TAIGA first stage has been constructed in Tunka valley, ~50 km West from the Lake Baikal.. We are planning to test operation of IACT in the single operation mode in coincidence with the HiSCORE up to shower impact distances of ~500-600 m. The first experimental results with the TAIGA first stage will be reported.

Primary author

Prof. Nikolay Budnev (Irkutsk State University)

Presentation Materials