New complex EAS installation of the Tien Shan mountain cosmic ray station

Autor: O. D. Dalkarov, Olga Kryakunova, T.Kh. Sadykov, V. A. Ryabov, N. M. Salikhov, R.U. Beisembayev, R. A. Mukhamedshin, R. A. Nam, A. P. Chubenko, V.V. Piscal, V. S. Puchkov, N.N. Zastrozhnova, V. P. Antonova, N. G. Vildanov, A. V. Stepanov, L.I. Vildanova, V. P. Pavlyuchenko, K. M. Mukashev, N.F. Nikolaevsky, Valeriy Zhukov, A. S. Borisov, A. L. Shepetov, S. B. Shaulov, N.O. Saduev, M. I. Vildanova
Rok vydání: 2016
Předmět:
Nuclear and High Energy Physics
Physics - Instrumentation and Detectors
Physics::Instrumentation and Detectors
Astrophysics::High Energy Astrophysical Phenomena
FOS: Physical sciences
Cosmic ray
Scintillator
01 natural sciences
Nuclear physics
Shower
Optics
0103 physical sciences
Neutron detection
010306 general physics
Instrumentation and Methods for Astrophysics (astro-ph.IM)
Instrumentation
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics
Scintillation
Calorimeter (particle physics)
010308 nuclear & particles physics
business.industry
Detector
Astrophysics::Instrumentation and Methods for Astrophysics
Instrumentation and Detectors (physics.ins-det)
Scintillation counter
High Energy Physics::Experiment
Astrophysics - High Energy Astrophysical Phenomena
Astrophysics - Instrumentation and Methods for Astrophysics
business
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 832:158-178
ISSN: 0168-9002
DOI: 10.1016/j.nima.2016.06.068
Popis: We present a description of the new complex installation for the study of extensive air showers which was created at the Tien Shan mountain cosmic ray station, as well as the results of the test measurements made there in 2014-2016. At present, the system for registration of electromagnetic shower component consists of $\sim$100 detector points built on the basis of plastic scintillator plates with the sensitive area of 0.25m$^2$ and 1m$^2$, spread equidistantly over $\sim$10$^4$m$^2$ space. The dynamic range of scintillation amplitude measurements is currently about $(3-7)\cdot 10^4$, and there is a prospect of it being extended up to $\sim$10$^6$. The direction of shower arrival is defined by signal delays from a number of the scintillators placed cross-wise at the periphery of the detector system. For the investigation of nuclear active shower components there was created a multi-tier 55m$^2$ ionization-neutron calorimeter with a sum absorber thickness of $\sim$1000g/cm$^2$, typical spatial resolution of the order of 10cm, and dynamic range of ionization measurement channel about $\sim$10$^5$. Also, the use of saturation-free neutron detectors is anticipated for registration of the high- and low-energy hadron components in the region of shower core. A complex of underground detectors is designed for the study of muonic and penetrative nuclear-active components of the shower. The full stack of data acquisition, detector calibration, and shower parameters restoration procedures are now completed, and the newly obtained shower size spectrum and lateral distribution of shower particles occur in agreement with conventional data. Future studies in the field of $10^{14}-10^{17}$eV cosmic ray physics to be held at the new shower installation are discussed.
Comment: 32 pages, 20 figures. Submitted to Nucl. Instrum. Methods A
Databáze: OpenAIRE
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