Heungsu Shin (Author), R. U. Abbasi (Author), T. Abu-Zayyad (Author), M. Allen (Author), Yasuhiko Arai (Author), R. Arimura (Author), E. Barcikowski (Author), J. W. Belz (Author), D. R. Bergman (Author), J. P. Lundquist (Author)

Abstract

The Telescope Array experiment is an ultra-high energy cosmic ray observatory located in Millard County, Utah, USA. The observatory consists of 3 fluorescence detector (FD) stations and 507 surface detectors (SD) that cover an area of ~700 km^2. Hybrid trigger is an external trigger system for the SD arrays that prompts the SD to perform data acquisition when an FD detects a shower-like event. In comparison with the SD autonomous trigger, hybrid trigger allows the SD to collect the data of an air shower that has primary energy below 10^18.5 eV, where the efficiency of SD autonomous trigger decreases rapidly. We present the measurements of the cosmic ray energy spectrum and the depth of maximum shower development of hybrid trigger events observed from October 2010 to September 2014.

Keywords

Telescope Array;indirect detection;hybrid detection;ground array;fluorescence detection;ultra-high energy;cosmic rays;energy spectrum;composition;

Data

Language: English
Year of publishing:
Typology: 1.08 - Published Scientific Conference Contribution
Organization: UNG - University of Nova Gorica
UDC: 539.1
COBISS: 166982147 Link will open in a new window
ISSN: 1824-8039
Views: 24
Downloads: 0
Average score: 0 (0 votes)
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Other data

Type (COBISS): Not categorized
Pages: str. 1-10
Chronology: 2022
DOI: 10.22323/1.395.0305
ID: 20033957