PoS - Proceedings of Science
Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Cosmic-Ray Indirect. CRI-properties of CRs at high energies (anisotropy, energy, mass)
The Telescope Array Low-energy Extension
S. Udo*, S. Ogio, M. Takeda, T. Nonaka, H. Sagawa, Y. Tsunesada, S. Kishigamia, R. Saharaa, Y. Takahashia and  On behalf of the Telescope Array collaboration
Full text: pdf
Pre-published on: August 16, 2017
Published on: August 03, 2018
The Telescope Array Low-energy Extension (TALE) experiment is a hybrid
air shower detector for observation of air showers produced by very high energy
cosmic rays above $10^{16.5}$~eV.
TALE is located at the Telescope Array (TA) experiment site in the weste
rn desert of Utah, USA.
TALE has a Surface Detector (SD) array made up of 103 scintillation coun
ters (40 with 400 m spacing, 36 with 600 m spacing and 27 with 1.2 km spacing) a
nd a Fluorescence Detector (FD) station consisting of 10 FD telescopes located a
t the Telescope Array Middle Drum FD station, which is made up of 14 telescopes.
TALE-FD full operation started in 2013.
The deployment of the 103 SDs was completed in March 2017, and to date a
bout 70~$\%$ of the array is in operation with a full triggering and DAQ system.
Here we report an overview of the experiment, its capabilities and the t
echnical details of the TALE SD trigger and DAQ system from 4 month's operation.
DOI: https://doi.org/10.22323/1.301.0544
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