Speaker
Description
The Telescope Array Low-energy Extension (TALE) experiment is a project that extends the Telescope Array (TA) experiment to observe cosmic rays with energies above 1016.5 eV using 10 fluorescence detectors (FDs) and 80 surface detectors (SDs). The TALE-infill SD array, consisting of 50 SDs arranged in a grid pattern with 100-meter spacing, has been installed to extend observations to lower energies, covering the PeV energy region. This extension allows for precise measurements of the energy spectrum, mass composition, and arrival direction anisotropy around the Knee, with the goal of understanding the cause of the Knee and the origin of cosmic rays in this energy region. In this presentation, we will report on the observational status of the TALE and TALE-infill arrays, using the first data from November 2023 to the most recent date.
