33RD INTERNATIONAL COSMIC RAY CONFERENCE, RIO DE JANEIRO 2013 THE ASTROPARTICLE PHYSICS CONFERENCE Design and prospect of a surface muon detector for Telescope Array experiment

Abstract: Telescope Array(TA) experiment, located in the western desert of Utah, USA, at 39.38 ◦ north and 112.9 ◦ west, is collecting data of ultra high energy cosmic rays in the energy range 1018- 1020 eV. The experiment has a Surface Detector (SD) array surrounded by three Fluorescence Detectors (FD) to enable simultaneous detection of shower particles at ground level and fluorescence photons emitted along the shower track. Measurement of shower particles at ground level, with different absorber thicknesses, enables a more detailed studies of the experiment’s energy scale and of hadronic interaction models. In this report, we present a design and estimated performance of a surface muon detector using lead plate absorbers