Measurement of cosmic muon angular distribution and vertical integrated ?ux by 2 m × 2 m RPC stack at IICHEP-Madurai

摘要

The 50 kton INO-ICAL is a proposed underground high energy physics experi-ment at Theni, India (9 ? 57 0 N, 77 ? 16 0 E) to study the neutrino oscillation parameters using atmospheric neutrinos. The Resistive Plate Chamber (RPC) has been chosen as the active detector element for the ICAL detector. An experimental setup consisting of 12 layers of glass RPCs of size 2 m × 2 m has been built at IICHEP, Madurai to study the long term stability and performance of RPCs which are produced on a large scale in Indian industry. In this paper, the studies on the performance of RPCs are presented along with the angular distribution of muons at Madurai (9 ? 56 0 N, 78 ? 00 0 E and Altitude ≈ 160 m from sea level).