A Tiny Telescope of Si-Detectors for High Energy Muon Flux Measurement with Electron Rejection

With very small (1 mm2) silicon detectors and a 30 MHz amplifier chain one can measure flux profiles of high energy muons inside a shield up to a density of 5 × 108 cm-2s-1. A telescope structure with several detectors and lead absorber plates enables elimination of both the low and high energy electrons which accompany the muons. Some results obtained in the CERN neutrino beam muon shield and in the North Area muon beam are presented.