Author/Authors :
Abu-Zayyad، نويسنده , , T. and Al-Seady، نويسنده , , M and Belov، نويسنده , , K and Bird، نويسنده , , D.J and Boyer، نويسنده , , J and Chen، نويسنده , , G and Clay، نويسنده , , R.W. and Dai، نويسنده , , H.Y and Dawson، نويسنده , , B.R and Ho، نويسنده , , Y and Huang، نويسنده , , M.A. and Jui، نويسنده , , C.C.H. and Kidd، نويسنده , , M.J and Kieda، نويسنده , , D.B and Knapp، نويسنده , , B.C. and Lee، نويسنده , , W and Loh، نويسنده , , E.C and Mannel، نويسنده , , E.J and Ma، نويسنده ,
Abstract :
The High-Resolution Flyʹs Eye (HiRes) is an observatory for the highest energy cosmic rays. It detects the nitrogen fluorescence light induced by the passage of giant cosmic ray extensive air showers through the atmosphere. A two-site prototype of the observatory was operated from September 1994 to November 1996. In this paper we describe the components of that detector, and the procedures used to calibrate the detector and characterise the atmosphere. Data collected by the HiRes prototype are being used for physics studies, including an analysis of the cosmic ray mass composition in the energy range from 1017 to 1018 eV.
