Author/Authors :
Ambrosio، نويسنده , , M and Aramo، نويسنده , , C and Bracci، نويسنده , , F and Facal، نويسنده , , P and Fonte، نويسنده , , R and Gallo، نويسنده , , G and Kemp، نويسنده , , E and Matthiae، نويسنده , , G and Nicotra، نويسنده , , D and Privitera، نويسنده , , P and Raia، نويسنده , , G and Tusi، نويسنده , , E and Vitali، نويسنده , , G، نويسنده ,
Abstract :
The Fluorescence Detector of the Pierre Auger Observatory is a set of telescopes which measure the fluorescence light emitted by atmospheric nitrogen stimulated by the cosmic-ray showers. The Camera is an array of photomultipliers positioned on the telescope focal surface. We describe the main features of the camera: the hexagonal pixels geometry on the spherical focal surface; the light collectors which complement the photomultipliers; the photomultipliers test.