Author/Authors :
Wiencke، نويسنده , , L.R. and 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.F and Clay، نويسنده , , R.W. and Dai، نويسنده , , H.Y and Dawson، نويسنده , , B.R. and Denholm، نويسنده , , P. and Gloyn، نويسنده , , J. and He، نويسنده , , D. and Ho، نويسنده , , Y. and Huang، نويسنده , , M.A. and Jui، نويسنده , , C.C.H. and Kidd، نويسنده , , M.J. an، نويسنده ,
Abstract :
Stable, robust ultraviolet light sources for atmospheric monitoring and calibration pose a challenge for experiments that measure air fluorescence from cosmic ray air showers. One type of light source in use at the High Resolution Flyʹs Eye (HiRes) cosmic ray observatory features a xenon flashbulb at the focal point of a spherical mirror to produce a 1 μs pulse of collimated light that includes a strong UV component. A computer-controlled touch tone radio system provides remote operation of bulb triggering and window heating. These devices, dubbed “flashers”, feature stand-alone operation, ±5% shot-to-shot stability, weather proof construction and are well suited for long-term field use. This paper describes the flashers, the radio control system, and a 12-unit array in operation at the HiRes cosmic ray observatory
Keywords :
Highest energy cosmic rays , Flyיs Eye Detector , atmosphere , aerosols , Radio control , Xenon flashbulb
