Title of article
Temperature and humidity dependence of air fluorescence yield measured by AIRFLY
Author/Authors
Ave، نويسنده , , M. and Bohacova، نويسنده , , M. and Buonomo، نويسنده , , B. and Busca، نويسنده , , N. and Cazon، نويسنده , , L. and Chemerisov، نويسنده , , S.D. and Conde، نويسنده , , M.E. and Crowell، نويسنده , , R.A. and Di Carlo، نويسنده , , P. and Di Giulio، نويسنده , , C. and Doubrava، نويسنده , , M. and Esposito، نويسنده , , A. and Facal San Luis، نويسنده , , P. and Franchini، نويسنده , , F.J. and Hِrandel، نويسنده , , J. and Hrabovs، نويسنده ,
Pages
5
From page
50
To page
54
Abstract
The fluorescence detection of ultra high energy cosmic rays requires a detailed knowledge of the fluorescence light emission from nitrogen molecules over a wide range of atmospheric parameters, corresponding to altitudes typical of the cosmic ray shower development in the atmosphere. We have studied the temperature and humidity dependence of the fluorescence light spectrum excited by MeV electrons in air. Results for the 313.6, 337.1, 353.7 and 391.4 nm bands are reported in this paper. We found that the temperature and humidity dependence of the quenching process changes the fluorescence yield by a sizeable amount (up to 20% for the temperature dependence in the 391.4 nm band) and its effect must be included for a precise estimation of the energy of ultra high energy cosmic rays.
Keywords
Ultra high energy cosmic rays , Nitrogen collisional quenching , Air fluorescence detection
Journal title
Astroparticle Physics
Record number
2033056
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