Multiwavelength Calibration at Los Leones

J. BRACK, J. HARTON, R. KNAPIK, P. BAULEO; A.C. ROVERO

Otro; GAP note: Publicación interna del Observatorio Pierre Auger; 2007

The relative response of several cameras at Los Leones has been measured at wavelengths of 320, 337, 355, 380 and 405 nm, using a xenon flasher and notch filters as a light source for the calibration drum. At 380 nm and longer wavelengths the results are in good agreement with the assumed FD response as presently used in the offline analysis. Lowered efficiency is seen at shorter wavelengths, by10% or more at wavelengths of 337 nm and shorter.