Abstract. The current improvements in aerosol mass spectrometers resolution and sensitivity, the analytical tools for spectra deconvolution, have enabled in-depth analysis of ambient organic (OA) properties. Although OA constitutes a major fraction aerosol, its properties are determined to great extent by mixing characteristics both inorganic components aerosol. This work applies new methodolog...

Absolute calibration of the Pierre Auger Observatory fluorescence detectors uses a light source at the telescope aperture. The technique accounts for the combined effects of all detector components in a single measurement. The calibrated 2.5 m diameter light source fills the aperture, providing uniform illumination to each pixel. The known flux from the light source and the response of the acqu...