Imaging of atmospheric EAS Cherenkov light at EAS-TOP

Details Imaging of atmospheric EAS Cherenkov light at EAS-TOP Imaging of atmospheric EAS Cherenkov light at EAS-TOP

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ncimc..15..357a&link_type=abstract

Nuovo Cimento C, Serie 1 (ISSN 0390-5551), vol. 15 C, no. 3, May-June 1992, p. 357-363.

Astronomy and Astrophysics

Astronomy

7

Cerenkov Radiation, Cosmic Rays, Imaging Techniques, Photocathodes, Photomultiplier Tubes, Astronomical Observatories, Atmospheric Radiation, Field Of View, Isophotes, Pixels

Scientific paper

The atmospheric EAS Cherenkov light is imaged by means of a multianode photomultiplier, and the data are analyzed to study the events. The 64-pixel multianode photomultiplier has a photocathode measuring (2x2) sq cm and supports a quantum efficiency of 12 percent at 400 nm. The EAS Cherenkov light images are corrected for channel-gain differences and ADC pedestals, and the collected number of photons ranges from 1000-10,000/sq m corresponding to primary energies of approximately (10 exp 13/10 exp 14) eV. The distributions and the maximum/minimum elongation are shown to agree with calculations as well as previous experimental data. The multianode photomultiplier is shown to be an effective instrument for capturing images of atmospheric Cherenkov light.

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