Cherenkov light of a 100 GeV gamma shower

The following image shows the lateral distribution of Cherenkov light of an air shower initiated by a vertical gamma of 100 GeV (1011 eV) energy. The area displayed covers 400*400 m2 with the shower core at the centre. Click on any point on this image to view what an ideal telescope of 100 m2 mirror area would see at that point. The telescope images have a field-of-view of 10*10 degree2, centered at the shower direction.

Clickable image:
Gamma, 100 GeV

Technical details:
Simulation with CORSIKA 4.50 without any atmospheric extinction. Shower direction is vertical. The observation is assumed to be at a height of 2200 m. For efficiency reasons, Cherenkov photons were calculated in bunches of up to 10. In the lateral distribution white pixels correspond to 80 or more photons per m2 in the wavelength range 300-450 nm. In the telescope images white corresponds to 30 or more photons per 0.1*0.1 degree2 for a telescope area of 100 m2.