We have performed a measurement of the absolute yield of fluorescence photons at the Fermi lab Test Beam. A systematic uncertainty at 5% level was achieved by the use of Cherenkov radiation as a reference calibration light source. A cross-check was performed by an independent calibration using a laser light source. A significant improvement on the energy scale uncertainty of Ultra-High Energy Cosmic Rays is expected.
Precise measurement of the absolute yield of fluorescence photons in atmospheric gases
DI CARLO, PIERO;
2011-01-01
Abstract
We have performed a measurement of the absolute yield of fluorescence photons at the Fermi lab Test Beam. A systematic uncertainty at 5% level was achieved by the use of Cherenkov radiation as a reference calibration light source. A cross-check was performed by an independent calibration using a laser light source. A significant improvement on the energy scale uncertainty of Ultra-High Energy Cosmic Rays is expected.File in questo prodotto:
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