Fluorescence in damp air and comments on the radiative life time
N. Sakaki, K. Kobayakawa, M. Nagano, Y. Watanabe
Abstract
Photon yields in damp air excited by an electron using a Sr90 β source are compared withthose in dry air. Water vapors considerably reduce the yields, however, a further study is needed to evaluate the effects on the energy estimation of ultrahigh-energy cosmic rays. The relation of fluorescence efficiency to the life time of de-excitation by radiation is discussed.
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