  In 1861, Becquerel analyzed the time-resolved luminescence and formulated an
empirical hyperbolic-type decay function, which was later named Becquerel decay
law. Since then, studies about hyperbolic decays of luminescence have been
carried on in different physical contexts. In this paper we generalize the
Becquerel decay law by using a Mittag-Leffler function with a logarithmic
argument, and discuss its physical interpretation in light of recently
published results.
