2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/90345The main argument against the reality of the electromagnetic quantum vacuum fluctuations is that they do not activate photon detectors. In order to met this objection I propose a model of photocounting which, in the simple case of a light signal with constant intensity, predicts a counting rate proportional to the intensity, in agreement with the standard quantum result.8 pages, no figures, corrected error in solution of differential equation, conclusions are essentially the sameQuantum Physicstext