The present invention provides an image display device which can realize the stabilization of system electric power, and can suppress crosstalk attributed to voltage drop of power source line by preventing the irregularities in power consumption which occur with time. The dye-labeled microporous crystal is a zeolite crystal, such as a zeolite L crystal, having a large number of channels in its interior into which the dye is loaded. Each imaging unit includes an X-ray beam and an X-ray detector, opposite one another along respective imaging axes. This can be facilitated either by the automatic generation of the notification e.