PURPOSE: To obtain a new radiation image conversion panel and enable recording and replaying of the radiation image by using a halosilica salt fluorescent body with cerium having a specific composition as an stimulation fluorescent body for stimulation fluorescent layers.

CONSTITUTION: A halosilicate fluorescent body activated by cerium expressed by Ln3Si2O8X: a Ce is used (where Ln is Y, La, Gd or Lu, X is Cl, Br or I, and <a> is a value in the rage of 0≤0.2). When radiation such as X-ray is irradiated from a radiation generator to a subject 12, it is transmitted proportionally to the radiation transmittance at each part, goes in a radiation image conversion panel 13 and is absorbed in the stimulation fluorescent layers in the panel 13 in proportion to the radiation intensity. when an electromagnetic wave in the wave length range of 450 to 800nm is radiated to the panel 13 using the light source 14, the cumulative image of the radiation energy formed on the panel 13 is radiated as stimulation luminescence. This image information is photoelectrically converted 15 and the image is reproduced 16 and displayed 17.