Where are the photostimulable phosphors located in a PSP plate?

The photostimulable phosphors in a photostimulable phosphor (PSP) plate are located on the front side of the plate. This is where the imaging process occurs; when X-rays strike the PSP plate, they excite the phosphor particles, which then store the energy. Upon stimulation by a laser during the reading process, these phosphors emit light, which is then captured to create an image.

The placement of the photostimulable phosphors on the front of the plate is crucial to ensuring optimal exposure to X-ray photons and effective imaging. Any alternatives would hinder the efficiency of the imaging process or the quality of the resultant radiographic images. Therefore, understanding the correct placement of these phosphors is fundamental for anyone studying the operation of PSP systems within the context of radiography.