INCREASE IN THE REFLECTED INTENSITY OF X-RAY FILMS USING PHOTONIC CRYSTALS

Photographic film is the familiar image of recording X-ray method. Examinations performed with radiographic intensifying screens reduce the patients exposure to radiation of X-rays compared with those without radiographic intensifying screens, where it directs less than half of the light emitted from the X-ray film with a screen interaction. A reflective layer made of magnesium oxide or titanium dioxide is located between the screen and the base of the film; this layer can help regain the control of the header light in other directions and is forwarded to the film. One-dimensional array of photonic crystals (PCs) consists of MgO with Al and TiO2 with Al used as reflectors. This array may increase the reflected intensity by an amount of 10.88% if MgO-Al PCs with periodicity N = 1 are used as reflectors.