摘要:
A method for recording and reproducing an X-ray image is provided which method comprises the steps of :
(1) causing a photostimulable phosphor to absorb image-wise or pattern-wise modulated X-rays, (2) photostimulating said phosphor with stimulating electromagnetic radiation selected from visible light and infrared light to release from the phosphor in accordance with the absorbed X-rays electromagnetic radiation different in wavelength characteristic from the radiation used in the photo-stimulation, and (3) detecting said light emitted by photostimulation,
wherein said phosphor is an oxyorthosilicate corresponding to the following empirical formula (I) :
Y₂SiO₅:Ce³⁺, Sm³⁺ (I)
wherein : Ce³⁺ is present in an atomic percentage in the range from 0.01 to 5 with respect to the yttrium concentration taken as 100 atom %, Sm³⁺ is present in an atomic percentage in the range from 0 to 5 with respect to the yttrium concentration taken as 100 atom %.
摘要:
A photostimulable storage phosphor within the scope of following formula (I) :
M₃(PO₄)₂:xEu²⁺,yT³⁺,zZr⁴⁺
wherein : M is at least one of the alkaline earth metals selected from the group consisting of Ca, Sr and Ba, x corresponds with an atom fraction value 5x10⁻⁵ ≦ x ≦ 10⁻¹, y corresponds with an atom fraction value 0 ≦ y ≦ 10⁻¹, T³⁺ is at least one member selected from the group consisting of La³⁺, Lu³⁺, Y³⁺ and Gd³⁺, z corresponds with an atom fraction value 0 ≦ z ≦ 10⁻¹, and 5x10⁻⁵ ≦ z+y ≦ 10⁻¹ .
摘要:
A method for recording and reproducing an X-ray image is provided which method comprises the steps of :
(1) causing a photostimulable phosphor to absorb image-wise or pattern-wise modulated X-rays, (2) photostimulating said phosphor with stimulating electromagnetic radiation selected from visible light and infrared light to release from the phosphor in accordance with the absorbed X-rays electromagnetic radiation different in wavelength characteristic from the radiation used in the photo-stimulation, and (3) detecting said electromagnetic radiation emitted by photostimulation, wherein said phosphor is an oxyhalide corresponding to the empirical formula M 4-n OX₆:D n as defined herein.