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.
摘要:
Method for the preparation of a phosphor by firing a mixture of the raw materials of the phosphor, wherein prior to firing said mixture the following steps are carried out : (I) mixing the raw materials of the phosphor in an aqueous medium in finely divided state while at least one of said materials is present as a sol, (II) transforming the sol into a gel while it is intimately mixed with the other finely divided raw materials, and (III) drying the gel to form a xerogel.
摘要:
A method for recording and reproducing a radiation image comprising the steps of (i) causing a visible radiation stimulable phosphor to absorb a high-energy radiation passing through an object, (ii) stimulating said phosphor with visible radiation to release the stored energy as fluorescent light and (iii) detecting said fluorescent light with light detecting means, is characterized by the fact that the photostimulable phosphor is selected within the group of divalent europium activated alkali earth metal halosilicates. Apparatus for recording and reproducing a radiation image using the above described method. Panel for storing a radiation image containing the above described photostimulable phosphors. Phosphors selected within the group of alkali earth metal halosilicates activated with divalent europium in the presence of Al and/or Ga and/or Na and/or K.
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 a halosilicate containing as host metal at least one member selected from the group consisting of Ca, Sr, Ba, Mg, Cd, Zn and Pb, as halogen at least one member selected from the group consisting of Cl, Br and I, and comprising as dopant(s) Eu²⁺ and/or Ce³⁺.
摘要翻译:提供了一种用于记录和再现X射线图像的方法,该方法包括以下步骤:(1)使可光激发的荧光体吸收图像或图案调制的X射线,(2)用刺激电磁法对所述荧光体进行光刺激 从可见光和红外光中选择的辐射根据吸收的与光刺激中使用的辐射波长特性不同的X射线电磁辐射从磷光体中释放,以及(3)检测由光刺激发射的所述光,其中所述 荧光体是含有选自Ca,Sr,Ba,Mg,Cd,Zn和Pb中的至少一种的作为主体金属的卤硅酸,作为卤素,选自Cl,Br和I中的至少一种, 并且包含作为掺杂剂Eu 2+和/或Ce 3+的掺杂剂。 C
摘要:
A novel process for the preparation of a phosphor, which comprises steps of melting a mixture of starting materials for the phosphor and quenching the molten product in contact with an aqueous medium or with a solid surface for quenching, or by spraying said molten product into a gas, to obtain crystalline phosphor particles.
摘要:
A fluorescent lamp (1) having colors similar to stand daylight can be prepared using two component compositions. A blue emitting phosphor having a peak emission with a specified range and a 50% band width within a specified range along with specific amounts of a yellow emitting phosphor having a 50% band width within a specified range and a peak emission within a specified range provide a daylight lamp with a higher lumer per watt than the standard daylight lamp.
摘要:
A phosphor which comprises a crystal phase that has a composition represented by the following formula [1]; and a light emitting device which is provided with this phosphor.
Rex(Sr1-yMAy)aMBbMCcNdOeXf [1]
(MA includes one or more elements selected from the group consisting of Ca, Ba, Na, K, Y, Gd, and La, MB includes one or more elements selected from the group consisting of Li, Mg, and Zn, MC includes one or more elements selected from the group consisting of Al, Si, Ga, In, and Sc, X includes one or more elements selected from the group consisting of F, Cl, Br, and I, Re includes one or more elements selected from the group consisting of Eu, Ce, Pr, Tb, and Dy, and a, b, c, d, e, f, x, and y respectively satisfy the following expressions. 0.8≤a≤1.2 1.4≤b≤2.6 1.4≤c≤2.6 1.1≤d≤2.9 1.1≤e≤2.9 0.0≤f≤0.1 0.0
摘要:
The present invention relates to an improved garnet luminophore which can be excited in a first wavelength range by electromagnetic radiation, as a result of which electromagnetic radiation can be emitted by the garnet luminophore in a second wavelength range. The invention additionally relates to a process for production of an improved garnet luminophore and to a light source comprising the garnet luminophore of the invention. The garnet luminophore has been activated with trivalent cerium and has a host lattice of the general chemical formula (Lu x Y y Gd z AK k ) 3 (Al b B c P d ) (O e X f ) 12 where AK = Li, Na and/or K; B = Ga and/or In; and X = F, Cl and/or Br.