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    • 15. 发明授权
    • Method for obtaining a radiation image
    • 获得辐射图像的方法
    • US4889996A
    • 1989-12-26
    • US881522
    • 1986-06-30
    • Noboru KoteraShusaku EguchiNorio Miura
    • Noboru KoteraShusaku EguchiNorio Miura
    • C09K11/77
    • C09K11/7773C09K11/7705C09K11/7733C09K11/7791
    • A radiation image storage panel for obtaining a radiation image of an object by causing said panel to absorb a radiation transmitted through said object and then exposing the panel to light of wavelength ranging from 450 to 800 nm to cause the panel to release radiation energy stored therein as fluorescent light, said panel having a fluorescent layer of a rare earth element activated complex halide stimulable phosphor represented by the formulaBaF.sub.2.aBaX.sub.2.bMe.sup.I F.cMe.sup.II F.sub.2.dMe.sup.III F.sub.3 :eLnwherein X is at least one halogen selected from the group consisting of chlorine, bromine and iodine, Me.sup.I is at least one alkali metal selected from the group consisting of lithium and sodium, Me.sup.II is at least one divalent metal selected from the group consisting of beryllium, calcium and strontium, Me.sup.III is at least one trivalent metal selected from the group consisting of aluminum, gallium, yttrium and lanthanum, Ln is at least one rare earth element selected from the group consisting of divalent europium (Eu.sup.2+), cerium and terbium, and a, b, c, d and e are numbers satisfying the conditions of 0.90.ltoreq.a.ltoreq.1.05, 0.ltoreq.b.ltoreq.0.9, 0.ltoreq.c.ltoreq.1.2, 0.ltoreq.d.ltoreq.0.03, 10.sup.-6 .ltoreq.e.ltoreq.0.03 and b+d.noteq.0, respectively. A radiation image storage panel is produced by depositing on a support a fluorescent layer of the above-mentioned phosphor. The radiation image storage panel of this invention has higher sensitivity than the conventional radiation image storage panel having a phosphor layer of the conventional rare earth element activated divalent metal fluorohalide phosphor.
    • 18. 发明授权
    • Thermoluminescence dosimeter reader
    • 热释光剂量计阅读器
    • US4480189A
    • 1984-10-30
    • US442756
    • 1982-11-18
    • Shusaku MiyakeNorio Miura
    • Shusaku MiyakeNorio Miura
    • G01T1/115G01T1/11
    • G01T1/115
    • A thermoluminescence dosimeter reader having a heater for heating a thermoluminescence element, a light measuring circuit for measuring the intensity of the thermoluminescence emanated from the element when it is heated and a display device for displaying the reading of the dosage of radiation to which the element is exposed according to the intensity of the thermoluminescence is provided with a dosage information inputting means which outputs an electric signal having a value representing a predetermined reference dosage of radiation, a calculating means for calculating a calibration constant which is the ratio between the value of the electric signal and the output value of the light measuring circuit which is the measured value of the dosage of radiation of a reference thermoluminescence element which is exposed to the predetermined reference dosage of radiation, and a memory means for memorizing the calibration constant.
    • 一种具有用于加热热发光元件的加热器的热发光剂量计读取器,用于测量从元件被加热时发出的热释光强度的光测量电路和用于显示元件所辐射剂量的读数的显示装置 设置有根据热发光强度曝光的剂量信息输入装置,其输出具有表示预定参考辐射剂量的值的电信号;计算装置,用于计算校正常数,该校准常数是电热值 信号和作为暴露于预定参考辐射剂量的参考热释光元件的辐射剂量的测量值的光测量电路的输出值,以及用于存储校准常数的存储装置。
    • 20. 发明授权
    • X-Ray intensifying screens
    • X射线增强屏幕
    • US4109152A
    • 1978-08-22
    • US819043
    • 1977-07-26
    • Yuji AokiKeiji ShimiyaNorio MiuraEtsuo MoriYujiro Suzuki
    • Yuji AokiKeiji ShimiyaNorio MiuraEtsuo MoriYujiro Suzuki
    • C09K11/77G01J1/58
    • C09K11/7713
    • An X-ray intensifying screen having a high speed and capable of providing good image quality superior in sharpness, granularity and contrast comprising a support having formed thereon a fluorescent layer composed of a complex halide phosphor represented by the composition formula shown below and having further formed on the fluorescent layer another fluorescent layer composed of a calcium tungstate phosphor:(Me.sub.1-f, Mg.sub.f)F.sub.2 .multidot.aMe'X.sub.2 .multidot.bKX'.multidot.cMe"SO.sub.4 :dEu.sup.2+,eTb.sup.3+wherein Me, Me' and Me" each represents at least one of the alkaline earth metals of the group consisting of barium, strontium and calcium; X and X' each represents at least one of chlorine and bromine; and a, b, c, d, e and f are the numbers defined by one of the following five combinations:1. 0.80.ltoreq.a.sub.1 .ltoreq.1.50, 0.10.ltoreq.b.sub.1 .ltoreq.1.50, c.sub.1 .dbd.0, 0.001.ltoreq.d.sub.1 .ltoreq.0.20, e.sub.1 .dbd.0 and f.sub.1 .dbd.0;2. 0.30.ltoreq.a.sub.2 .ltoreq.1.50, 0.10.ltoreq.b.sub.2 .ltoreq.2.00, 0.01.ltoreq.c.sub.2 .ltoreq.1.00, 0.001.ltoreq.d.sub.2 .ltoreq.0.20, e.sub.2 .dbd.0 and f.sub.2 .dbd.0;3. a.sub.3 .dbd.1, b.sub.3 .dbd.0, c.sub.3 .dbd.0, 0.01.ltoreq.d.sub.3 .ltoreq.0.10, 0