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    • 7. 发明授权
    • Phosphor
    • US4512911A
    • 1985-04-23
    • US533949
    • 1983-09-20
    • Noboru KoteraShusaku EguchiNorio Miura
    • Noboru KoteraShusaku EguchiNorio Miura
    • C09K11/77C09K11/467
    • C09K11/7773C09K11/7705C09K11/7733C09K11/7791
    • A rare earth element activated complex halide phosphor represented by the formulaBaF.sub.2.aBaX.sub.2.bMgF.sub.2.cMe.sup.I F.dMe.sup.II F.sub.2.eMe.sup.III F.sub.3 :fLnwherein X is at least one halogen selected from the group consisting of Cl, Br and I, Me.sup.I is at least one alkali metal selected from the group consisting of Li and Na, Me.sup.II is at least one divalent metal selected from the group consisting of Be, Ca and Sr, Me.sup.III is at least one trivalent metal selected from the group consisting of Al, Ga, Y and La, Ln is at least one rare earth element selected from the group consisting of Eu, Ce and Tb, and a, b, c, d, e and f are numbers satisfying the conditions of 0.90.ltoreq.a.ltoreq.1.05, 0.ltoreq.b.ltoreq.1.2, 0.ltoreq.c.ltoreq.0.9, 0.ltoreq.d.ltoreq.1.2, 0.ltoreq.e.ltoreq.0.03, 10.sup.-6 .ltoreq.f.ltoreq.0.03 and c+d+e.noteq.0. The phosphor emits light of high luminance when stimulated by light of wavelength ranging from 450 to 800 nm after exposure to ionizing radiations, ultraviolet rays, cathode rays, or the like. Further, the phosphor emits thermoluminescent light of high luminance when heated after exposure to ionizing radiations, ultraviolet rays, cathode rays, or the like.
    • 由式BaF2.aBaX2.bMgF2.cMeIF.dMeIIF2.eMeIIIF3表示的稀土元素活化的复合卤化物荧光体:其中X是选自Cl,Br和I中的至少一种卤素,MeI是至少一种碱 选自Li和Na的金属,MeII是选自Be,Ca和Sr中的至少一种二价金属,MeIII是选自Al,Ga,Y和La中的至少一种三价金属 Ln是选自Eu,Ce和Tb中的至少一种稀土元素,a,b,c,d,e和f是满足条件为0.90
    • 9. 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.
    • 10. 发明授权
    • Phosphor
    • US4978472A
    • 1990-12-18
    • US747437
    • 1985-06-21
    • Noboru KoteraShusaku EguchiNorio Miura
    • Noboru KoteraShusaku EguchiNorio Miura
    • C09K11/77C09K11/62
    • C09K11/7773C09K11/7705C09K11/7733C09K11/7791
    • A rare earth element activated complex halide phosphor represented by the formulaBaF.sub.2.aBaX.sub.2.bMgF.sub.2.cMe.sup.I F.dMe.sup.II F.sub.2.eMe.sup.III F.sub.3 :fLnwherein X is at least one halogen selected from the group consisting of Cl, Br and I, Me.sup.I is at least one alkali metal selected from the group consisting of Li and Na, Me.sup.II is at least one divalent metal selected from the group consisting of Be, Ca Sr, Me.sup.III is at least one trivalent metal selected from the group consisting of Al, Ga, Y and La, Ln is at least one rare earth element selected from the group consisting of Eu, Ce an Tb, and a, b, c, d, e and f are numbers satisfying the conditions of 0.90.ltoreq.a.ltoreq.1.05, 0.ltoreq.b.ltoreq.1.2, 0.ltoreq.c.ltoreq.0.9, 0.ltoreq.d.ltoreq.1.2, 0.ltoreq.e.ltoreq.0.03, 10.sup.-6 .ltoreq.f.ltoreq.0.03 and c+d+e.noteq.0. The phosphor emits light of high luminance when stimulated by light of wavelength ranging from 450 to 800 nm after exposure to ionizing radiation, ultraviolet rays, cathode rays, or the like. Further, the phosphor emits thermoluminescent light of high luminance when heated after exposure to ionizing radiations, ultraviolet rays, cathode rays, or the like.