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    • 3. 发明授权
    • Radiation imaging device with photostimulable phosphor
    • 具有可光激发荧光粉的辐射成像装置
    • US5977556A
    • 1999-11-02
    • US156013
    • 1998-09-17
    • Jianorong QiuKazuyuki Hirao
    • Jianorong QiuKazuyuki Hirao
    • G01T1/10C03C3/095C03C3/15C03C3/17C03C3/23C03C3/247C03C3/32C03C4/00C03C4/12G01N23/04C09K11/08G21K4/00
    • C03C4/12C03C3/095C03C3/15C03C3/17C03C3/247C03C3/325C03C4/0078
    • A radiation imaging device including a photostimulable phosphor which is a glass including active cations that release light having a wavelength in the blue colour or ultra-violet region when those parts of the glass which have been stimulated by radiation, and a radiation source to irradiate the phosphor and an excitation light source to photostimulate the phosphor. The radiation source may be X-rays, .gamma.-rays, .alpha.-rays, .beta.-rays, electron beams, neutron beams, ion beams, ultra-violet rays having an energy equal to or greater than the band gap of the glass are excited by visible or infra-red light. Ce.sup.3+, Eu.sup.2+ can be used as the active cation, and are preferably included in an amount of 10 mole % or less of all the cations, and particularly preferably in an amount in the range of 0.001 to 2 mole %. A silicate glass, a borate glass, a phosphate glass, a mixed oxide glass consisting of at least two of a silicate, a borate and a phosphate, a halide glass, a halogen phosphate glass are used as the basic glass. The device has practical durability and mechanical strength and is suited to the recording and playback of radiation images.
    • 一种辐射成像装置,包括可光刺激性荧光体,其是包含活性阳离子的玻璃,所述活性阳离子在已经被辐射刺激的玻璃的那些部分上释放具有蓝色或紫外区域的波长的光,以及辐射源 磷光体和激发光源来对磷光体进行光刺激。 辐射源可以是X射线,γ射线,α-射线,β-射线,电子束,中子束,离子束,具有等于或大于玻璃带隙的能量的紫外线被激发 通过可见或红外线。 可以使用Ce 3+,Eu 2+作为活性阳离子,优选所有阳离子的含量为10摩尔%以下,特别优选为0.001〜2摩尔%。 硅酸盐玻璃,硼酸盐玻璃,磷酸盐玻璃,由硅酸盐,硼酸盐和磷酸盐中的至少两种组成的混合氧化物玻璃,卤化物玻璃,卤素磷酸盐玻璃用作碱性玻璃。 该装置具有实用的耐久性和机械强度,适用于放射图像的记录和回放。
    • 4. 发明授权
    • Halide glass compositions
    • 卤化物玻璃组合物
    • US5867515A
    • 1999-02-02
    • US507374
    • 1995-10-05
    • Wayne George JordanAnimesh JhaSteven Terrence Davey
    • Wayne George JordanAnimesh JhaSteven Terrence Davey
    • G02B6/00C03C3/32C03C4/00C03C4/12H01S3/17
    • C03C4/0071C03C3/325Y10S501/904
    • This invention relates to halide glasses which have particular utility as hosts for rare earth elements in order to provide optical amplification by laser activity. The glasses are characterized in that the metal content is similar to conventional ZBLAN glasses except that it has been discovered that the replacement of Al by Y and In and the use of more than one alkali metal fluoride, e.g., NaF, CsF and LiF, has synergistic benefits. The synergistic benefits are good lasing performance (due to the low content of aluminum) and good stability in spite of the low content of aluminum. Pr.sup.3+ constitutes a good lasing species for amplifying telecommunications signals at 1300 nm using pump radiation at 1020 nm.
    • PCT No.PCT / GB94 / 00346 Sec。 371日期1995年10月5日第 102(e)日期1995年10月5日PCT 1994年2月22日PCT PCT。 公开号WO94 / 19242 日期1994年9月1日本发明涉及具有特殊用途的卤化物玻璃,用作稀土元素的主体,以通过激光活性提供光学放大。 该玻璃的特征在于金属含量与常规的ZBLAN眼镜类似,只是已经发现用Y和In替代Al以及使用多于一种的碱金属氟化物,例如NaF,CsF和LiF,具有 协同效益。 协同效应是良好的激光性能(由于铝的含量低)和良好的稳定性,尽管铝含量低。 Pr3 +构成了一种良好的激光物种,用于在1020 nm处使用泵浦辐射,在1300 nm处放大电信信号。