SCINTILLATION COMPOUND INCLUDING A RARE EARTH ELEMENT AND A PROCESS OF FORMING THE SAME
    1.
    发明申请
    SCINTILLATION COMPOUND INCLUDING A RARE EARTH ELEMENT AND A PROCESS OF FORMING THE SAME 审中-公开
    包括稀土元素在内的复合化合物及其形成方法

    公开(公告)号:US20130327986A1

    公开(公告)日:2013-12-12

    申请号:US13885966

    申请日:2011-11-16

    IPC分类号: C09K11/77

    摘要: A scintillation compound can include a rare earth element that is in a divalent (RE2+) or a tetravalent state (RE4+). The scintillation compound can include another element to allow for better change balance. The other element may be a principal constituent of the scintillation compound or may be a dopant or a co-dopant. In an embodiment, a metal element in a trivalent state (M3+) may be replaced by RE4+ and a metal element in a divalent state (M2+). In another embodiment, M3+ may be replaced by RE2+ and M4+. In a further embodiment, M2+ may be replaced by a RE3+ and a metal element in a monovalent state (M1+). The metal element used for electronic charge balance may have a single valance state, rather than a plurality of valence states, to help reduce the likelihood that the valance state would change during formation of the scintillation compound.

    摘要翻译: 闪烁化合物可以包括处于二价(RE2 +)或四价态(RE4 +)的稀土元素。 闪烁化合物可以包括另一种元素以允许更好的变化平衡。 另一个元素可以是闪烁化合物的主要成分,也可以是掺杂剂或共掺杂剂。 在一个实施方案中,三价状态的金属元素(M3 +)可以被RE4 +和二价状态的金属元素(M2 +)代替。 在另一个实施例中,M3 +可被RE2 +和M4 +代替。 在另一个实施方案中,M2 +可被RE3 +和一价状态的金属元素(M1 +)代替。 用于电子电荷平衡的金属元素可以具有单一的价态,而不是多个价态,以帮助降低在形成闪烁化合物期间价态会改变的可能性。

    Scintillation compound including a rare earth element in a tetravalent state

    公开(公告)号:US10647916B2

    公开(公告)日:2020-05-12

    申请号:US15679762

    申请日:2017-08-17

    IPC分类号: C09K11/77 G01T1/20

    摘要: A scintillation compound can include a rare earth element that is in a divalent (RE2+) or a tetravalent state (RE4+). The scintillation compound can include another element to allow for better change balance. The other element may be a principal constituent of the scintillation compound or may be a dopant or a co-dopant. In an embodiment, a metal element in a trivalent state (M3+) may be replaced by RE4+ and a metal element in a divalent state (M2+). In another embodiment, M3+ may be replaced by RE2+ and M4+. In a further embodiment, M2+ may be replaced by a RE3+ and a metal element in a monovalent state (M1+). The metal element used for electronic charge balance may have a single valance state, rather than a plurality of valence states, to help reduce the likelihood that the valance state would change during formation of the scintillation compound.

    SCINTILLATION COMPOUND INCLUDING A RARE EARTH ELEMENT AND A PROCESS OF FORMING THE SAME

    公开(公告)号:US20180094189A1

    公开(公告)日:2018-04-05

    申请号:US15833774

    申请日:2017-12-06

    IPC分类号: C09K11/77 G01T1/20

    摘要: A scintillation compound can include a rare earth element that is in a divalent (RE2+) or a tetravalent state (RE4+). The scintillation compound can include another element to allow for better change balance. The other element may be a principal constituent of the scintillation compound or may be a dopant or a co-dopant. In an embodiment, a metal element in a trivalent state (M3+) may be replaced by RE4+ and a metal element in a divalent state (M2+). In another embodiment, M3+ may be replaced by RE2+ and M4+. In a further embodiment, M2+ may be replaced by a RE3+ and a metal element in a monovalent state (M1+). The metal element used for electronic charge balance may have a single valance state, rather than a plurality of valence states, to help reduce the likelihood that the valance state would change during formation of the scintillation compound.

    SCINTILLATING MATERIAL HAVING LOW AFTERGLOW
    6.
    发明申请
    SCINTILLATING MATERIAL HAVING LOW AFTERGLOW 审中-公开
    具有低照度的SCINTILLATING材料

    公开(公告)号:US20120119092A1

    公开(公告)日:2012-05-17

    申请号:US12977947

    申请日:2010-12-23

    IPC分类号: G01T1/20 C09K11/79

    摘要: The invention relates to a scintillator material comprising a cerium-doped rare-earth silicate, characterized in that its absorbance at a wavelength of 357 nm is less than its absorbance at 280 nm. This material has an afterglow of generally less than 200 ppm after 100 ms relative to the intensity measured during an X-ray irradiation. It is preferably codoped. It may be obtained using an oxidizing anneal. It is particularly suited to integration in an ionizing particle detector that may be used in a medical imaging apparatus.

    摘要翻译: 本发明涉及一种包含铈掺杂稀土硅酸盐的闪烁体材料,其特征在于其波长为357nm处的吸光度小于其在280nm处的吸光度。 该材料相对于在X射线照射期间测量的强度在100ms后具有通常小于200ppm的余辉。 它最好共同掺杂。 可以使用氧化退火获得。 它特别适用于集成在可用于医学成像设备中的电离粒子检测器中。