Needle-shaped x-ray fluorescent material and method for vapor-deposition thereof on a substrate

    公开(公告)号:US07189426B2

    公开(公告)日:2007-03-13

    申请号:US10522318

    申请日:2003-07-18

    IPC分类号: B05D5/06 C23C16/08

    CPC分类号: G21K4/00 C09K11/7733

    摘要: In a method for vapor-depositing a substrate with a layer of a needle-shaped x-ray fluorescent material containing at least one alkali metal, alkali halide phases and an alkali halide are mixed in a vapor phase and are vapor-deposited on the substrate. A needle-shaped fluorescent material is thereby produced having the formula ( ( M ′ + ⁢ H ′ - ) a ⁢ ( M ′′ + ⁢ H ′′ - ) ( 1 - a ) ) k ⁢ : ⁢ ⁢ ( M x ′ + ⁢ S y z + ⁢ H x ′ - ⁢ H z * ⁢ y ′′′ - ) b ⁢ ( M x ′′ + ⁢ S y z + ⁢ H x ′′ - ⁢ H z * ⁢ y ′′′ - ) c ⁢ ( M x ′ + ⁢ S y z + ⁢ H x ′′ - ⁢ H z * ⁢ y ′′′ - ) d ⁢ ( M x ′′ + ⁢ S y z + ⁢ H x ′ - ⁢ H z * ⁢ y ′′′ - ) e wherein M+ is at least one metal ion from the group Na, K, Rb and Cs, H− is at least one halide from the group F, Cl, Br and I and Sz+ is at least one lanthanide ion from the group La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu.

    Radiation converter
    2.
    发明授权
    Radiation converter 失效
    辐射转换器

    公开(公告)号:US07022994B2

    公开(公告)日:2006-04-04

    申请号:US10239547

    申请日:2001-03-22

    IPC分类号: H01J40/18

    摘要: A radiation converter has a radiation absorber for generating photons dependent on the intensity of incident x-ray radiation, a photocathode arranged downstream of the radiation absorber in the radiation propagation direction at a distance therefrom and serving for generating electrons dependent on the photons emerging from the radiation absorber, a device for accelerating the electrons emerging from the photocathode onto an electron detector for generating electrical signals dependent on the impinging electrons, an electron multiplier arranged between the photocathode and the electron detector, the electrons emerging from the photocathode being multiplied by the electron multiplier.

    摘要翻译: 辐射转换器具有用于根据入射的X射线辐射的强度产生光子的辐射吸收体,设置在放射线传播方向的距离辐射吸收体的下游距离的光电阴极,用于产生依赖于从 辐射吸收器,用于将从光电阴极出射的电子加速到电子检测器上以产生取决于入射电子的电信号的装置,布置在光电阴极和电子检测器之间的电子倍增器,从光电阴极发出的电子乘以电子 乘数。

    X-ray emitter with force-cooled rotating anode
    3.
    发明授权
    X-ray emitter with force-cooled rotating anode 失效
    具有强制旋转阳极的X射线发射器

    公开(公告)号:US06396901B1

    公开(公告)日:2002-05-28

    申请号:US09889898

    申请日:2001-07-24

    IPC分类号: H01J3510

    CPC分类号: H05G1/04 H01J35/305 H05G1/025

    摘要: An X-ray source is proposed having a rotating piston tube (2) which is mounted such that it can rotate, in which a stationary guide body (12), which at least partially surrounds the tube, is provided for cooling the anode plate (4). The guide body (12) is designed such that a liquid coolant, which is supplied to the tube (2) from a reservoir (15) concentrically with respect to the anode-bearing shaft (17), is initially positively guided along the tube outside of the anode plate (4) and along the beam outlet window (20) of the tube forming narrow gaps (18, 19), and is then passed out radially via at least one baffle plate (21) which is arranged on the tube (2) and engages in a correspondingly designed gap in the guide body (12). The high-voltage parts have an insulating gas applied to them, which is physically not separated from the liquid coolant in the source housing (1).

    摘要翻译: 提出了一种具有旋转活塞管(2)的X射线源,该旋转活塞管(2)安装成可旋转,其中提供至少部分围绕管的固定引导体(12),用于冷却阳极板( 4)。 引导体(12)被设计成使得从相对于阳极轴承轴(17)同心的储存器(15)供应到管(2)的液体冷却剂最初被沿外管正向引导 的阳极板(4)和沿着形成窄间隙(18,19)的管的梁出口窗口(20),然后经由布置在管上的至少一个挡板(21)径向通过 2)并且在引导体(12)中接合相应设计的间隙。 高压部件具有施加到其上的绝缘气体,其在物理上不与源壳体(1)中的液体冷却剂分离。