Luminescent body for an X-ray detector and method for producing it
    271.
    发明申请
    Luminescent body for an X-ray detector and method for producing it 失效
    用于X射线探测器的发光体及其制造方法

    公开(公告)号:US20050035294A1

    公开(公告)日:2005-02-17

    申请号:US10902286

    申请日:2004-07-30

    Inventor: Juergen Leppert

    Abstract: A luminescent body is for an X-ray detector, in particular for an X-ray computer tomograph. It contains a ceramic of the general composition (M1-xLnx)2O2S, M being at least one element selected from the group: Y, La, Sc, Lu and/or Gd, and Ln being at least one element selected from the group: Eu, Ce, Pr, Tb, Yb, Dy, Sm and/or Ho. In order to improve the spatial resolution of the luminescent body, the ceramic is used in the form of fibers, which are connected in a parallel alignment to constitute a fiber plate.

    Abstract translation: 发光体用于X射线检测器,特别是用于X射线计算机断层摄影机。 它包含一般组成的陶瓷(M1-xLnx)2O2S,M是选自Y,La,Sc,Lu和/或Gd中的至少一种元素,Ln是选自以下的至少一种元素: Eu,Ce,Pr,Tb,Yb,Dy,Sm和/或Ho。 为了提高发光体的空间分辨率,陶瓷以纤维的形式使用,其以平行取向连接以构成纤维板。

    Scintillating fiber radiation detector for medical therapy
    272.
    发明授权
    Scintillating fiber radiation detector for medical therapy 失效
    用于医疗治疗的闪烁纤维辐射探测器

    公开(公告)号:US06713765B2

    公开(公告)日:2004-03-30

    申请号:US10093385

    申请日:2002-03-11

    CPC classification number: G01T1/201 A61N5/1048 A61N2005/1009

    Abstract: A portable dosimetry system measures individual seed strengths of fully loaded multi-seed holders. The system includes a 5 mm diameter scintillating fiber disposed in a groove on a rigid bed. A photomultiplier tube (PMT) is supported on the rigid bed and is coupled to an end surface of the scintillating fiber. Attachments are provided for positioning multi-seed holders adjacent the peripheral surface of the scintillating fiber, and movable shield plates are provided for inhibiting stray radiation (produced by neighboring seeds) from reaching the scintillating fiber. The system is useful for calibrating 100% of the seeds in a holder in less time than it currently takes to calibrate 10% of the seeds in the holder.

    Abstract translation: 便携式剂量测定系统测量满载多种子保持器的个体种子强度。 该系统包括设置在刚性床上的凹槽中的5mm直径的闪烁纤维。 光电倍增管(PMT)被支撑在刚性床上并耦合到闪烁纤维的端面。 提供了用于定位邻近闪烁纤维的周边表面的多种子保持器的附件,并且提供可移动的屏蔽板以抑制杂散辐射(由相邻种子产生)到达闪烁纤维。 该系统对于在持有人中校准100%的种子的时间比目前用于校准持有者中10%的种子的时间更为有用。

    Optical fiber, optical fiber cable, and radiation detecting system using such
    273.
    发明授权
    Optical fiber, optical fiber cable, and radiation detecting system using such 失效
    光纤,光缆,辐射检测系统等

    公开(公告)号:US06671451B1

    公开(公告)日:2003-12-30

    申请号:US09522692

    申请日:2000-03-10

    Inventor: Hiroshi Sugihara

    Abstract: The present invention provides an optical fiber, an optical fiber cable and a radiation detecting system at a low cost. Further, the radiation detecting system is provided which can adequately monitor the radiation leak without delay. The optical fiber cable comprises: an optical fiber including; a core 12 having lightwave guide property and extending along one direction; a clad layer 14 covering over a peripheral surface of the core 12; and a scintillator material dispersed in the clad layer 14 and emitting light when radiation is applied, a radiation-shielding layer 24 covering substantially over a periphery of the optical fiber10, and a gap 26 located in at least one part of the radiation-shielding layer 24. The radiation detecting system comprises an optical fiber cable 20 adapted to emit light at a region where radiation is applied and transmitting the emitted light, photoelectric conversion means 32 connected to at least one end of the optical fiber cable 20, and processing means 38 detecting when radiation is applied in accordance with an output signal of the photoelectric conversion means 32.

    Abstract translation: 本发明以低成本提供光纤,光纤电缆和放射线检测系统。 此外,提供能够不延迟地适当地监视辐射泄漏的放射线检测系统。 光缆包括:光纤,包括: 具有光波导性并且沿一个方向延伸的芯12; 覆盖在芯12的外周表面上的覆层14; 以及分散在包覆层14中并在辐射被照射时发光的闪烁体材料,覆盖在光纤10的周边基本上覆盖的辐射屏蔽层24以及位于辐射屏蔽层的至少一部分中的间隙26 该放射线检测系统包括:光纤电缆20,其适于在施加辐射的区域发射光并透射发射的光;连接到光纤电缆20的至少一端的光电转换装置32;以及处理装置38 根据光电转换装置32的输出信号检测何时施加辐射。

    Real time sensor for therapeutic radiation delivery
    275.
    发明授权
    Real time sensor for therapeutic radiation delivery 失效
    实时传感器用于治疗辐射传播

    公开(公告)号:US5704890A

    公开(公告)日:1998-01-06

    申请号:US455586

    申请日:1995-05-31

    CPC classification number: G01T1/201 A61N5/1048 A61N5/1071

    Abstract: The invention is a real time sensor for therapeutic radiation. A probe is placed in or near the patient that senses in real time the dose at the location of the probe. The strength of the dose is determined by either an insertion or an exit probe. The location is determined by a series of vertical and horizontal sensing elements that gives the operator a real time read out dose location relative to placement of the patient. The increased accuracy prevents serious tissue damage to the patient by preventing overdose or delivery of a dose to a wrong location within the body.

    Abstract translation: 本发明是用于治疗辐射的实时传感器。 将探针放置在患者体内或附近,实时感测探针位置处的剂量。 剂量的强度由插入或出口探针确定。 该位置由一系列垂直和水平感测元件确定,其给予操作者相对于患者的放置的实时读出剂量位置。 提高的准确性通过防止剂量过量或递送到身体内的错误位置来防止对患者的严重组织损伤。

    Fiber optic radiation monitor
    276.
    发明授权
    Fiber optic radiation monitor 失效
    光纤辐射监测仪

    公开(公告)号:US5313065A

    公开(公告)日:1994-05-17

    申请号:US938722

    申请日:1992-09-01

    Applicant: Stuart E. Reed

    Inventor: Stuart E. Reed

    CPC classification number: G01T1/201 G01T1/2008 G01T1/203

    Abstract: Scintillating optical fiber is used in a probe for detecting radiation. The scintillating optical fiber is fused to an extension fiber leading to optoelectronics such as p-intrinsic n-photodiodes or avalanche photodiodes. The fibers are housed in a durable probe body for penetration into the ground. When radiation is present, dopants in the scintillating fiber emit visible light through the extension fiber to the optoelectronics. Amplifiers are provided for monitoring the light intensity transmitted along the fibers and for triggering an alarm circuit signaling the presence of radiation at the probe.

    Abstract translation: 闪烁光纤用于探测辐射的探头。 闪烁光纤熔接到通向光电子的延伸光纤,例如p本征n-光电二极管或雪崩光电二极管。 纤维被容纳在耐用的探针体中以便穿透到地面中。 当存在辐射时,闪烁光纤中的掺杂剂通过延伸光纤向光电子发射可见光。 提供放大器用于监测沿着光纤传输的光强度,并且用于触发报警电路,用信号通知探测器处是否存在辐射。

    Very high resolution autofluoroscope for ionizing radiation
    277.
    发明授权
    Very high resolution autofluoroscope for ionizing radiation 失效
    用于电离辐射的非常高分辨率的自动荧光仪

    公开(公告)号:US4973845A

    公开(公告)日:1990-11-27

    申请号:US289012

    申请日:1988-12-22

    CPC classification number: G01T1/201 G01T1/1644

    Abstract: A very high resolution radiochromatogram for ionizing radiation comprises at least one array made up of a set of filament-like members adapted to enable spatial marking of a surface to be analyzed according to a specific frame of reference and adapted to detect said radiation by scintillation and to transmit light produced by such detection. The array is formed by two groups of optical fibers. Each fiber is disposed along a respective straight line segment defining two orthogonal directions delimiting an analysis plane or surface. At least one of the groups is subdivided into two elementary groups spaced in a direction perpendicular to the analysis plane or surface. The fibers of the elementary groups are parallel.

    Abstract translation: 用于电离辐射的非常高分辨率的放射色谱包括至少一个由一组灯丝状构件组成的阵列,所述阵列适合于根据特定的参照系对待分析的表面进行空间标记,并适于通过闪烁检测所述辐射, 以透射由这种检测产生的光。 该阵列由两组光纤形成。 每个光纤沿着限定分析平面或表面的两个正交方向的相应直线段设置。 组中的至少一个被细分成沿垂直于分析平面或表面的方向间隔开的两个基本组。 基团的纤维是平行的。

    Large area solid state nucler detector with high spatial resolution
    278.
    发明授权
    Large area solid state nucler detector with high spatial resolution 失效
    大面积固态荧光检测器具有高空间分辨率

    公开(公告)号:US4942302A

    公开(公告)日:1990-07-17

    申请号:US154004

    申请日:1988-02-09

    Inventor: Walter Koechner

    CPC classification number: G01T1/201 G01T1/203

    Abstract: A large area nuclear detection system with high resolution includes a sensor formed of scintillating optical fibers and a remotely located detector comprising at least a pair of microchannel plate photomultiplier tubes, with the sensitive area of the sensor being many times the area of the detectors. Two linear arrays of optical fibers are arranged orthogonally to define a sensor matrix of rows and columns of fibers. Nuclear radiation from a particle at the sensor is converted to optical energy by the sensor. A microchannel PMT is connected with each array for measuring the optical energy output of the fibers thereof to determine the row and column location of the nuclear particle in accordance with the quantity of energy received from the fibers. Thus, nuclear radiation can be detected over a large area with a high degree of accuracy and resolution. A characterizing feature of the detection system is the conversion of the output of large orthogonally arranged layers of scintillator elements from a long and narrow rectangular format to a square or round output format to match the detector which typically has round or square sensitive areas of a few centimeters.

    Abstract translation: 具有高分辨率的大面积核检测系统包括由闪烁光纤形成的传感器和位于远处的检测器,其包括至少一对微通道板光电倍增管,传感器的敏感区域是检测器面积的许多倍。 光纤的两个线性阵列被正交布置以限定纤维行和列的传感器矩阵。 来自传感器的颗粒的核辐射由传感器转换为光能。 微通道PMT与每个阵列连接,用于测量其纤维的光能输出,以根据从纤维接收的能量的量来确定核颗粒的行和列位置。 因此,可以在大面积上以高精度和高分辨率检测核辐射。 检测系统的特征在于将大的正交排列的闪烁体元件的输出从长而窄的矩形格式转换为平方或圆形的输出格式以匹配通常具有少量的圆形或方形敏感区域的检测器 厘米。

    Nuclear fiber sensor remote detection system
    279.
    依法登记的发明
    Nuclear fiber sensor remote detection system 失效
    核纤维传感器远程检测系统

    公开(公告)号:USH801H

    公开(公告)日:1990-07-03

    申请号:US336456

    申请日:1989-03-17

    CPC classification number: G01T1/201

    Abstract: A nuclear radiation detection system for remote monitoring of movement of nuclear material over a road or highway. Nuclear fiber sensors, which may be several meters long, are covertly positioned in at least two monitoring points, such as buried shallowly under the roadway or hung from a tunnel wall, along the path which a nuclear source may be clandestinely moved. These fiber sensors are individually connected, by an epoxy glue, to individual transmitting optical fibers. Movement of a nuclear radiation source in close proximity to the fiber sensors at the two or more monitoring points produces an optical signal which exceeds a preestablished threshold. These optical signals travel through the transmitting optical fibers, which may be about 1 kilometers long, to a electronic system comprised of a microprocessor controlled signal detecting, signal processing and even data storage means. The optical fibers and electronic system are also selectively hidden from view for security reasons. Any movement of a nuclear source is detected by strength and duration radiation signal data which is stored in the microprocessor memory. This data may be removed from the processor and read out by a data key means.

    Apparatus for the remote localization of radioactive sources
    280.
    发明授权
    Apparatus for the remote localization of radioactive sources 失效
    用于远程定位放射源的装置

    公开(公告)号:US4797701A

    公开(公告)日:1989-01-10

    申请号:US813333

    申请日:1985-12-26

    Applicant: Andre Lannes

    Inventor: Andre Lannes

    Abstract: Apparatus for the remote localization or location of radioactive sources having a pinhole camera, whereof the walls constitute a shield for radioactive radiation, said camera having an opening making it possible to introduce a first film able to detect radioactive radiation emitted by said sources and positioned facing the pinhole, a second film sensitive to visible light at the same location as the first and a plug constituting a shield for the radioactive radiation and used for closing said opening during the operation of the apparatus. Preferably, the pinhole is defined by a double cone. Preferably it constitutes a double diaphragm, a small diaphragm permitting the passage of radioactive radiation and light and a large diaphragm only permitting the passage of radioactive radiation.

    Abstract translation: 用于具有针孔照相机的放射源的远程定位或位置的装置,其中壁构成放射性辐射的屏蔽,所述照相机具有开口,使得可以引入能够检测由所述源发射的放射性辐射的第一膜和定位的面 针孔,在与第一个位置相同的位置处对可见光敏感的第二膜和构成放射性辐射的屏蔽的插塞,并且用于在装置的操作期间关闭所述开口。 优选地,针孔由双锥形限定。 优选地,它构成双隔膜,允许放射线辐射和光的通过的小隔膜和仅允许放射性辐射通过的大隔膜。

Patent Agency Ranking