High efficiency, high resolution, real-time radiographic imaging system
    232.
    发明授权
    High efficiency, high resolution, real-time radiographic imaging system 失效
    高效,高分辨率,实时放射成像系统

    公开(公告)号:US5308986A

    公开(公告)日:1994-05-03

    申请号:US992140

    申请日:1992-12-17

    Inventor: James K. Walker

    CPC classification number: G01T1/201 G01T1/203 G02B6/02033

    Abstract: A new scintillating optical fiber is used in an array as a scintillator plate for imaging with high energy radiation, particles and the like. The scintillating optical fiber has an inner plastic core fiber which is transparent to visible radiation and has an index of refraction of about 1.45 or greater. The inner plastic core fiber has a plastic cladding material which has an index of refraction less than that of the inner plastic core fiber. The inner plastic core fiber contains a polymeric matrix material; a metal moiety; and an organic quench-resistant fluorescent material. The scintillator plates are useful in producing high efficiency and high resolution radiographic systems for x-ray medical diagnosis or non-destructive inspection as well as non-destructive inspection with thermal neutrons. In medical x-ray applications, such as mammography, the need for lower doses of x-rays for a given image quality is met and exceeded by the higher detection efficiency of the scintillator plates and their associated electronic read-out system.

    Abstract translation: 在阵列中使用新的闪烁光纤作为用于利用高能量辐射,粒子等进行成像的闪烁体板。 闪烁光纤具有对可见光辐射透明并具有约1.45或更高的折射率的内部塑料芯光纤。 内部塑料芯纤维具有塑料包层材料,其折射率小于内部塑料芯纤维的折射率。 内部塑料芯纤维含有聚合物基质材料; 金属部分; 和有机防淬火荧光材料。 闪烁体板可用于生产用于X射线医学诊断或非破坏性检查的高效率和高分辨率射线照相系统以及具有热中子的非破坏性检查。 在诸如乳房X线照相术的医学x射线应用中,由于闪烁体板及其相关联的电子读出系统的更高的检测效率,满足并超过给定图像质量的较低剂量的x射线的需要。

    Method and apparatus for detecting radioisotopes in fluids
    234.
    发明授权
    Method and apparatus for detecting radioisotopes in fluids 失效
    用于检测流体中放射性同位素的方法和装置

    公开(公告)号:US4975583A

    公开(公告)日:1990-12-04

    申请号:US382699

    申请日:1989-08-07

    CPC classification number: G01T1/201 G01T7/02

    Abstract: An apparatus for detecting radioisotopes in fluids (e.g., in gas/liquid chromatography) comprises a bundle of scintillating optical fibres 12 extending along the interior of a conduit 10 through which a fluid may flow. The bundle of scintillating optical fibres has ends 14, 16 passing through the side of the conduit 10 to connect with light detecting means 18, 20. Other embodiments and methods of use are disclosed.

    Abstract translation: PCT No.PCT / GB88 / 00099 Sec。 371日期1989年8月7日 102(e)日期1989年8月7日PCT提交1988年2月18日PCT公布。 出版物WO88 / 06297 日本1988年8月25日。用于检测流体中的放射性同位素的装置(例如,在气/液色谱中)包括沿着导管10的内部延伸的闪烁光纤12束,流体可以通过该内部流动。 闪烁光纤束具有通过导管10侧的端部14,16,以与光检测装置18,20连接。其它实施例和使用方法被公开。

    Annular x-ray inspection system
    235.
    发明授权
    Annular x-ray inspection system 失效
    环形X射线检查系统

    公开(公告)号:US4845769A

    公开(公告)日:1989-07-04

    申请号:US819655

    申请日:1986-01-17

    CPC classification number: G01T1/201 G01N23/04

    Abstract: A high energy imaging system provides a "slotted" or "slot-shaped" or "rectangular cross-section" beam of illumination to intercept an annular region of an object of revolution as it is rotated. A detector array is located to intercept the illumination beam emanating from the object. The detector array includes an opto-electric transducer imaging a plurality of scintillating optical fiber or fiber bundles. The optical fiber or fiber bundles are located substantially parallel to each other with longitudinal axes substantially perpendicular to the direction of the illuminating radiation and parallel to the longitudinal axis of the object being imaged.

    Abstract translation: 高能成像系统提供“开槽”或“槽形”或“矩形横截面”的照明光束,以在旋转对象中截取旋转对象的环形区域。 探测器阵列被定位成拦截从物体发出的照明光束。 检测器阵列包括成像多个闪烁光纤或光纤束的光电换能器。 光纤或纤维束基本上彼此平行地定位,纵轴基本上垂直于照射辐射的方向并且平行于被成像物体的纵向轴线。

    Nuclear and pressure sensitive line/perimeter detection system
    236.
    发明授权
    Nuclear and pressure sensitive line/perimeter detection system 失效
    核和压力敏感线/周界检测系统

    公开(公告)号:US4598202A

    公开(公告)日:1986-07-01

    申请号:US615336

    申请日:1984-05-30

    Inventor: Walter Koechner

    CPC classification number: G01T1/201 G01T1/023 G01T1/20

    Abstract: A system for simultaneously detecting nuclear radiation and pressure combines light signals from a radiation sensitive scintillating optical fiber with light signals from a pressure sensitive optical fiber. The scintillating fiber is coupled to a light transmitting optical fiber for long distance light transmission to a detector unit such as a photomultiplier tube. The concurrent detection of radiation and pressure of radiation and pressure is used to trigger an alarm signal.

    Abstract translation: 用于同时检测核辐射和压力的系统将来自辐射敏感闪烁光纤的光信号与来自压敏光纤的光信号相结合。 闪烁光纤耦合到光传输光纤,用于远距离光传输到诸如光电倍增管的检测器单元。 同时检测辐射和压力的辐射和压力用于触发报警信号。

    Radiation Measuring System
    237.
    发明公开

    公开(公告)号:US20240288593A1

    公开(公告)日:2024-08-29

    申请号:US18175944

    申请日:2023-02-28

    Applicant: Santiago Beron

    Inventor: Santiago Beron

    CPC classification number: G01T1/2002 G01T1/2006 G01T1/201

    Abstract: A system is provided for measuring radiation, the system includes an optical fiber cable assembly coupled to one or more scintillation detectors, a data acquisition module for measuring an output generated by said one or more scintillation detectors and a cartridge module that is permanently engaged with said optical fiber cable assembly and removably engaged with said data acquisition module.

    URINARY CATHETER FOR DETECTING RADIATION
    239.
    发明公开

    公开(公告)号:US20240115879A1

    公开(公告)日:2024-04-11

    申请号:US18541038

    申请日:2023-12-15

    Applicant: NU-RISE Lda

    Abstract: Interstitial brachytherapy is a cancer treatment in which radioactive material is placed directly in the target tissue of the affected site using an afterloader. The accuracy of this placement is monitored in real time using a urinary catheter that locates the radioactive material according to the radiation levels measured by sensors in the walls of the urinary catheter. A scintillator that is embedded in the walls of the urinary catheter produces light when irradiated by the radioactive material. This light is proportional to the level of radiation at each location. The light produced by each scintillator is carried through optical fibers and then converted to an electrical signal that is proportional to the light and the radiation level at each location. The radioactive material is located according to the plurality of electrical signals. This location can be used as quality control feedback to the afterloader.

    PLASTIC SCINTILLATING FIBER AND ITS MANUFACTURING METHOD

    公开(公告)号:US20230384466A1

    公开(公告)日:2023-11-30

    申请号:US18032090

    申请日:2021-07-01

    CPC classification number: G01T1/201 G02B6/03616

    Abstract: A plastic scintillating fiber includes: a core containing a transparent resin having scintillating properties and at least one type of fluorescent substance that absorbs the scintillation light and converts the absorbed light into light having a wavelength longer than that of the absorbed light; a cladding layer covering an outer peripheral surface of the core and having a refractive index lower than that of the core; and an outermost peripheral layer covering an outer peripheral surface of the cladding layer and containing a compound of a heavy metal element. The core, the cladding layer, and the outermost peripheral layer are integrally formed.

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