公开(公告)号：US20040218712A1

公开(公告)日：2004-11-04

申请号：US10249694

申请日：2003-04-30

Inventor： Haochuan Jiang ,  David M. Hoffman ,  James S. Vartuli

IPC: G21K001/12 ,  H05G001/60 ,  A61B006/00 ,  G01N023/00

CPC classification number: G01T1/2985 ,  A61B6/032 ,  A61B6/4233 ,  G01N23/046 ,  G01N2223/419 ,  G01T1/1644 ,  G01T1/201 ,  G21K1/02

Abstract: The present invention is a directed to a non-pixilated scintillator array for a CT detector as well as an apparatus and method of manufacturing same. The scintillator array is comprised of a number of ceramic fibers or single crystal fibers that are aligned in parallel with respect to one another. As a result, the pack has very high dose efficiency. Furthermore, each fiber is designed to direct light out to a photodiode with very low scattering loss. The fiber size (cross-sectional diameter) may be controlled such that smaller fibers may be fabricated for higher resolution applications. Moreover, because the fiber size can be controlled to be consistent throughout the scintillator array and the fibers are aligned in parallel with one another, the scintillator array, as a whole, also is uniform. Therefore, precise alignment with the photodiode array or the collimator assembly is not necessary.

Abstract translation: 本发明涉及用于CT检测器的非像素化闪烁体阵列及其制造方法。 闪烁体阵列包括相对于彼此平行对准的多个陶瓷纤维或单晶纤维。 因此，该包装具有非常高的剂量效率。 此外，每个光纤被设计成将光引导到具有非常低的散射损耗的光电二极管。 可以控制纤维尺寸（横截面直径），使得可以制造更小的纤维用于更高分辨率的应用。 此外，由于可以将整个闪烁体阵列的纤维尺寸控制为一致，并且纤维彼此平行排列，所以闪烁体阵列整体上也是均匀的。 因此，不需要与光电二极管阵列或准直器组件的精确对准。

公开(公告)号：US06384400B1

公开(公告)日：2002-05-07

申请号：US09451030

申请日：1999-11-29

Applicant: Douglas Albagli ,  George Edward Possin ,  Sung Su Han ,  Michael Clement DeJule

Inventor： Douglas Albagli ,  George Edward Possin ,  Sung Su Han ,  Michael Clement DeJule

IPC: H01J4014

CPC classification number: G01T1/201 ,  G01T1/2002

Abstract: A fiber optic scintillator includes, for example, a first plurality of radiation absorbing elements comprising a scintillating material for converting radiation into light and a second plurality of radiation absorbing elements interspersed among the first plurality of radiation absorbing elements. The first plurality of radiation absorbing elements has a first radiation absorption efficiency. The second plurality of radiation absorbing elements has a second radiation absorption efficiency and an effective atomic number greater than about 50. The second radiation absorption efficiency is greater than said first radiation absorption efficiency. A scintillator forming method provides a bundle of the second plurality of radiation absorbing elements interspersed among the first plurality of radiation absorbing elements by drawing the bundle, The drawn bundle is cut into a plurality of sections. The plurality of sections are assembled to form the scintillator having an array of parallel first and second radiation absorbing elements.

Abstract translation: 光纤闪烁器包括例如包括用于将辐射转换成光的闪烁材料的第一多个辐射吸收元件和散布在第一多个辐射吸收元件之间的第二多个辐射吸收元件。 第一组多个辐射吸收元件具有第一辐射吸收效率。 第二多个辐射吸收元件具有大于约50的第二辐射吸收效率和有效原子序数。第二辐射吸收效率大于所述第一辐射吸收效率。 闪烁体形成方法通过拉伸束提供散布在第一多个辐射吸收元件之间的第二多个辐射吸收元件的束。将所拉伸的束切割成多个部分。 组合多个部分以形成具有平行的第一和第二辐射吸收元件的阵列的闪烁体。

公开(公告)号：US06167110A

公开(公告)日：2000-12-26

申请号：US963519

申请日：1997-11-03

Applicant: Gerorge Edward Possin ,  Andrew Joseph Galish ,  Ralph Gerald Isaacs ,  Douglas Albagli ,  Ching-Yeu Wei ,  Thomas William Birdwell ,  Francis Howard Little ,  Sung Su Han

Inventor： Gerorge Edward Possin ,  Andrew Joseph Galish ,  Ralph Gerald Isaacs ,  Douglas Albagli ,  Ching-Yeu Wei ,  Thomas William Birdwell ,  Francis Howard Little ,  Sung Su Han

IPC: G01T5/08 ,  H05G1/60

CPC classification number: G01T1/201

Abstract: A detector (20) for high voltage x-rays includes a plurality of sensor elements (22) with each sensor element being aligned along a respective focal axis (25) with respect to a high voltage x-ray source (24). A fiber optic scintillator (34) is optically coupled to each of said sensor elements and is disposed to receive incident x-ray radiation passing from the object to be imaged. Optical fibers of the scintillator are positioned such that their optical axes are perpendicular to incident x-rays. Each sensor element has a length along the focal axis sufficiently long for the fibers to absorb substantially all incident x-rays. Each sensor element comprises an array of amorphous silicon photosensors disposed to detect light generated by the scintillator.

Abstract translation: 用于高电压X射线的检测器（20）包括多个传感器元件（22），其中每个传感器元件相对于高压x射线源（24）沿相应的焦点轴线对齐。 光纤闪烁体（34）被光学耦合到每个所述传感器元件并被设置成接收从待成像的物体通过的入射的x射线辐射。 闪烁体的光纤被定位成使得它们的光轴垂直于入射的X射线。 每个传感器元件具有沿着焦点轴线的足够长的长度以使纤维基本上吸收所有入射的X射线。 每个传感器元件包括设置成检测由闪烁体产生的光的非晶硅光电传感器的阵列。

公开(公告)号：US5905263A

公开(公告)日：1999-05-18

申请号：US864462

申请日：1997-05-29

Applicant: Hiroshi Nishizawa ,  Kazunori Ikegami ,  Kunio Madono ,  Eisaku Teratani ,  Satoshi Senoo

Inventor： Hiroshi Nishizawa ,  Kazunori Ikegami ,  Kunio Madono ,  Eisaku Teratani ,  Satoshi Senoo

IPC: G21K4/00 ,  A61N5/10 ,  G01T1/02 ,  G01T1/20 ,  G01T1/22 ,  G01T5/08

CPC classification number: G01T1/201 ,  A61N5/1048 ,  G01T1/02 ,  G01T1/22

Abstract: In a depth dose measuring device, a light is outputted from an end surface of a block-type detector (202) formed by tying a plurality of scintillation fibers in a bundle, a spectroscope (204) is used to disperse the light so as to measure an amount of light having a wavelength corresponding to an emission spectrum of the scintillation fibers, a picture measuring device (205) and a picture processing device (206) calculate an emission distribution of only a scintillation light depending upon an emission distribution in which the scintillation light and a Cerenkov light are mixed, and a result is displayed on a display device (207).

Abstract translation: 在深度剂量测量装置中，从通过捆绑多束闪烁纤维形成的块式检测器（202）的端面输出光，使用分光镜（204）分散光，以便 测量具有对应于闪烁纤维的发射光谱的波长的光量，图像测量装置（205）和图像处理装置（206）根据排放分布计算仅闪烁光的发射分布，其中， 闪烁灯和切伦科夫灯混合，结果显示在显示装置（207）上。

公开(公告)号：US5594253A

公开(公告)日：1997-01-14

申请号：US650225

申请日：1996-05-20

Applicant: Clifford Bueno ,  Robert A. Betz ,  Mark H. Ellisman ,  Gary G. Y. Fan

Inventor： Clifford Bueno ,  Robert A. Betz ,  Mark H. Ellisman ,  Gary G. Y. Fan

IPC: G01T1/20 ,  G01T5/08

CPC classification number: G01T1/201 ,  G01T1/2018

Abstract: A hybrid luminescent device for converting ionizing and penetrating radiation energy such as x-rays, gamma rays, neutrons, ions, electrons, and the like into visible light for imaging applications. The hybrid luminescent device includes a phosphor screen disposed on an entrance face fiber optics scintillator which, in turn, may be removably coupled to a camera or like recording media. The hybrid luminescent device of the present invention is capable of providing enhanced radiation absorption efficiency, higher spatial resolution and enhanced brightness or luminescence output over that which is achievable by the phosphor screen and/or fiber optics scintillator when used separately as an intensifying screen for imaging of ionizing and/or penetrating radiation.

Abstract translation: 用于将诸如x射线，γ射线，中子，离子，电子等的电离和穿透辐射能量转换成用于成像应用的可见光的混合发光装置。 混合发光装置包括设置在入射面光纤闪烁体上的荧光屏，其又可拆卸地耦合到相机或类似的记录介质。 本发明的混合发光装置能够提供增强的辐射吸收效率，更高的空间分辨率和增强的亮度或发光输出，超过当荧光屏和/或光纤闪烁体单独用作增强屏幕成像时可实现的 的电离和/或穿透辐射。

公开(公告)号：US5424546A

公开(公告)日：1995-06-13

申请号：US184198

申请日：1994-01-18

Applicant: Hiroyuki Okada ,  Takaji Yamashita

Inventor： Hiroyuki Okada ,  Takaji Yamashita

IPC: G01T1/00 ,  G01T1/20 ,  G01T5/08 ,  G01T1/203

CPC classification number: G01T1/201 ,  G01T1/2008

Abstract: It is an objective of the present invention to provide a scintillation counter that can measure the intensity of only .beta. rays. Two scintillation fibers (11 and 12) which emit different wavelengths are provided in series to a probe (10). One of the scintillation fibers (12) is covered with a .beta.-ray shield. The optical signal generated at the probe (10) is transmitted through the optical fiber (20) and separated by the light separating element (31). One portion of the separated optical signal is incident on a light detector (32) and the intensity of the incident light detected. The other portion of the separated optical signal is incident on a light detector (33) and the intensity of the incident light detected.

Abstract translation: 本发明的目的是提供一种只能测量β射线强度的闪烁计数器。 发射不同波长的两个闪烁纤维（11和12）与探针（10）串联提供。 其中一个闪烁纤维（12）被β射线屏蔽覆盖。 在探针（10）处产生的光信号通过光纤（20）传输并被光分离元件（31）分离。 分离的光信号的一部分入射到光检测器（32）上并检测入射光的强度。 分离的光信号的另一部分入射到光检测器（33）上并检测入射光的强度。

公开(公告)号：US12072453B2

公开(公告)日：2024-08-27

申请号：US17845322

申请日：2022-06-21

Applicant: Lawrence Livermore National Security, LLC

Inventor： Jason Philip Brodsky ,  Nathaniel Sean Bowden

IPC: G01T1/20 ,  G01T1/203 ,  G01T3/06

CPC classification number: G01T1/2006 ,  G01T1/2002 ,  G01T1/201 ,  G01T1/2033 ,  G01T3/06

Abstract: The present disclosure relates to a method for detecting incoming radiation having a plurality of differing properties including at least one of differing types, differing energies or differing incoming directions. The method involves using a scintillator structure formed from first and second dissimilar scintillator materials, where the first and second dissimilar scintillator materials emit first and second different colors of light in response to the incoming radiation. A first light detector is used for detecting light having the first color, and a second light detector is used for detecting light having the second color. A first output signal is generated in response to the detection of light having the first color, and a second output signal is generated in response to detecting light having the second color. The first and second output signals are then analyzed to determine at least one property of the incoming radiation.

公开(公告)号：US20240153659A1

公开(公告)日：2024-05-09

申请号：US18501888

申请日：2023-11-03

Applicant: Battelle Energy Alliance, LLC

Inventor： Luis A. Ocampo Giraldo ,  David L. Chichester ,  James T. Johnson ,  Jay D. Hix ,  Scott J. Thompson ,  Scott M. Watson

IPC: G21F5/12 ,  G01T1/20 ,  G02B6/42 ,  G21F5/002

CPC classification number: G21F5/125 ,  G01T1/2002 ,  G01T1/201 ,  G02B6/4296 ,  G21F5/002 ,  G02B2006/4297

Abstract: A radiation monitoring system includes an optical fiber. The system further includes a scintillating fiber operatively coupled to a first end of the optical fiber at a first end of the scintillating fiber. The system also includes a damage detection device configured to detect damage to at least one of the optical fiber and the scintillating fiber.

公开(公告)号：US11896844B2

公开(公告)日：2024-02-13

申请号：US17236089

申请日：2021-04-21

Applicant: NU-RISE Lda

Inventor： Luis Miguel da Conceição Moutinho ,  Joana Isabel Ferreira dos Santos Melo

IPC: A61N5/10 ,  G01T1/20 ,  A61M25/10

CPC classification number: A61N5/1002 ,  A61M25/10 ,  G01T1/201 ,  G01T1/2002 ,  G01T1/2006 ,  A61M2025/1079 ,  A61N2005/1003 ,  A61N2005/1008 ,  A61N2005/1051

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.

公开(公告)号：US20240045084A1

公开(公告)日：2024-02-08

申请号：US18330336

申请日：2023-06-06

Applicant: RefleXion Medical, Inc.

Inventor： Manat MAOLINBAY

IPC: G01T1/20 ,  G01T1/24 ,  G01T1/29 ,  G01T3/06 ,  A61N5/10 ,  G01T7/00

CPC classification number: G01T1/20183 ,  G01T1/24 ,  G01T1/29 ,  G01T3/06 ,  G01T1/201 ,  G01T1/20187 ,  G01T1/20182 ,  G01T1/2018 ,  A61N5/1049 ,  G01T7/005

Abstract: Disclosed herein are variations of megavoltage (MV) detectors that may be used for acquiring high resolution dynamic images and dose measurements in patients. One variation of a MV detector comprises a scintillating optical fiber plate, a photodiode array configured to receive light data from the optical fibers, and readout electronics. In some variations, the scintillating optical fiber plate comprises one or more fibers that are focused to the radiation source. The diameters of the fibers may be smaller than the pixels of the photodiode array. In some variations, the fiber diameter is on the order of about 2 to about 100 times smaller than the width of a photodiode array pixel, e.g., about 20 times smaller. Also disclosed herein are methods of manufacturing a focused scintillating fiber optic plate.