-
公开(公告)号：US5896429A
公开(公告)日：1999-04-20
申请号：US929641
申请日：1997-09-15
CPC分类号： G01B21/02 , G01B15/02 , G01N23/10 , G01N23/20066
摘要： A method and apparatus is disclosed for inspecting a wall to evaluate the remaining thickness of the wall as well as the extent to which the wall has been infiltrated by another material. The disclosure discusses directing photons of radiation and/or neutrons into the wall and measuring and analyzing the radiation emitted from the wall as a result of Compton scattering, pair production, photoelectric absorption and/or neutron absorption. The invention is particularly well suited for inspecting a carbon hearth-wall liner of an iron-smelting blast furnace.
摘要翻译： 公开了一种用于检查墙壁以评估壁的剩余厚度以及壁被另一种材料渗透的程度的方法和装置。 本公开讨论了将辐射和/或中子的光子引导到壁中并且测量和分析由于Compton散射，成对生产，光电吸收和/或中子吸收而从壁发射的辐射。 本发明特别适用于检查铁冶炼高炉的碳底壁衬套。
-
公开(公告)号：US06693281B2
公开(公告)日：2004-02-17
申请号：US10039487
申请日：2001-12-31
申请人： Gongyin Chen , Richard C. Lanza
发明人： Gongyin Chen , Richard C. Lanza
IPC分类号： G01N2300
CPC分类号： G01T1/2928
摘要： Methods and apparatus involving neutron resonance radiography are used to map the elemental composition of an object. Sets of neutrons having energies within particular energy bands are directed through an object to be imaged. The attenuation of the neutrons passed through the object is detected, and that data can be used to detect explosives, weapons, drugs and other contraband.
摘要翻译： 使用涉及中子共振射线照相术的方法和装置来绘制物体的元素组成。 在特定能带内具有能量的中子集被引导通过待成像的物体。 检测到通过物体的中子的衰减，该数据可用于检测炸药，武器，毒品等违禁品。
-
公开(公告)号：US06205195B1
公开(公告)日：2001-03-20
申请号：US09258483
申请日：1999-02-26
申请人： Richard C. Lanza
发明人： Richard C. Lanza
IPC分类号： G21G106
CPC分类号： G01V5/0069 , G01N23/204 , G01N23/22 , G01T1/295
摘要： This invention provides coded aperture imaging apparatus and methods for the detection and imaging of radiation which results from nuclear interrogation of a target object. The apparatus includes: 1) a radiation detector for detecting at least a portion of the radiation emitted by the object in response to nuclear excitation and for producing detection signals responsive to the radiation; 2) a coded aperture disposed between the detector and the object such that emitted radiation is detected by the detector after passage through the coded aperture; and 3) a data processor for characterizing the object based upon the detection signals from the detector and upon the configuration of the coded aperture. The method includes the steps of: 1) disposing a coded aperture in selected proximity to the object; 2) bombarding the object with a interrogation beam from a source of excitation energy; 3) detecting, with a detector, at least a portion of the radiation emitted in response to the interrogation beam, the detector producing detection signals responsive to the radiation, the detector being disposed so that the coded aperture is between the detector and the object and such that emitted radiation is detected by the detector after passage through the coded aperture; and 4) processing the detection signals to characterize the object based upon radiation detected by the detector after passage through the coded aperture, and based upon the configuration of the coded aperture.
摘要翻译： 本发明提供了编码孔径成像装置和用于由目标对象的核询问产生的辐射的检测和成像的方法。 该装置包括：1）辐射检测器，用于响应核激发检测物体发射的辐射的至少一部分，并产生响应于辐射的检测信号; 2）设置在检测器和物体之间的编码孔径，使得在通过编码孔径之后检测器发射的辐射被检测; 以及3）数据处理器，用于基于来自检测器的检测信号和编码孔径的配置来表征物体。 该方法包括以下步骤：1）将选定的编码孔径布置在物体附近; 2）用来自激发能源的询问光束轰击物体; 3）利用检测器检测响应于询问光束发射的辐射的至少一部分，检测器产生响应于辐射的检测信号，检测器被布置成使得编码孔径在检测器和物体之间，并且 使得发射的辐射在通过编码孔径之后由检测器检测; 以及4）根据经过编码孔径的检测器检测到的辐射，并且基于编码孔径的配置，处理检测信号以表征物体。
-
公开(公告)号：US5090040A
公开(公告)日：1992-02-18
申请号：US321996
申请日：1989-03-10
申请人： Richard C. Lanza , Joseph R. Votano , Tomas Russ
发明人： Richard C. Lanza , Joseph R. Votano , Tomas Russ
CPC分类号： A61B6/505 , G01T1/2928 , G01T1/2935 , G06T1/60 , Y10S378/901
摘要： A data acquisition system is disclosed for use in radiographic imaging. The acquisition system includes at least two memory banks for storing radiographic data from a radiation detector, acquisition circuitry for sensing radiographic data when transmitted by the detector and for writing such data into one of the memory banks, and a controller for selecting a memory bank for storage of the data, and for switching from one memory bank to another, as well as for reading data from one or the other memory banks when such memory bank is not actively acquiring data.
摘要翻译： 公开了用于放射照相成像的数据采集系统。 采集系统包括至少两个用于存储来自辐射检测器的放射线照相数据的存储器组，用于当由检测器发送时用于感测放射线照相数据并用于将这样的数据写入存储体之一的采集电路，以及用于选择存储体的控制器 存储数据，以及从一个存储体切换到另一个存储体，以及当这种存储体未主动获取数据时从一个或另一个存储体读取数据。
-
公开(公告)号：US5005195A
公开(公告)日：1991-04-02
申请号：US321766
申请日：1989-03-10
申请人： Richard C. Lanza , Joseph R. Votano
发明人： Richard C. Lanza , Joseph R. Votano
CPC分类号： A61B6/505 , G01T1/17 , G01T1/2935
摘要： A readout system is disclosed for use in conjunction with a radiation detector to obtain radiographic images. The readout system includes an event gating mechanism for receiving signals which are simultaneously generated at a plurality of locations within a radiation detector in response to a radiation event and an estimating mechanism for identifying the locus of the radiation event from the signals. In one illustrated embodiment the event gating mechanism further includes circuitry for receiving signals from a first and second set of lines defining a 2-dimensional coordinate grid within an area radiation detector.
摘要翻译： 公开了一种与放射线检测器一起使用以获得放射照相图像的读出系统。 读出系统包括事件门控机构，用于接收响应于辐射事件在辐射检测器内的多个位置处同时产生的信号，以及用于从信号中识别辐射事件轨迹的估计机构。 在一个示出的实施例中，事件门控机构还包括用于从定义区域辐射检测器内的二维坐标网格的第一组线路和第二组线路接收信号的电路。
-
公开(公告)号：US4973846A
公开(公告)日：1990-11-27
申请号：US322085
申请日：1989-03-10
申请人： Richard C. Lanza , Joseph R. Votano
发明人： Richard C. Lanza , Joseph R. Votano
IPC分类号： G01T1/185
CPC分类号： G01T1/185
摘要： Radiation detection methods and apparatus measure ionizing radiation propagating from a radiation source, utilizing a chamber having an electrically conductive sheet, an electrode assembly spaced apart from the conductive sheet and segmented into a plurality of electrically discrete electrode segments, and an ionizable medium disposed between the electrode assembly and conductive sheet, for absorbing the ionizing radiation and generating charged particles in proportion to the radiation energy absorbed. An electrical potential can be provided between the electrode assembly and conductive sheet, so that respective electrode segments collect the charged particles. Elements are provided for comparing the number of charged particles collected on respective electrode segments, to provide a measure of the energy distribution of the ionizing radiation, and for compensating for changes in capacitance or electrical potential between the electrode segments and the electrically conductive sheet elements.
摘要翻译： 辐射检测方法和装置测量从辐射源传播的电离辐射，利用具有导电片的腔室，与导电片隔开并分割成多个电离散的电极片段的电极组件，以及布置在 电极组件和导电片，用于吸收电离辐射并与吸收的辐射能量成比例地产生带电粒子。 可以在电极组件和导电片之间提供电位，使得各个电极段收集带电粒子。 提供元件用于比较在各个电极段上收集的带电粒子的数量，以提供电离辐射的能量分布的度量，以及补偿电极段和导电片元件之间的电容或电位的变化。
-
公开(公告)号：US4135091A
公开(公告)日：1979-01-16
申请号：US808515
申请日：1977-06-20
申请人： Richard C. Lanza , A. Robert Sohval
发明人： Richard C. Lanza , A. Robert Sohval
CPC分类号： G01T1/1606 , G01T1/2921 , Y10S505/848
摘要： A radiation imaging system employs a superheated, superconducting colloid detector subjected to an external magnetic field so that the colloid grains are maintained in a metastable superconducting state in the absence of radiation. Intersecting sets of select wires are imbedded in the detector that divide the detector into volumetric resolution elements. Grains in each resolution element that absorb photons emanating from an object "flip" to the normal conducting state. By applying coincident currents to the select wires defining each element, a local magnetic field is produced that opposes the external field so that all the "flipped" grains are reset to the superconducting state. This produces a flux change proportional to the number of photons incident on that element which is sensed and used to develop an x-ray image of the object.
摘要翻译： 放射线成像系统采用经过外部磁场的过热超导胶体检测器，使得胶体粒子在不存在辐射的情况下保持在亚稳态超导状态。 选择线的相交集合嵌入检测器中，将检测器分成体积分辨率元素。 每个分辨率元素中的粒子吸收从对象发出的光子“翻转”到正常导通状态。 通过对限定每个元件的选择线施加一致的电流，产生与外部场相对的局部磁场，使得所有的“翻转”晶粒被复位到超导状态。 这产生与入射到该元件上的光子数量成比例的磁通量变化，该光子被感测并用于显影物体的X射线图像。
-
公开(公告)号：US20080240535A1
公开(公告)日：2008-10-02
申请号：US12132500
申请日：2008-06-03
IPC分类号： G06K9/00
CPC分类号： A61B5/0059 , A61B5/415 , A61B5/418 , A61B6/00 , A61B6/037 , A61B6/4417 , A61B6/5247 , G01T1/1603 , G01T1/295 , G06F19/00
摘要： The invention relates to imaging systems that include a coded aperture detection system and an optical detection system. The coded aperture detection system is configured to detect radiation emitted by a radionuclide present within an object and to provide a first detector signal from the detected radiation. The optical detection system is configured to detect optical radiation from the object and to provide a second detector signal from the detected optical radiation. The system also includes a processor configured to prepare first image data from the first detector signal, second image data from the second detector signal, and registered data indicative of a spatial relationship in at least one dimension between the first and second image data. The invention also includes methods of using the new systems, e.g., for sentinel lymph node mapping and tissue resection.
摘要翻译： 本发明涉及包括编码孔径检测系统和光学检测系统的成像系统。 编码孔径检测系统被配置为检测存在于物体内的放射性核素发射的辐射并且从所检测的辐射提供第一检测器信号。 光学检测系统被配置为检测来自物体的光辐射并且从检测到的光辐射提供第二检测器信号。 该系统还包括配置成从第一检测器信号准备第一图像数据，来自第二检测器信号的第二图像数据和指示第一和第二图像数据之间的至少一维中的空间关系的登记数据的处理器。 本发明还包括使用新系统的方法，例如用于前哨淋巴结作图和组织切除术。
-
公开(公告)号：US4485307A
公开(公告)日：1984-11-27
申请号：US343077
申请日：1982-01-27
申请人： Louis S. Osborne , Richard C. Lanza
发明人： Louis S. Osborne , Richard C. Lanza
CPC分类号： G01T1/2935 , H01J47/02
摘要： A method and apparatus for determining the distribution of a position-emitting radioisotope into an object, the apparatus consisting of a wire mesh radiation converter, an ionizable gas for propagating ionization events caused by electrodes released by the converter, a drift field, a spatial position detector and signal processing circuitry for correlating near-simultaneous ionization events and determining their time differences, whereby the position sources of back-to-back collinear radiation can be located and a distribution image constructed.
摘要翻译： 一种用于确定位置发射放射性同位素分布到物体中的分布的方法和装置，该装置由丝网辐射转换器，用于传播由转换器释放的电极引起的电离事件的可电离气体，漂移场，空间位置 检测器和信号处理电路，用于使近同时电离事件相关并确定其时间差，从而可以定位背对背共线辐射的位置源并构建分布图像。
-
公开(公告)号：US4289969A
公开(公告)日：1981-09-15
申请号：US922982
申请日：1978-07-10
CPC分类号： A61B6/4275 , A61B6/032 , A61B6/4007 , H01J35/04 , H01J35/22 , H05G1/20 , H05G1/70
摘要： Radiation imaging apparatus especially suited for use in a computerized tomographic (CT) scanner employs an array of discrete X-ray sources, each being a cold cathode diode and an adjacent fixed array of closely packed radiation detectors to produce images of rapidly moving body organs such as the beating heart. A variety of alternative X-ray source embodiments are also disclosed.
摘要翻译： 特别适用于计算机断层摄影（CT）扫描仪的放射成像设备采用离散的X射线源阵列，每个离散的X射线源均为冷阴极二极管和相邻的紧密堆积的辐射探测器的固定阵列，以产生快速移动的身体器官的图像， 作为跳动的心脏。 还公开了各种备选的X射线源实施例。
-
-
-
-
-
-
-
-
-
搜索结果
25 条记录 (耗时 0.035 秒)
