公开(公告)号：US20070092058A1

公开(公告)日：2007-04-26

申请号：US10560671

申请日：2004-05-28

Applicant: Rodney Mattson

Inventor： Rodney Mattson

IPC: A61B6/00 ,  G01N23/00 ,  G21K1/12 ,  H05G1/60

CPC classification number: A61B6/032 ,  A61B6/488 ,  A61B6/542 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612

Abstract: A diagnostic imaging system includes an x-ray source (16), which is rotated around an examination region (20). A subject, disposed on a couch (30), is translated longitudinally through the examination region (20). The x-ray source (16) is pulsed at selected angular location(s), e.g. one or both of 6 and 12 o'clock, to transmit x rays through the subject as it is being translated through the examination region (20). The transmitted radiation is being detected by a radiation detector (22) and is reconstructed by an image processor (52) into a two-dimensional projection pilot scan image. A subject contour is calculated and is used along with the radiation attenuation data by a dose calculator (60) to determine the minimum radiation dose required to produce a constant quality image.

Abstract translation: 诊断成像系统包括围绕检查区域（20）旋转的x射线源（16）。 放置在沙发上的被摄体纵向扫过检查区域（20）。 x射线源（16）在选定的角位置例如脉冲。 6和12点的一个或两个，通过被摄体透过检查区域（20）传输x射线。 所发射的辐射由辐射检测器（22）检测，并由图像处​​理器（52）重构为二维投影导频扫描图像。 计算对象轮廓并且通过剂量计算器（60）与辐射衰减数据一起使用以确定产生恒定质量图像所需的最小辐射剂量。

公开(公告)号：US20060227930A1

公开(公告)日：2006-10-12

申请号：US10565291

申请日：2004-07-15

Applicant: Rodney Mattson ,  William Brunnett

Inventor： Rodney Mattson ,  William Brunnett

IPC: H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12

CPC classification number: A61B6/032 ,  A61B6/06 ,  A61B6/4035 ,  A61B6/4291 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612 ,  G01T1/1644 ,  G01T1/1648 ,  G01T1/2985 ,  G21K1/025

Abstract: A radiation detector (30) for a computed tomography scanner (12) includes a plurality of radiation detector modules (32). Each detector module (32) includes an anti-scatter module, at least one radiation absorbing mask (120) and a detector subassembly module (100). The anti-scatter module (32) includes radiation absorbing anti-scatter plates (80). The detector sub-assembly module (100) includes a substrate (102) and an array (104) of detector elements. The radiation absorbing mask (120) is a photoetched grid, formed of a radiation absorbing material and is positioned between the anti-scatter module (78) and the detector elements of array (104). The strip of the grid, that is parallel to the anti-scatter plates (80), is wider than each anti-scatter plate (80). The detector module (32) is aligned with a spatial focus (74) by inserting the alignment pins (160) into the alignment openings (128) of the radiation absorbing mask (120) and the alignment openings (162) of the detector subassembly module (100).

Abstract translation: 用于计算机断层摄影扫描器（12）的辐射检测器（30）包括多个辐射检测器模块（32）。 每个检测器模块（32）包括防散射模块，至少一个辐射吸收掩模（120）和检测器子组件模块（100）。 防散射模块（32）包括辐射吸收防散射板（80）。 检测器子组件模块（100）包括衬底（102）和检测器元件的阵列（104）。 辐射吸收掩模（120）是由辐射吸收材料形成并位于防散射模块（78）和阵列（104）的检测器元件之间的光刻网格。 与防散射板（80）平行的格栅条比每个防散射板（80）宽。 检测器模块（32）通过将对准销（160）插入辐射吸收掩模（120）的对准开口（128）和检测器子组件模块的对准开口（162）中而与空间焦点（74）对准 （100）。

公开(公告)号：US20080063138A1

公开(公告)日：2008-03-13

申请号：US11577604

申请日：2005-10-12

Applicant: Simha Levene ,  Rodney Mattson ,  Ami Altman

Inventor： Simha Levene ,  Rodney Mattson ,  Ami Altman

IPC: G01T1/20 ,  B29C65/52 ,  B29D11/00 ,  C01F17/00 ,  G01N23/04

CPC classification number: G01T1/201 ,  G01T1/2985

Abstract: A radiation detector (24) for an imaging system includes a two-dimensional array (50) of nondeliquescent ceramic scintillating fibers or sheets (52). The scintillating fibers (52) are manufactured from a GOS ceramic material. Each scintillating fiber (52) has a width (d2) between 0.1 mm and 1 mm, a length (h2) between 0.1 mm and 2 mm and a height (h8) between 1 mm and 2 mm. Such scintillating fiber (52) has a height (h8) to cross-sectional dimension (d2, h2) ratio of approximately 10 to 1. The scintillating fibers (52) are held together by layers (86, 96) of a low index coating material. A two-dimensional array (32) of photodiodes (34) is positioned adjacent and in optical communication with the scintillating fibers (52) to convert the visible light into electrical signals. A grid (28) is disposed by the scintillating array (50). The grid (28) has the apertures (30) which correspond to a cross-section of the photodiodes (34) and determine a spatial resolution of the imaging system.

Abstract translation: 用于成像系统的放射线检测器（24）包括非柔性陶瓷闪烁纤维或片（52）的二维阵列（50）。 闪烁纤维（52）由GOS陶瓷材料制成。 每个闪烁光纤（52）的宽度（d 2）在0.1mm和1mm之间，长度（h 2）在0.1mm和2mm之间，高度（h 8）在1mm和2mm之间。 这种闪烁纤维（52）具有大约10比1的横截面尺寸（d 2，h 2）比的高度（h 8）。闪烁纤维（52）由层（86,96）保持在一起 低指数涂料。 光二极管（34）的二维阵列（32）被定位成与闪烁光纤（52）相邻并与之相通，以将可见光转换为电信号。 格栅（28）由闪烁阵列（50）设置。 栅格（28）具有对应于光电二极管（34）的横截面的孔（30）并且确定成像系统的空间分辨率。

公开(公告)号：US20060165214A1

公开(公告)日：2006-07-27

申请号：US10541623

申请日：2003-12-17

Applicant: Rodney Mattson ,  Randall Luhta ,  Marc Chappo

Inventor： Rodney Mattson ,  Randall Luhta ,  Marc Chappo

IPC: H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12

CPC classification number: G01N23/046 ,  G01N2223/419 ,  G01T1/2018 ,  G01T1/2985

Abstract: A radiation detector module includes a scintillator (62, 62′, 162, 262) arranged to receive penetrating radiation of a computed tomography apparatus (10). The scintillator produces optical radiation responsive to the penetrating radiation. A detector array (66, 66′, 166, 266) is arranged to convert the optical radiation into electric signals. Electronics (72, 72′, 172, 272) are arranged on a side of the detector array opposite from the scintillator in a path of the penetrating radiation. A radiation shield (86, 86′, 100, 100′, 100″, 186, 210, 210′, 286, 286′) is disposed between the detector array and the electronics to absorb the penetrating radiation that passes through the scintillator. The radiation shield includes openings (90, 90′) that communicate between the detector array and the electronics. Electrical feedthroughs (88, 88′, 102, 102′, 102″, 188, 212, 212′, 288, 288′) pass through the radiation shield openings and electrically connect the detector array and the electronics.

Abstract translation: 放射线检测器模块包括布置成接收计算机断层摄影装置（10）的穿透辐射的闪烁体（62,62'，162,262）。 闪烁体产生响应穿透辐射的光辐射。 检测器阵列（66,66'，166,266）被布置成将光辐射转换成电信号。 在穿透辐射的路径中，电子器件（72,72'，172,272）被布置在与闪烁体相反的检测器阵列的一侧。 辐射屏蔽（86,86'，100,100'，100“，186,210,210'，286,286'）设置在检测器阵列和电子器件之间以吸收穿过闪烁体的穿透辐射。 辐射屏蔽包括在检测器阵列和电子装置之间通信的开口（90,90'）。 电馈通（88,88'，102,102'，102“，188,212,212'，288,288'）穿过辐射屏蔽开口并电连接检测器阵列和电子装置。