公开(公告)号：US06337896B1

公开(公告)日：2002-01-08

申请号：US09623523

申请日：2000-10-03

申请人： Bernard Munier ,  Guy Roziere

发明人： Bernard Munier ,  Guy Roziere

IPC分类号： A61B603

CPC分类号： A61B6/032 ,  Y10S378/901

摘要： In order to solve an analogue/digital conversion dynamic swing problem encountered with detectors, especially solid-state detectors, of a tomodensitometer, there is provision to operate converters at a greater frequency, that is to say more often. In doing this, the converters used need not have as large a conversion dynamic swing. It is shown that instead of a 20-bit conversion, one can make do with a 14-bit conversion. The various conversions are added together to construct the signal. The measurement is thereafter switched, by way of improvement, as a function of the level of the signal received. This measurement is performed according to one mode of use or another, in which modes this acceleration of the rate of analogue/digital conversion is or is not effected.

摘要翻译： 为了解决一种模式/数字转换动态摆动问题，它遇到了一种测深仪的检测器，特别是固态检测器，所以提供了更频繁地操作转换器，也就是说更频繁地操作转换器。 在这样做时，所使用的转换器不需要具有如此大的转换动态摆幅。 显示了代替20位转换，可以做14位转换。 将各种转换相加在一起构成信号。 此后，作为接收信号的电平的函数，通过改进来切换测量。 该测量根据一种使用模式或另一种模式进行，其中模式/数字转换速率的加速是或不受影响的。

公开(公告)号：US06608311B1

公开(公告)日：2003-08-19

申请号：US09869117

申请日：2001-06-25

申请人： Guy Roziere ,  Bernard Munier

发明人： Guy Roziere ,  Bernard Munier

IPC分类号： G01T124

CPC分类号： H04N5/378 ,  H04N5/365

摘要： An image detector using arrays of photodiodes, and in particular to a radiological image detector. In the image detector, all the photodiodes of one and the same array are linked to adapter amplifiers embodied in the form of at least one integrated circuit. In each integrated circuit, an adapter amplifier, to which no photodiode is linked, delivers a voltage serving as a reference to define a bias voltage to be applied to the photodiodes. This arrangement makes it possible in particular to associate photosensitive arrays with amplifiers exhibiting different voltage thresholds.

摘要翻译： 一种使用光电二极管阵列的图像检测器，特别是放射图像检测器。 在图像检测器中，同一阵列的所有光电二极管与以至少一个集成电路形式实现的适配器放大器相连。 在每个集成电路中，没有光电二极管连接到的适配器放大器传送用作基准的电压以限定要施加到光电二极管的偏置电压。 这种布置使得可以特别地使光敏阵列与表现出不同电压阈值的放大器相关联。

公开(公告)号：US06335958B1

公开(公告)日：2002-01-01

申请号：US09623522

申请日：2000-10-03

申请人： Bernard Munier ,  Guy Roziere

发明人： Bernard Munier ,  Guy Roziere

IPC分类号： A61B603

CPC分类号： G01T1/17 ,  Y10S378/901

摘要： To solve a control complexity problem encountered with very numerous detectors of a tomodensitometer, there is provision to group the detectors into groups and to subject all the detectors of a group to the same processing. By way of improvement, the determination of the mode of processing is performed during a view, and the processing is applied to the signals detected during a subsequent view.

摘要翻译： 为了解决超声检测仪的非常多的检测器所遇到的控制复杂性问题，提供了将检测器组合成组并使组的所有检测器进行同样的处理。 通过改进，在视图中执行处理模式的确定，并且处理被应用于在后续视图期间检测到的信号。

公开(公告)号：US4933562A

公开(公告)日：1990-06-12

申请号：US254594

申请日：1988-10-07

申请人： Guy Roziere

发明人： Guy Roziere

IPC分类号： G01N23/00 ,  G01T1/20 ,  G01T1/36

CPC分类号： G01T1/2018 ,  G01T1/2008

摘要： Disclosed are detectors, of the type comprising scintillators, enabling the detection of radiation with different energy levels. The scintillator used in the case of a double energy X-ray detector consists of two materials, one sensitive to high-energy radiation and the other sensitive to low-energy radiation, the former emitting green radiation and the latter emitting red radiation. These radiations are spatially separated by green and red filters before being measured by photodiodes.

摘要翻译： 公开了包括闪烁体的类型的检测器，能够检测具有不同能级的辐射。 在双能X射线检测器的情况下使用的闪烁体由两种材料组成，一种对高能辐射敏感，另一种对低能辐射敏感，前者发射绿色辐射，后者发射红色辐射。 在通过光电二极管测量之前，这些辐射在空间上被绿色和红色滤光片分开。

公开(公告)号：US5120950A

公开(公告)日：1992-06-09

申请号：US570797

申请日：1990-08-22

申请人： Guy Roziere ,  Paul Petit

发明人： Guy Roziere ,  Paul Petit

IPC分类号： G01T1/161 ,  G01T1/17 ,  G01T1/29

CPC分类号： G01T1/17

摘要： A process for the development of a corrective term, process which can be applied during the acquisition of signals of analog measurements (S1 to Sn) of a radiation detector (21) by an acquisition device (22). Measuring signals (S1 to Sn) are corrected then transmitted to acquisition device (22) in digital form.According to the invention, the measuring signals (S1 to Sn) are corrected analogically before transmitting them to acquisition device (22) by a main analog-to-digital converter (31). This makes it possible to reduce the number of bits required for analog-to-digital converter (31). The process of the invention applies in particular in correcting measuring signals (S1 to Sn) as a function of the dark current.

摘要翻译： 一种在采集装置（22）获取辐射检测器（21）的模拟测量（S1至Sn）的信号期间可以应用的校正项过程的开发过程。 校正测量信号（S1至Sn），然后以数字形式传送到采集设备（22）。 根据本发明，在通过主模数转换器（31）将测量信号（S1至Sn）发送到采集装置（22）之前，类似地校正测量信号（S1至Sn）。 这使得可以减少模数转换器（31）所需的位数。 本发明的方法特别适用于根据暗电流校正测量信号（S1至Sn）。

公开(公告)号：US4101770A

公开(公告)日：1978-07-18

申请号：US796342

申请日：1977-05-12

申请人： Henri Rougeot ,  Guy Roziere

发明人： Henri Rougeot ,  Guy Roziere

IPC分类号： G01T1/164 ,  G06T1/00 ,  G01T1/20

CPC分类号： G01T1/1645 ,  G06T1/0007

摘要： In scintigraphic cameras according to the invention, the treatment of the signals generated by each point of the image in the observation elements is carried out in two steps: a first device with a relatively short delay (0.55.mu.s) roughly localises the point and, at the same time, eliminates the signals outside a given energy band and corrects any inequalities of gain from one point to another of the image; a second device with a longer delay (3.mu.s), which receives the same signals, with a delay equal to that of the first device, and the results of the treatment effected in the latter, defines the precise position of each point.

公开(公告)号：US4147933A

公开(公告)日：1979-04-03

申请号：US795425

申请日：1977-05-10

申请人： Henri Rougeot ,  Guy Roziere

发明人： Henri Rougeot ,  Guy Roziere

IPC分类号： G01T1/29 ,  G01T1/22

CPC分类号： G01T1/2928

摘要： A semiconductor body contains microscopic passages in which multiplication of the free electrons appearing at the entrances to said passages, under the effect of the incident (arrow) ionizing radiation, takes place. In the drawing, the reference 2 signifies the conductive film forming a surface barrier in conjunction with the semiconductor body which is endowed with the property of secondary emission with an emission coefficient better than unity; V.sub.o signifies the voltage applied to the terminals of said barrier; 5 and 6 designate the electron collector.

摘要翻译： 半导体主体包含微观通道，其中在入射（箭头）电离辐射的作用下，出现在入口处的自由电子与所述通道相乘发生。 在附图中，参考文献2表示与具有优于单位的排放系数的具有二次发射性质的半导体主体结合的形成表面阻挡层的导电膜; Vo表示施加到所述屏障的端子的电压; 5和6表示电子收集器。

公开(公告)号：US4187002A

公开(公告)日：1980-02-05

申请号：US846581

申请日：1977-10-28

申请人： Guy Roziere

发明人： Guy Roziere

IPC分类号： G01T1/164 ,  G02B5/20 ,  H01J29/89 ,  G02B5/22 ,  H01J31/50

CPC分类号： H01J29/89 ,  G01T1/1645 ,  G02B5/205

摘要： The present invention relates to a film for correcting gain irregularities occurring between the different points of optical images.The film applied to the image is split into elementary areas of constant transparency. Within each of these areas, the transparency is adjusted by opaque parts separated by transparent parts. The product of the gain of the image by the transparency of the film is maintained constant over the whole of the area of the image. In the example, these elementary areas are squares and the opaque parts are strips of fixed width.Application is to the image intensifier tubes of scintillography circuits.

摘要翻译： 本发明涉及一种用于校正在不同的光学图像点之间出现的增益不均匀的胶片。 应用于图像的胶片被分割成具有恒定透明度的基本区域。 在这些区域的每个区域内，透明度由透明部分分开的不透明部分调整。 通过胶片透明度的图像增益的乘积在整个图像区域上保持恒定。 在该示例中，这些基本区域是正方形，不透明部分是固定宽度的条带。 应用于闪烁电路的图像增强管。