公开(公告)号：US20150146864A1

公开(公告)日：2015-05-28

申请号：US14582931

申请日：2014-12-24

Applicant: FUJIFILM Corporation

Inventor： Takashi TAJIMA ,  Yusuke KITAGAWA

IPC: A61B6/00

CPC classification number: A61B6/4283 ,  A61B6/542 ,  A61B6/56 ,  G01D18/00

Abstract: A cassette holder of an imaging stand is provided with first and second catch members for catching and holding an electronic cassette from above and below. The first catch member has a multi connector connected to a multi terminal of the electronic cassette. The multi connector is offset with respect to a center line of an imaging surface of the cassette holder. The multi terminal is offset with respect to a center line of an irradiation surface of the electronic cassette in the same direction by the same amount as those of the multi connector. In a state where said electronic cassette mounted on a tray is loaded into the cassette holder, the center line of the irradiation surface coincides with the center line of the imaging surface.

公开(公告)号：US20150131784A1

公开(公告)日：2015-05-14

申请号：US14604352

申请日：2015-01-23

Applicant: FUJIFILM CORPORATION

Inventor： Takashi TAJIMA ,  Takeshi KUWABARA ,  Yusuke KITAGAWA

IPC: A61B6/00

CPC classification number: H01L27/14603 ,  A61B6/4233 ,  A61B6/4291 ,  A61B6/4452 ,  A61B6/542 ,  A61B6/585 ,  G01T1/026 ,  G01T1/1603 ,  H01L27/1446 ,  H01L27/14658 ,  H01L27/14812 ,  H05G1/28 ,  H05G1/38 ,  H05G1/42 ,  H05G1/44

Abstract: An image detector is disposed behind a grid. The image detector has normal pixels and measurement pixels. Out of a group of measurement pixels based on which an average value of dose measurement signals is calculated, a [C/D] number of measurement pixels are disposed or chosen in a cycle Z=(R×C)±D. Wherein, C represents a cycle of a repetition pattern appearing in an arrangement direction of X-ray transparent layers and X-ray absorbing layers in an X-ray image of the grid, and is represented in units of the number of pixels. R represents a natural number of 0 or more. D represents an integer less than the cycle C. [C/D] represents a maximum integer equal to or less than C/D. Provided that at least the [C/D] number of measurement pixels are shifted C occasions by one pixel, if D=1, the average value of the dose measurement signals is invariable without any variations.

Abstract translation: 图像检测器设置在格栅后面。 图像检测器具有正常的像素和测量像素。 在基于其计算剂量测量信号的平均值的一组测量像素中，在周期Z =（R×C）±D中设置或选择测量像素的[C / D]数量。 其中，C表示在格子的X射线图像中的X射线透明层和X射线吸收层的配置方向上出现的重复图案的周期，以像素数为单位表示。 R表示0以上的自然数。 D表示小于循环C的整数。[C / D]表示等于或小于C / D的最大整数。 假设至少将[C / D]个测量像素数C位移一个像素，如果D = 1，则剂量测量信号的平均值是不变的，没有任何变化。

公开(公告)号：US20140211922A1

公开(公告)日：2014-07-31

申请号：US14228537

申请日：2014-03-28

Applicant: FUJIFILM Corporation

Inventor： Takeshi KUWABARA ,  Takeshi KAMIYA ,  Yusuke KITAGAWA ,  Takashi TAJIMA

IPC: A61B6/00

CPC classification number: A61B6/542 ,  A61B6/4233 ,  A61B6/4283 ,  A61B6/54 ,  A61B6/56 ,  A61B6/585 ,  G03B42/02

Abstract: Upon input of a synchronization signal, which indicates a start of an X-ray emission, from a source control unit for controlling an X-ray source, an electronic cassette makes an FPD start an accumulation operation and measurement of an X-ray dose. The electronic cassette and a console command their communicators to stop communication of any signal other than a stop signal, which stops the X-ray emission from the X-ray source, during the accumulation operation of the FPD. As soon as the X-ray dose has reached a predetermined threshold value, the electronic cassette transmits the stop signal to the source control unit through the console. A delay in transmission of the stop signal due to communication congestion or signal collision does not occur, because the electronic cassette and the console stop the communication of the signal other than the stop signal.

Abstract translation: 当从用于控制X射线源的源控制单元输入表示X射线发射开始的同步信号时，电子盒使FPD开始累积操作和X射线剂量的测量。 电子盒式磁带和控制台命令其通信器在FPD的累积操作期间停止通信，停止来自X射线源的X射线发射的停止信号以外的任何信号。 一旦X射线剂量达到预定阈值，电子盒通过控制台将停止信号发送到源控制单元。 由于电子盒式磁带和控制台停止除了停止信号之外的信号的通信，不会发生由于通信拥塞或信号冲突而导致的停止信号的发送延迟。