基本信息:
- 专利标题： 放射线图像检测装置、放射线摄影系统及其动作方法
- 专利标题（英）：Radiation image detection device, radiation imaging system, and operation method therefor
- 申请号：CN201380045149.5 申请日：2013-06-06
- 公开(公告)号：CN104582576A 公开(公告)日：2015-04-29
- 发明人： 田岛崇史 , 桑原健 , 北川祐介
- 申请人： 富士胶片株式会社
- 申请人地址： 日本东京
- 专利权人： 富士胶片株式会社
- 当前专利权人： 富士胶片株式会社
- 当前专利权人地址： 日本东京
- 代理机构： 中原信达知识产权代理有限责任公司
- 代理人： 熊传芳; 苏卉
- 优先权： 2012-166876 2012.07.27 JP; 2013-109301 2013.05.23 JP
- 国际申请： PCT/JP2013/065669 2013.06.06
- 国际公布： WO2014/017180 JA 2014.01.30
- 进入国家日期： 2015-02-27
- 主分类号： A61B6/00
- IPC分类号： A61B6/00
A radiation image detection device that performs accurate X-ray dose measurement even if the relative positions of a grid and measurement pixels have shifted. An image detection unit (30) is arranged behind the grid (14) having a grid pitch (G). Normal pixels (40a) that detect X-ray images and measurement pixels (40b) that measure X-ray doses are arranged two-dimensionally in the image detection unit (30). Out of one group of measurement pixels (40b) that calculate the average value for dose measurement signals using an Automatic Exposure Control (AEC) unit (54), a number ([C/D]) are arranged or selected using cycle (Z) = (R * C) +/- D; C being the cycle for the repeated pattern appearing in the direction of arrangement of an X-ray transmitting layer (35) and an X-ray absorbing layer (36) in the grid (14), on an X-ray image of the grid (14), the unit being the number of pixels, R being a natural number of at least 0, D being an integer smaller than the cycle (C), and [C/D] being the largest integer no greater than C/D. When D = 1, the average value is the same each time, and variation disappears.
公开/授权文献:
- CN104582576B 放射线图像检测装置、放射线摄影系统及其动作方法 公开/授权日：2017-05-31
IPC结构图谱:
| A | 人类生活必需 |
| --A61 | 医学或兽医学；卫生学 |
| ----A61B | 诊断；外科；鉴定 |
| ------A61B6/00 | 用于放射诊断的仪器，例如与放射治疗设备相结合的 |