Laminated type X-ray filter grating, and manufacturing device and manufacturing method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FUJIKIN INC
- Publication Date
- 2015-04-29
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 1 Figure 2 Figure 3
Abstract
Description
technical field
[0001] The present invention relates to an X-ray filter used in X-ray devices such as X-ray imaging devices and X-ray CT devices. An X-ray filter grid that passes X-rays and passes primary X-rays. Background technique
[0002] Figure 12 It is a general X-ray filter grating, especially a sectional explanatory diagram of a cluster filter grating. The X-ray filter grating 114 is a plate-shaped member configured by alternately arranging through-hole X-ray transmitting portions 112 that transmit X-rays and X-ray absorbing portions 110 that absorb and block X-rays. The X-ray absorbing portion 110 is made of an X-ray absorbing metal, for example, a metal with a high atomic number such as Pb, W, Ta, Re, Pt, Au, and Cu. On the other hand, the X-ray transmitting portion 112 may be an air layer, or may be filled with a substance that easily transmits X-rays, such as Al or resin. In particular, an X-ray filter in which the X-ray transmitting portion 112 is an air lay...