| 摘要 |
PROBLEM TO BE SOLVED: To provide an accurate curved grid and a radiation image photographing system using the same.SOLUTION: A grid has a plurality of small grids 17-21, and a flexible substrate 26. The small grids 17-21 have grid portions 31 making an X-ray emitted from a focus of an X-ray source partially pass through to form stripe images; and divided portions 32 which is thinner and has lower rigidity than the grid portions 31, and formed at both ends of the grid portions 31. The small grids 17-21 are formed from the same X-ray transmissive substrate and formed by dividing the X-ray transmissive substrate with dividing portions 32. The flexible substrate 26 is made by boding the X-ray transmissive substrate formed with the grid portions 31 and the dividing portions 32. The grid portions 31 of the small grids 17-21 are curved so as to turn to the focus, and the X-ray transmissive substrate is divided by the divided portions to hold the small grids 17-21. |
