发明名称 |
Irradiation field-limiting apparatus, X-ray-generating unit including the irradiation field-limiting apparatus, and X-ray radiography system including the irradiation field-limiting apparatus |
摘要 |
An irradiation field-limiting apparatus connected to an X-ray-generating apparatus includes a pair of first limiting blades defining a width of an opening through which radiation is to pass; a first opening width-adjusting mechanism including a first opening width-adjusting shaft operable to adjust the width of the opening by moving the pair of first limiting blades toward or away from each other; and a first opening center-adjusting mechanism including a first opening center-adjusting shaft operable to adjust a center position of the opening by moving the pair of first limiting blades in a same direction. The first opening width-adjusting shaft and the first opening center-adjusting shaft are coaxially arranged. |
申请公布号 |
US9355752(B2) |
申请公布日期 |
2016.05.31 |
申请号 |
US201414330975 |
申请日期 |
2014.07.14 |
申请人 |
Canon Kabushiki Kaisha |
发明人 |
Ohashi Yasuo;Shiozawa Takashi;Ueda Kazuyuki |
分类号 |
G21K1/04;H05G1/02;G01J1/04 |
主分类号 |
G21K1/04 |
代理机构 |
Canon U.S.A., Inc., IP Division |
代理人 |
Canon U.S.A., Inc., IP Division |
主权项 |
1. An irradiation field-limiting apparatus for limiting an irradiation field, the irradiation field-limiting apparatus comprising:
a pair of first limiting blades defining a width of an opening through which radiation is to pass; a first opening width-adjusting mechanism including a first opening width-adjusting shaft operable to adjust the width of the opening by moving the pair of first limiting blades toward or away from each other; and a first opening center-adjusting mechanism including a first opening center-adjusting shaft operable to adjust a center position of the opening by moving the pair of first limiting blades in a same direction, wherein the first opening width-adjusting shaft and the first opening center-adjusting shaft are coaxially arranged. |
地址 |
Tokyo JP |