公开(公告)号：US20070064877A1

公开(公告)日：2007-03-22

申请号：US11525692

申请日：2006-09-22

Applicant: Yinong Liu ,  Zhiqiang Chen ,  Yuanjing Li ,  Wanlong Wu ,  Yulan Li ,  Xilei Luo ,  Li Zhang ,  Ziran Zhao ,  Bin Sang ,  Hailin Wang

Inventor： Yinong Liu ,  Zhiqiang Chen ,  Yuanjing Li ,  Wanlong Wu ,  Yulan Li ,  Xilei Luo ,  Li Zhang ,  Ziran Zhao ,  Bin Sang ,  Hailin Wang

IPC: G21K1/04

CPC classification number: G21K1/04

Abstract: Disclosed is a collimator for adjusting X-ray beam, comprising: an up-and-down adjustment mechanism (11); a left-and-right adjustment mechanism (21); a supporting member (15); and an adjusting plate (17) connected with the supporting member (15), wherein: said up-and-down adjustment mechanism (11) comprises a first rotating nut (13), an up-and-down moving leading screw (12) threadedly connected with said first rotating nut (13), and upper and lower sliding stops (18) located in said supporting member (15), wherein ends of said leading screw (12) are connected with said upper and lower sliding stops (18) to drive said upper and lower sliding stops (18), respectively, to vertically move; and said left-and-right adjustment mechanism (21) comprises a second rotating nut (23), a horizontally moving leading screw (22) connected with said second rotating nut (23), and left and right sliding stops (25) located in said supporting member (15), wherein inner ends of said horizontally moving leading screw (22) are connected with said left and right sliding stops (25) to drive said left and right sliding stops (25), respectively, to horizontally move. With the above arrangement, symmetrical adjustments along an up-and-down direction and along a left-and-right direction can be obtained. With rotation of the rotating nuts, respective leading screws move linearly rather than rotate, so that X-ray beams with different field angles can be obtained.

Abstract translation: 公开了一种用于调整X射线束的准直器，包括：上下调节机构（11）; 左右调节机构（21）; 支撑构件（15）; 以及与所述支撑构件（15）连接的调节板（17），其中：所述上下调节机构（11）包括第一旋转螺母（13），上下移动的导螺杆（12） 与所述第一旋转螺母（13）螺纹连接，以及位于所述支撑构件（15）中的上部和下部滑动止动件（18），其中所述引导螺钉（12）的端部与所述上部和下部滑动止动件（18）连接， 以驱动所述上滑动止动件（18）分别垂直移动; 并且所述左右调节机构（21）包括第二旋转螺母（23），与所述第二旋转螺母（23）连接的水平移动的导螺杆（22），以及位于 所述支撑构件（15），其中所述水平移动的前导螺钉（22）的内端与所述左右滑动止动件（25）连接以分别驱动所述左滑动止动件（25）和所述左滑动止动件（25）水平移动。 利用上述结构，可以获得沿着上下方向和沿左右方向的对称调节。 随着旋转螺母的旋转，相应的前导螺钉线性移动而不是旋转，从而可以获得具有不同场角的X射线束。