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发明公开
CN1937101A 一种用于调整X射线束流的准直器 有权

一种用于调整X射线束流的准直器
摘要：
一种用于调整X射线束流的准直器，属于辐射成像技术领域中对射线束的调整装置。它包括上、下调节机构，左、右调节机构，支撑件和与支撑件连接的调整板。其结构特点是，上、下调节机构是由限位压盖一、转动螺母一、T型丝杠和上、下滑动档块组成。左、右调节机构是由限位压盖二、转动螺母二、水平移动丝杠和左、右滑动档块组成。各限位压盖将各转动螺母限制在其内转动。T型丝杠与上、下滑动档块连接，水平移动丝杠与左、右滑动档块连接。实现分别对准直器的上下和左右对称调整，通过转动螺母，使各丝杠做直线运动而不产生转动，而获得不同射线束流的宽窄。可应用在不同的辐射成像系统的设备中。
摘要（英）：

The collimator includes up, down adjusting mechanism, left, right adjusting mechanism, support member, and adjusting plate connected to the support member. Characters of structure are that up, down adjusting mechanism is composed of limited cover 1, rotation nut 1, T type leading screw, and up, down sliding stopper; left, right adjusting mechanism is composed of limited cover 2, rotation nut 2, level shift leading screw, and left, right sliding stopper; each limited cover restricts rotation position of rotatable nut; T type leading screw is connected to up, down sliding stopper, and level shift leading screw is connected to left, right sliding stopper. The invention implements adjustment at up, down and left, right for collimator. Rotating nut makes each leading screw do rectilinear motion, and not generate rotation so as to obtain stream of bundle of rays in different width. The invention is applicable to devices in different systems of radiation image.

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