CT机将X线锥形束限定为扇形束的部件是A.滤过器B.准直器C.窗口D.探测器E.定位系统

作者: rantiku 人气: - 评论: 0
问题 CT机将X线锥形束限定为扇形束的部件是
选项 A.滤过器 B.准直器 C.窗口 D.探测器 E.定位系统
答案 B
解析 :CT机X线窗口处的准直器,用以屏蔽不必要的射线,产生扇形X线束。扫描层厚通过调整X线束的厚度而改变。

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