一个用于加速质子的回旋加速器，其核心部分如图所示，D形盒半径为R，垂直D形盒底面的匀强磁场的磁感应强度为B，两D形盒分别与电源相连．下列说法正确的是_刷题宝

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一个用于加速质子的回旋加速器，其核心部分如图所示，D形盒半径为R，垂直D形盒底面的匀强磁场的磁感应强度为B，两D形盒分别与电源相连．下列说法正确的是（）

A：要使加速器能对质子加速，两盒应该与交变电源相连

B：质子在电场中被加速，加速电压越高，射出的速率v越大

C：D型盒的直径越大，射出的率度v越大

D：质子在磁场中运动的周期随质子速度增大而增大

上一题下一题 0.0难度选择题更新时间:2016-01-20 08:28:35

答案(点此获取答案解析）

A,C

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