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1、选择题 关于回旋加速器加速带电粒子所获得的能量,下列说法正确的是( )
A.与加速器的半径有关,半径越大,能量越大
B.与加速器的磁场有关,磁场越强,能量越大
C.与加速器的电场有关,电场越强,能量越大
D.与带电粒子的质量和电量均有关,质量和电量越大,能量越大
参考答案:AB
本题解析:
本题难度:一般
2、选择题 如图所示为回旋加速器的原理示意图,其核心部分是两个靠得非常近的D形盒,两盒分别和一高频交流电源的两极相连,交流高频电源的电压为U,匀强磁场分布在两D形盒内且垂直D形盒所在平面,磁感应强度为B,在D形盒中央S点处放有粒子源.粒子源放出质量为m、带电量为q的粒子(设粒子的初速度为零)被回旋加速器加速,设D形盒的最大半径为R,则( )
A.所加高频交流电的频率应是style="shiti/data:image/png;base64,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" alt="">
B.粒子离开加速器的动能是style="shiti/data:image/png;base64,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" alt="">
C.粒子离开加速器前被加速的次数为style="shiti/data:image/png;base64,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" alt="">
D.粒子在回旋加速器中运动的时间为style="shiti/data:image/png;base64,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" alt="">