加速器高频D电路Q值的计算与测量
Calculation and measurement of Q factor for RF D-circuit of cyclotron
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摘要: 介绍了回旋加速器高频单D型盒D电路Q值的计算与测量方法。重点对Q值的理论计算进行推导，并对计算原理进行说明。然后对计算结果和测量结果进行比较。得出的计算和测量结果基本吻合。误差产生的主要原因是计算过程中的近似和短路片接触电阻的取值，其中短路片接触电阻是一个重要因素，在设计腔体时应引起足够的重视。Abstract: The paper introduces the calculation and measurement method of Q factor which describes the performance of cyclotron's RF D circuit. It mainly introduces the formula and principle for calculating the Q factor. The calculation data are compared with the measurement data of the capacitor coupling method, which shows good accordance with small errors. Analysis suggests that errors are mainly caused by approximate computation and the value of contacted resistance adopted. As contacted resistance is an important factor, more attention should be paid on it in designing cavities.
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Key words:
- d circuit /
- q factor /
- short-circuit plate /
- transmission line
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