Based on this mathematics model, the optimum signal-processing circuit, having high reliability and high stability, is designed and applied to the automatic measurement system of the focusing units.

基于该数学模型，优化设计了高可靠性、高稳定性的信号调理电路，并在聚焦元件自动测量系统中得到了实际应用。

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The invention discloses an optimum method to control ion beam transmission, which comprises the following steps: (1) adjusting deflecting power to make focusing cup produce beam maximum;

本发明公开了一种离子束传输控制优化方法，包括如下步骤：（1） 调节偏转电源，使得聚焦杯获得束流极大值；

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For sharp-focusing system, the expressions for the position of optimum image plane and its corresponding ETF are also given.

文中还对锐聚焦系统给出了最佳归一化离焦量的表达式和相应的ETF近似公式。

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