Dynamic characteristic of inductive coil is analyzed and compensating methods for big radius inductive coil are given, and these methods proved by tests are feasible.

分析了线圈靶的动态特性，并给出了大半径线圈靶的补偿方法，试验证明：该方法可行。

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In the filed of computer vision and image processing, the characteristic parameters such as the center coordinates and radius of circle and arc parts often need to be measured by their images.

在计算机视觉和图像处理中，经常需要根据圆孔或圆弧的图像求取其中心坐标和半径等特征参数。

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The result shows that the counts in characteristic peak regions increase as the source size increase, and its trends of change with radius of source is almost same as that of photon fluence.

结果表明特征能区的计数随源的半径增加而增加，并且其的变化趋势跟光子注量的变化趋势一致。

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