With the help of an identified small parameter, asymptotic of the Bessel function are found here for the first time out to the third order of accuracy. On the basis of these asymptotic, spectral expressions for synchrotron radiation, suitable for physical applications, are calculated in greater detail.

中文翻译：

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同步辐射光光谱特性的其他考虑

在确定的小参数的帮助下，贝塞尔函数的渐近性在这里首次被发现为三阶精度。在这些渐近的基础上，将更详细地计算出适用于物理应用的同步加速器辐射的光谱表达式。