小振幅小周期近似与晶体摆动场辐射的一般特征

General Characteristics for Crystallie Undulator Radiation in Small Amplitude and Small Period Approximation

摘要:

在经典力学框架内，利用小振幅小周期近似对晶体摆动场辐射进行了讨论。结果表明，同大振幅大周期近似相比,小振幅小周期近似下的摆动场辐射具有易分离、能量高和成本低等优点；选择电子做炮弹适合中能和高能，电子源经济实用，且束流品质好；选择正电子做炮弹退道长度长，适合低能和中能。结果还表明，利用小振幅小周期近似可以获得能量为100keV量级的晶体摆动场辐射，填补了同步辐射在这一能区的空白。

Abstract:

In the framework of classical mechanics, crystalline undulator radiation was discussed by using small amplitude and small period approximation. The results show that comparing with the large amplitude and large period approximation, small-amplitude and small period approximation have advantages of easy separation, high energy and low cost, etc. Selecting electron as shells is suitable for medium energy and high-energy, an electron source is economical and practical, and beam quality is good, etc. Selecting positron as shells is suitable for low or and medium energy. The results also indicate that the crystalline undulator radiation with the energy 100KeV can be gained using small-amplitude and small period approximation.