arXivDaily arXiv每日学术速递 周一至周五更新
arXiv physics/0403082physics.acc-ph
收藏

正电子在周期性弯曲晶体中的扩散:晶体波荡子和γ- Laser的可行性

Channeling of Positrons through Periodically Bent Crystals: on Feasibility of Crystalline Undulator and Gamma-Laser

A. V. Korol, A. V. Solov'yov, W. Greiner

摘要:

本文讨论了超相对论正电子在晶体波荡器中沟道产生的电磁辐射。晶体波荡器是一种晶体,其平面以远大于面间距的幅度周期性地弯曲。建立了晶体波荡器操作要满足的各种条件和标准。介绍了晶体弯曲的不同方法。本文给出了晶体波荡器中发射的自发辐射的光谱分布的数值计算结果,并与自由电子激光类似地讨论了在这种系统中产生受激发射的可能性。一个仔细的文献调查,包括制定在这一领域的所有基本思想。我们的研究表明,该机制提供了一个高能量光子的有效来源,这是值得实验研究。

英文摘要:

The electromagnetic radiation generated by ultra-relativistic positrons channelling in a crystalline undulator is discussed. The crystalline undulator is a crystal whose planes are bent periodically with the amplitude much larger than the interplanar spacing. Various conditions and criteria to be fulfilled for the crystalline undulator operation are established. Different methods of the crystal bending are described. We present the results of numeric calculations of spectral distributions of the spontaneous radiation emitted in the crystalline undulator and discuss the possibility to create the stimulated emission in such a system in analogy with the free electron laser. A careful literature survey covering the formulation of all essential ideas in this field is given. Our investigation shows that the proposed mechanism provides an efficient source for high energy photons, which is worth to study experimentally.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑