Basic Research on Coherent Inverse Compton Scattering for High Power Soft X-ray Genetation

在本研究中，我们一直在利用我们自己的激光光阴极射频枪开展全面的实验和模拟研究，这是实现这一目的的最佳加速器之一。作为发展之一，我们研究了作为电子束结构从空间到时间域转换的候选的射频偏转器腔。应用FIB技术获得了高深宽比结构，成功地研制出了微缝结构。最后，我们得到了长宽比为15、狭缝尺寸约为100 nm的微缝器件，并利用微缝演示了微缝间距的电子束。此外，我们还利用射频偏转腔实现了电子束的时空转换，并利用发展起来的实现相干康普顿散射的技术，成功地建立了控制微束电子束的基本技术。

In the present study, we have been carrying out the development of overall experimental and simulation studies by using our own Laser photo-cathode RF gun which is one of the best accelerators for achieving the purpose. One of the developments, we have studied the RF deflector cavity as the candidate for the converter of electron beam structure from thin beam in space to time domain. We have succeeded the development of micro-slit by applying the FIB technology to obtain the high aspect ratio structures. Finally, we have obtained micro-slit devices with the aspect ratio of 15 with the slit size is around 100 nm.We have demonstrated the micro-spacing electron beam by using micro-slits. Further, we have operated the RF deflector cavity for the space to time conversion of electron beam, and we have succeeded the establishment of the basic technology by controlling the micro-bunched electron beam using the developed technology for the realization of coherent Compton scattering.