Feasibility study of generating ultra-high harmonic radiation with a single stage echo-enabled harmonic generation scheme

详细信息    查看全文

• 作者：Kaishang Zhou ^{zhoukaishang@sinap.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; Chao Feng ; ^{fengchao@sinap.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; Dong Wang ; ^{wangdong@sinap.ac.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Coherent soft x-ray radiation ; Water window ; EEHG ; ISR ; CSR ; IBS
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2016
• 出版时间：21 October 2016
• 年：2016
• 卷：834
• 期：Complete
• 页码：30-35
• 全文大小：2823 K

文摘

The echo enabled harmonic generation (EEHG) scheme holds the ability for the generation of fully coherent soft x-ray free-electron laser (FEL) pulses directly from external UV seeding sources. In this paper, we study the feasibility of using a single stage EEHG to generate coherent radiation in the “water window” and beyond. Using the high-order operating modes of the EEHG scheme, intensive numerical simulations have been performed considering various three-dimensional effects. The simulation results demonstrated that coherent soft x-ray radiation at 150th harmonic (1.77 nm) of the seed can be produced by a single stage EEHG. The decreasing of the final bunching factor at the desired harmonic caused by intra beam scattering (IBS) effect has also been analyzed.