A novel nondestructive diagnostic method for mega-electron-volt ultrafast electron diffraction

doi:10.1038/s41598-019-53824-9

	A novel nondestructive diagnostic method for mega-electron-volt ultrafast electron diffraction
	Yang, Xi 1; Li, Junjie 1; Fedurin, Mikhail 1; Smaluk, Victor 1; Yu, Lihua 1; Wu, Lijun 1; Wan, Weishi2 ; Zhu, Yimei 1; Shaftan, Timur 1
	2019-11-20
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	9
发表状态	已发表
DOI	10.1038/s41598-019-53824-9
摘要	A real-time, nondestructive, Bragg-diffracted electron beam energy, energy-spread and spatial-pointing jitter monitor is experimentally verified by encoding the electron beam energy and spatial-pointing jitter information into the mega-electron-volt ultrafast electron diffraction pattern. The shot-to-shot fluctuation of the diffraction pattern is then decomposed to two basic modes, i.e., the distance between the Bragg peaks as well as its variation (radial mode) and the overall lateral shift of the whole pattern (drift mode). Since these two modes are completely decoupled, the Bragg-diffraction method can simultaneously measure the shot-to-shot energy fluctuation from the radial mode with 2.10(-4) precision and spatial-pointing jitter from the drift mode having wide measurement span covering energy jitter range from 10(-4) to 10(-1). The key advantage of this method is that it allows us to extract the electron beam energy spread concurrently with the ongoing experiment and enables online optimization of the electron beam especially for future high charge single-shot ultrafast electron diffraction (UED) and ultrafast electron microscopy (UEM) experiments. Furthermore, real-time energy measurement enables the filtering process to remove off-energy shots, improving the resolution of time-resolved UED. As a result, this method can be applied to the entire UED user community, beyond the traditional electron beam diagnostics of accelerators used by accelerator physicists.
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收录类别	SCI ; SCIE
语种	英语
资助项目	DOE \| LDRD \| Brookhaven National Laboratory (BNL)[19-016] ; DOE \| LDRD \| Brookhaven National Laboratory (BNL)[19-016] ; DOE \| LDRD \| Brookhaven National Laboratory (BNL)[19-016] ; DOE \| LDRD \| Brookhaven National Laboratory (BNL)[19-016] ; DOE \| LDRD \| Brookhaven National Laboratory (BNL)[19-016] ; DOE \| LDRD \| Brookhaven National Laboratory (BNL)[19-016] ; DOE \| LDRD \| Brookhaven National Laboratory (BNL)[19-016] ; DOE \| LDRD \| Brookhaven National Laboratory (BNL)[19-016] ; DOE \| LDRD \| Brookhaven National Laboratory (BNL)[19-016]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000497712500019
出版者	NATURE PUBLISHING GROUP
WOS关键词	RADIATION-DAMAGE
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/102254
专题	大科学中心_PI研究组_万唯实组大科学中心
通讯作者	Yang, Xi
作者单位	1.Brookhaven Natl Lab, Upton, NY 11973 USA 2.ShanghaiTech Univ, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xi,Li, Junjie,Fedurin, Mikhail,et al. A novel nondestructive diagnostic method for mega-electron-volt ultrafast electron diffraction[J]. SCIENTIFIC REPORTS,2019,9.
APA	Yang, Xi.,Li, Junjie.,Fedurin, Mikhail.,Smaluk, Victor.,Yu, Lihua.,...&Shaftan, Timur.(2019).A novel nondestructive diagnostic method for mega-electron-volt ultrafast electron diffraction.SCIENTIFIC REPORTS,9.
MLA	Yang, Xi,et al."A novel nondestructive diagnostic method for mega-electron-volt ultrafast electron diffraction".SCIENTIFIC REPORTS 9(2019).