Note: Single-shot continuously time-resolved MeV ultrafast electron diffraction

Li, Renkai; Huang, Wenhui; Du, Yingchao; Yan, Lixin; Du, Qiang; Shi, Jiaru; Hua, Jianfei; Chen, Huaibi; Du, Taibin; Xu, Haisheng; Tang, Chuanxiang
March 2010
Review of Scientific Instruments;Mar2010, Vol. 81 Issue 3, p036110
Academic Journal
We have demonstrated single-shot continuously time-resolved MeV ultrafast electron diffraction using a static single crystal gold sample. An MeV high density electron pulse was used to probe the sample and then streaked by an rf deflecting cavity. The single-shot, high quality, streaked diffraction pattern allowed structural information within several picoseconds to be continuously temporally resolved with an ∼200 fs resolution. The temporal resolution can be straightforwardly improved to 100 fs by increasing the streaking strength. We foresee that this system would become a powerful tool for ultrafast structural dynamics studies.


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