TITLE

Experimental demonstration of high quality MeV ultrafast electron diffraction

AUTHOR(S)
Renkai Li; Chuanxiang Tang; Yingchao Du; Wenhui Huang; Qiang Du; Jiaru Shi; Lixin Yan; Xijie Wang
PUB. DATE
August 2009
SOURCE
Review of Scientific Instruments;Aug2009, Vol. 80 Issue 8, p083303
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The simulation optimization and an experimental demonstration of improved performances of mega-electron-volt ultrafast electron diffraction (MeV UED) are reported in this paper. Using ultrashort high quality electron pulses from an S-band photocathode rf gun and a polycrystalline aluminum foil as the sample, we experimentally demonstrated an improved spatial resolution of MeV UED, in which the Debye–Scherrer rings of the (111) and (200) planes were clearly resolved. This result showed that MeV UED is capable to achieve an atomic level spatial resolution and a ∼100 fs temporal resolution simultaneously, and will be a unique tool for ultrafast structural dynamics studies.
ACCESSION #
43975423

 

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