Single-shot Multi-MeV Ultrafast Electron Diffraction on VELA at Daresbury Laboratory

Lydia K. Rudge, Paul Aden, Deepa Angal-Kalinin, Ryan J. Cash, James A. Clarke, David Holland, Frank Jackson, James Jones, Alexander Kalinin, Paul D. Lane, Storm Mathisen, Julian W. McKenzie, Boris L. Militsyn, Bruno D. Muratori, Tim Noakes, Mark D. Roper, Yuri Saveliev, Duncan Scott, Mark Surman, Jonathan G. UnderwoodDerek A. Wann, Peter Williams

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


Accelerator-based Ultrafast Electron Diffraction (UED) is a technique for studying both static structure and sub-100 fs dynamic structural changes on the atomic scale. In this paper we present the first electron diffraction results, obtained in 2014, on the Versatile Electron Linear Accelerator (VELA) at Daresbury Laboratory. Diffraction patterns were observed with much less than 1 pC transported to the detection screen. Single-shot and multishot accumulated diffraction data are presented from single crystal and polycrystalline samples. Apertures of different sizes placed directly in front of the sample offer some control over the contamination due to dark current, but also reduce the charge contributing to the diffraction pattern. We discuss future developments for electron diffraction on VELA, including further beam optimisation, the measurement of bunch length with a newly installed Transverse Deflecting Cavity (TDC), and the plans for pump-probe studies.

Original languageEnglish
Title of host publicationProceedings of the 6th International Particle Accelerator Conference (IPAC 2015)
Number of pages4
ISBN (Electronic)9783954501687
Publication statusPublished - 2015
Event6th International Particle Accelerator Conference - Richmond, Virginia, United States
Duration: 3 May 20158 May 2015


Conference6th International Particle Accelerator Conference
Abbreviated titleIPAC 2015
Country/TerritoryUnited States
CityRichmond, Virginia

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics

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