Novel radio-frequency gun structures for ultrafast relativistic electron diffraction

P Musumeci; L Faillace; A Fukasawa; J T Moody; B O'Shea; J B Rosenzweig; C M Scoby

doi:10.1017/S1431927609090412

Novel radio-frequency gun structures for ultrafast relativistic electron diffraction

Microsc Microanal. 2009 Aug;15(4):290-7. doi: 10.1017/S1431927609090412.

Authors

P Musumeci¹, L Faillace, A Fukasawa, J T Moody, B O'Shea, J B Rosenzweig, C M Scoby

Affiliation

¹ University of California, Los Angeles, Department of Physics and Astronomy, 475 Portola Plaza, Los Angeles, CA 90095-1547, USA. musumeci@physics.ucla.edu

PMID: 19575830
DOI: 10.1017/S1431927609090412

Abstract

Radio-frequency (RF) photoinjector-based relativistic ultrafast electron diffraction (UED) is a promising new technique that has the potential to probe structural changes at the atomic scale with sub-100 fs temporal resolution in a single shot. We analyze the limitations on the temporal and spatial resolution of this technique considering the operating parameters of a standard 1.6 cell RF gun (which is the RF photoinjector used for the first experimental tests of relativistic UED at Stanford Linear Accelerator Center; University of California, Los Angeles; Brookhaven National Laboratory), and study the possibility of employing novel RF structures to circumvent some of these limits.