TY - JOUR
T1 - A compact electron gun for time-resolved electron diffraction
AU - Robinson, Matthew S.
AU - Lane, Paul
AU - Wann, Derek A.
PY - 2015/1
Y1 - 2015/1
N2 - A novel compact time-resolved electron diffractometer has been built with the primary goal of studying the ultrafast molecular dynamics of photoexcited gas-phase molecules. Here, we discuss the design of the electron gun, which is triggered by a Ti:Sapphire laser, before detailing a series of calibration experiments relating to the electron-beam properties. As a further test of the apparatus, initial diffraction patterns have been collected for thin, polycrystalline platinum samples, which have been shown to match theoretical patterns. The data collected demonstrate the focusing effects of the magnetic lens on the electron beam, and how this relates to the spatial resolution of the diffraction pattern.
AB - A novel compact time-resolved electron diffractometer has been built with the primary goal of studying the ultrafast molecular dynamics of photoexcited gas-phase molecules. Here, we discuss the design of the electron gun, which is triggered by a Ti:Sapphire laser, before detailing a series of calibration experiments relating to the electron-beam properties. As a further test of the apparatus, initial diffraction patterns have been collected for thin, polycrystalline platinum samples, which have been shown to match theoretical patterns. The data collected demonstrate the focusing effects of the magnetic lens on the electron beam, and how this relates to the spatial resolution of the diffraction pattern.
UR - https://www.scopus.com/pages/publications/84923799445
U2 - 10.1063/1.4905335
DO - 10.1063/1.4905335
M3 - Article
C2 - 25638074
SN - 0034-6748
VL - 86
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
IS - 1
M1 - 013109
ER -