An in-vacuum diffractometer for resonant elastic soft x-ray scattering

D. G. Hawthorn; F. He; L. Venema; H. Davis; A. J. Achkar; J. Zhang; R. Sutarto; H. Wadati; A. Radi; T. Wilson; G. Wright; K. M. Shen; J. Geck; H. Zhang; V. Novák; G. A. Sawatzky

doi:10.1063/1.3607438

An in-vacuum diffractometer for resonant elastic soft x-ray scattering

Research output: Contribution to journal › Research article › Contributed › peer-review

Contributors

D. G. Hawthorn - , University of Waterloo (Author)
F. He - , University of Saskatchewan (Author)
L. Venema - , University of Groningen (Author)
H. Davis - , University of British Columbia (Author)
A. J. Achkar - , University of Waterloo (Author)
J. Zhang - , University of Waterloo (Author)
R. Sutarto - , University of British Columbia (Author)
H. Wadati - , University of British Columbia, The University of Tokyo (Author)
A. Radi - , University of British Columbia (Author)
T. Wilson - , University of Saskatchewan (Author)
G. Wright - , University of Saskatchewan (Author)
K. M. Shen - , Cornell University (Author)
J. Geck - , Chair of Physics of Quantum Materials, Leibniz Institute for Solid State and Materials Research Dresden (Author)
H. Zhang - , University of Toronto (Author)
V. Novák - , Czech Academy of Sciences (Author)
G. A. Sawatzky - , University of British Columbia (Author)

Abstract

We describe the design, construction, and performance of a 4-circle in-vacuum diffractometer for resonant elastic soft x-ray scattering. The diffractometer, installed on the resonant elastic and inelastic x-ray scattering beamline at the Canadian Light Source, includes 9 in-vacuum motions driven by in-vacuum stepper motors and operates in ultra-high vacuum at base pressure of 2 × 10^-10 Torr. Cooling to a base temperature of 18 K is provided with a closed-cycle cryostat. The diffractometer includes a choice of 3 photon detectors: a photodiode, a channeltron, and a 2D sensitive channelplate detector. Along with variable slit and filter options, these detectors are suitable for studying a wide range of phenomena having both weak and strong diffraction signals. Example measurements of diffraction and reflectivity in Nd-doped (La,Sr)₂CuO₄ and thin film (Ga,Mn)As are shown.

Details

Original language	English
Article number	073104
Journal	Review of scientific instruments
Volume	82
Issue number	7
Publication status	Published - Jul 2011
Peer-reviewed	Yes

External IDs

ORCID	/0000-0002-2438-0672/work/159172174

Keywords

ASJC Scopus subject areas

Instrumentation