Undulator beamline of the Brockhouse sector at the Canadian Light Source

Abstract

The Brockhouse project at the Canadian Light Source plans the construction of three beamlines, two wiggler beamlines, and one undulator beamline, that will be dedicated to x-ray diffraction and scattering. In this work, we will describe the undulator beamline main components and performance parameters, obtained from ray tracing using XOP-SHADOW codes. The undulator beamline will operate from 4.95 to 21 keV, using a 20 mm period hybrid undulator placed upstream of the wiggler in the same straight section. The beamline optics design was developed in cooperation with the Brazilian Synchrotron - LNLS. The beamline will have a double crystal monochromator with the options of Si(111) or Si(311) crystal pairs followed by two mirrors in the KB configuration to focus the beam at the sample position. The high brilliance of the undulator source will produce a very high flux of ~10(13) photons/s and high energy resolution into a small focus of 170 μm horizontal and 20-60 μm vertical, depending on the optical configuration and energy chosen. Two multi-axis goniometer experimental stations with area detectors and analyzers are foreseen to enable diffraction, resonant and inelastic scattering experiments, and SAXS/WAXS experiments with high resolution and time resolving capabilities.

The lower energy diffraction and scattering side-bounce beamline for materials science at the Canadian Light Source

“…Here we present the BXDS LE beamline, including the unique IVW and optical design solutions. The BXDS HE (Gomez et al, 2018) and IVU (Diaz et al, 2014) beamlines have been reported previously elsewhere. The calculated performance is presented and compared to results collected during the beamline commissioning period.…”