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Modelling the effects of optical vibrations on photon beam parameters using ray-tracing software

DOI: 10.1107/S1600577521007013 DOI Help

Authors: C. Houghton (Diamond Light Source) , C. Bloomer (Diamond Light Source) , L. Alianelli (Diamond Light Source)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Synchrotron Radiation , VOL 28

State: Published (Approved)
Published: September 2021

Open Access Open Access

Abstract: A method to simulate beam properties observed at the beamline sample-point in the presence of motion of optical components has been developed at Diamond Light Source. A series of stationary ray-tracing simulations are used to model the impact on the beam stability caused by dynamic motion of optical elements. Ray-tracing simulations using SHADOW3 in OASYS, completed over multiple iterations and stitched together, permit the modelling of a pseudo-dynamic beamline. As beamline detectors operating at higher frequencies become more common, beam stability is crucial. Synchrotron ring upgrades to low-emittance lattices require increased stability of beamlines in order to conserve beam brightness. By simulating the change in beam size and position, an estimate of the impact the motion of various components have on stability is possible. The results presented in this paper focus on modelling the physical vibration of optical elements. Multiple beam parameters can be analysed in succession without manual input. The simulation code is described and the initial results obtained are presented. This method can be applied during beamline design and operation for the identification of optical elements that may introduce large errors in the beam properties at the sample-point.

Journal Keywords: synchrotron; X-rays; OASYS; simulations; shadows

Subject Areas: Physics, Information and Communication Technology

Instruments: I24-Microfocus Macromolecular Crystallography

Added On: 14/08/2021 21:46


Discipline Tags:

Optics Physics Computing & software technologies Information & Communication Technologies

Technical Tags:

Diffraction Macromolecular Crystallography (MX)