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An improved polarisation analyser for the I16 beamline at Diamond

DOI: 10.18429/JACoW-MEDSI2018-THPH05 DOI Help

Authors: M. H. Burt (Diamond Light Source) , S. P. Collins (Diamond Light Source) , S. Green (Diamond Light Source) , I. Horswell (Diamond Light Source) , J. Li (Diamond Light Source) , G. Nisbet (Diamond Light Source) , Robert Pocock (Diamond Light Source) , Jonathan Spiers (Diamond Light Source) , K. G. Wilkinson (Diamond Light Source)
Co-authored by industrial partner: No

Type: Conference Paper
Conference: Mechanical Eng. Design of Synchrotron Radiation Equipment and Instrumentation MEDSI2018
Peer Reviewed: No

State: Published (Approved)
Published: December 2018

Open Access Open Access

Abstract: The project to upgrade the I16 polarisation analyser was necessary to increase its functionality and to introduce a more robust construction. The requirement that the analyser was to be mounted on a diffractometer meant the construction needed to be as lightweight and as compact as possible. This provided opportunities to explore new collaborative ways of working with both in-house and external suppliers. The paper describes the approach taken to develop lightweight aluminium vacuum chambers working with a company specialising in additive layer manufacturing. In addition, the design of lightweight and compact slit assemblies are detailed; these were developed in collaboration with a supplier of driven linear stages. A novel requirement for the analyser is to have a detector mounted on a rotation axis in vacuum. The results of working with the in-house detector group to develop a design to with all the necessary thermal and electrical connections are described. The paper also describes further use of additive layer manufacturing to produce prototypes that allows the design of a cable management system to be optimised where previously using 3d CAD models had proved unsatisfactory.

Journal Keywords: detector; vacuum; polarization; scattering; factory

Subject Areas: Technique Development

Instruments: I16-Materials and Magnetism