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Fabrication and testing of high-performance all-metal neutron guides and axisymmetric mirrors by electrochemical replication
Published online by Cambridge University Press: 27 February 2020
Abstract
Neutron scattering is one of the most useful methods of studying the structure of matter, with applications to biomedical, structural, magnetic and energy-related materials. Neutron-scattering instruments are installed around research reactors or accelerator-based neutron sources, and neutron guides are critical components of these facilities. They are neutron-transport optical devices consisting of state-of-the-art mirrors often tens of meters long. Here we demonstrate a novel fabrication method of all-metallic neutron guides and axisymmetric mirrors by electroplating from precision mandrels. The process allows for the fabrication of single-piece all-metal guides of prismatic and axisymmetric shapes. We also demonstrate supermirror guides and axisymmetric focusing supermirrors produced with the same technology. We present the fabrication and tests of the multilayer-coated replicated guides and optic and show that the mandrel is reproduced with high fidelity and reliability. Such supermirror optics will provide game-changing improvements in neutron techniques.
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- Articles
- Information
- MRS Advances , Volume 5 , Issue 29-30: Materials Theory, Computation and Characterization , 2020 , pp. 1513 - 1528
- Copyright
- Copyright © Materials Research Society 2020
Footnotes
*
Currently at Stanford University, Stanford, CA, U.S.A.
†
Currently at The Paul Scherrer Institute, Villigen, Switzerland
References
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