Swiss Quality for Excellence in Neutron Science

SwissNeutronics is the global leader in advanced neutron optics—critical components for the scientific instrumentation of modern neutron research facilities. Our exceptional supermirrors, combined with innovative designs and high-precision machining and assembly, enable the creation of world-class neutron optical devices.

Our product portfolio includes state-of-the-art optical solutions for the transport, focusing, and polarization of neutron beams, providing high-performance beamlines for experiments in science and industry. Beyond manufacturing, SwissNeutronics offers deep expertise in neutronic and engineering design for neutron optics and complete beamlines, including their installation and integration.

Supermirror

Precise stacking of atoms

SwissNeutronics specializes in the preparation of neutron optical coatings using advanced DC magnetron sputtering techniques. This highly refined deposition process enables the creation of multilayer structures with exceptionally smooth interfaces, ensuring maximum neutron reflectivity. SwissNeutronics manufactures both non-depolarizing and polarizing supermirrors, achieving high m-values and outstanding performance in terms of reflectivity and neutron spin polarization.

Supermirror reflectivities

Neutron Guides

From individual components to turnkey systems

SwissNeutronics is the world’s leading supplier of high-performance neutron guides, an essential component for scientific instrumentation at modern neutron research facilities. Our key innovations include the super-polishing of large-area substrates—such as glass, silicon, and metals—and their coating with thin-film neutron supermirrors, consisting of multilayer stacks of up to 10,000 layers. By combining these exceptional supermirrors with advanced designs, precision machining, and meticulous assembly, SwissNeutronics delivers neutron guides of unparalleled quality and performance.

Glass Guides

From standard to the “finest arts” – SwissNeutronics manufactures neutron guides in a wide range of dimensions, materials, and complexities—from standard designs to highly customized solutions. Combining high-performance supermirror coatings with exceptional mechanical precision, these guides ensure excellent neutron transmission…

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Metallic Guides

Substrates for demanding neutron guides – Metallic guides are essential components in advanced neutron guide systems. SwissNeutronics has developed a proprietary super-polishing process that significantly enhances the surface quality of metallic substrates. This refinement enables the application of high-performance neutron…

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Guide Systems

SwissNeutronics offers fully integrated, turnkey solutions for complete neutron guide systems tailored to both reactor-based neutron sources and spallation sources. These systems are designed to meet the highest standards of performance, reliability, and precision. From initial concept to final commissioning,…

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Polarizing Devices

Add a degree of freedom – neutron beam polarization & polarization analysis

SwissNeutronics provides a wide range of devices for neutron beam polarization and polarization analysis, including V-cavities, benders, WAPAs and Heusler monochromators. RF spin flippers enable precise selection of the desired spin state across a broad wavelength range. Combining V-cavities with an RF flipper creates a turnkey spin-selector solution. All devices deliver consistent performance and are completely maintenance-free.

Heusler Monochromators

SwissNeutronics’ Heusler monochromator system features individually controlled magnetic yokes for uniform fields over 1.4 kG, achieving neutron polarization above 94%. It offers high angular precision, motorized alignment via goniometer stages, and modular design with integrated shielding and guide fields—ideal for…

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Polarizing Cavities

Polarizing cavities use spin-dependent neutron transmission through supermirrors on silicon wafers. One spin state is transmitted, the other reflected. V-shaped wafer arrangements shorten the device length. Multiple parallel channels cover wider beams, while serial V-configurations enhance polarization efficiency—ideal for experiments…

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Wide Angle Polarization Analyzer

Wide Angle Polarization Analyzers (WAPAs) analyze neutron polarization using either reflection (rWAPA) or transmission (tWAPA) geometries. rWAPAs use Fe/Si-coated lamellas; tWAPAs employ V-shaped cavities. Covering wide angular ranges, WAPAs offer stable, maintenance-free operation and high efficiency, making them ideal for…

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Polarizing Bender

Polarizing benders polarize neutron beams across a wide wavelength range. Macro benders use curved, supermirror-coated guides; micro benders are compact, using bent thin boron glass lamellas. Solid-state benders with Si wafers offer high efficiency in transmission geometry, while reflection geometry…

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Spin-Selectors

SwissNeutronics provides advanced spin-selectors for neutron polarization, featuring RF spin flippers with no beam obstruction and polarizing cavities achieving ~99% polarization and ~35% transmission. Cavity configurations include serial and parallel V setups, with thin Si wafers and simulation tools (McStas)…

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Monochromators

As precise as Swiss watches

SwissNeutronics designs and manufactures high-precision mechanics for 1d and 2d focusing monochromators with adjustable curvature. Our advanced engineering ensures accurate focusing through precisely machined components. To minimize background, we reduce material exposed to the neutron beam. A standardized base design guarantees reliable, cost-efficient production while allowing extensive customization to meet individual requirements. Additionally, SwissNeutronics offers crystal characterization and alignment services using neutrons, ensuring optimal performance for your applications.

1d Arrays

The monochromator achieves one-dimensional focusing by tilting crystal rows or columns via a motorized cam shaft, ensuring milliradian precision. SwissNeutronics’ modular design supports high accuracy, beam compatibility, and customizable crystal holders. Integrated motion control and goniometer compatibility enhance alignment flexibility…

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2d Arrays

Two-dimensional focusing arrays enable precise beam shaping by tilting each crystal in both vertical and horizontal directions. With high angular accuracy, low-background mounting, and integrated motion control, the system ensures optimal Bragg alignment and beam intensity. SwissNeutronics’ customizable platform suits…

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Heusler Monochromators

SwissNeutronics’ Heusler monochromator system features individually controlled magnetic yokes for uniform fields over 1.4 kG, achieving neutron polarization above 94%. It offers high angular precision, motorized alignment via goniometer stages, and modular design with integrated shielding and guide fields—ideal for…

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2d Si Monochromators

SwissNeutronics’ silicon monochromators offer precise wavelength selection and high mechanical stability. Configurable for various Bragg reflections, they feature dual-actuation systems for synchronized crystal alignment and curvature. Integrated motion control ensures reproducible positioning, while advanced mounting techniques and beam-compatible design deliver…

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Monochromator Systems

SwissNeutronics delivers fully integrated monochromator systems designed for flexible and efficient operation in neutron scattering experiments. Multiple monochromators are housed within custom-engineered exchange mechanisms, allowing seamless selection and positioning based on specific experimental requirements. These systems are equipped with comprehensive…

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Focusing Optics

How to squeeze a neutron beam

When working with novel materials, sample sizes are often extremely small, and applying extreme conditions—such as high pressure or strong magnetic fields—is limited to tiny volumes. For these demanding experiments, SwissNeutronics delivers cutting-edge focusing neutron optics with unmatched precision. Combined with high‑m supermirrors, these optics compress neutron beams from an initially large cross-section down to the tiny dimensions required for the sample. Innovative concepts such as Nested Mirror Optics enable true imaging by directing only the “good” neutrons from a highly brilliant source onto the small sample volume. This approach delivers exceptional signal-to-noise ratios, ensuring superior data quality for demanding experiments.

Nested Mirror Optics (NMO)

Nested Mirror Optics (NMO) use layered, curved mirrors with supermirror coatings to focus neutron beams into high-intensity spots. Their design expands beam collection and ensures uniform phase space, ideal for imaging and spectroscopy. SwissNeutronics customizes NMOs with precise curvature, vacuum…

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Flight Tubes

SwissNeutronics’ flight tubes compress neutron beams to match sample size, enhancing flux and reducing background scattering. They feature customizable geometries, supermirror coatings (up to m = 8), and support 1D or 2D focusing. Designed for high vacuum, they integrate seamlessly…

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Variable Optics

The IN16B spectrometer at ILL has been upgraded with a new variable focusing guide, designed to enhance neutron flux at the sample position and improve energy resolution in backscattering spectroscopy. The horizontal variable focusing guide directs neutrons onto the Phase…

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Other Devices

Beyond supermirror optics

SwissNeutronics provides a range of devices for neutron scattering instruments. Each device is built on a standardized design platform, ensuring reliability and cost efficiency, while offering extensive flexibility for customization to meet individual specifications. All components are designed for seamless integration with other SwissNeutronics products, enabling fully optimized instrument configurations.

Collimators

SwissNeutronics is a global leader in neutron optics, producing the finest Soller and radial collimators. Their designs offer exceptional precision, high transmission, and customizable configurations for advanced neutron beam applications. With cutting-edge materials and engineering, SwissNeutronics sets standards in neutron…

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Slits

SwissNeutronics specializes in producing high-precision neutron beam defining apertures, tailored to individual specifications. These custom apertures ensure optimal beam shaping and alignment for advanced applications in neutron scattering. With expert engineering and material selection, SwissNeutronics delivers reliable, high-performance solutions for…

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