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 optimal energy resolution and consistent beam performance.
SwissNeutronics offers high-precision silicon monochromators tailored for neutron optics applications, combining advanced crystal technology with mechanical stability. These monochromators are configurable for various Bragg reflections (e.g., Si(111), Si(220), Si(311)), enabling accurate wavelength selection. The silicon crystals are precisely mounted and aligned to ensure optimal energy resolution and beam intensity.
The mechanical system is designed for highly stable and reproducible positioning of the silicon wafer stacks. Each stack can be bent with high precision using a dedicated motorized actuator. In addition, another motor drives a finely machined cam shaft, which enables synchronized tilting of all wafer stacks through a single coordinated motion. This dual-actuation mechanism ensures consistent curvature and alignment across the entire monochromator assembly, resulting in uniform performance and optimal beam characteristics.
Technical highlights
- High Crystal Quality
Float-zone grown Si crystals with precise orientation
– ±0.5° to surface of Si blade
– <0.1° variation across ensemble of Si blades
– Available in various orientations: Si(111), Si(220), Si(311), etc. - High Curvature Precision
– Absolute accuracy of bending radius: <1%
– Repeatability: < 0.1% - High Angular Precision
– Absolute accuracy: < 0.05° (RMS)
– Repeatability: < ±0.02° - Advanced Mechanical Integration
– Fully motorized: stepper motor, encoder/resolver (for tilting of Si stacks and goniometer), home and limit switches
– Integrated goniometer stage for precise alignment - Additional Functional Features
– Neutron shielding elements
– Modular design for easy customization and maintenance
CMRR
2d focusing Si monochromator
