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 supermirror coatings with large m-values and excellent reflectivity. The result is a robust and efficient solution for demanding neutron optics applications.

Technical highlights

  • Exceptional surface quality
    Achieved roughness of approximately 1 Å RMS, comparable to super-polished glass, enables high reflectivity for neutron supermirror coatings
  • Scalable and reproducible fabrication
    Suitable for large-scale production with consistent quality
  • Radiation stability
    Proven resistance to degradation up to 9 × 10¹⁹ n/cm²
  • Mechanical robustness
    Supports extended machining options, including welding
  • Functional versatility
    Copper substrates offer highly efficient neutron shielding
NG-A-D in-pile @ NIST
Multi-channel guide assembly
H5 in-pile @ ILL
3-unit guide assembly
SR5 in-pile & shutter @ FRM-II
Aluminum guide units
Bridge beam guides @ ESS
Copper guide elements
NBOA neutron guides @ ESS
Copper guide units
ESTIA @ ESS
Aluminum guide units with elliptic profile