Neutron Double Converging

Throughout the years, many types of Neutron Double Converging Collimators have been produced by JJ X-Ray. As with our Radial Collimators, they include intermediate collimation systems over larger angular ranges and finer collimation systems over smaller angular ranges. Se also examples in our collimator catalogue.

Especially with our larger designs, limiting the total system weight has been at the center of our attention. 

For further details, please click on the design parameters.

Key Facts Neutron Double Converging Collimator
Angular range               Up to 45 degrees horizontally and 60 degrees vertically
Aperture size Customized
Angle between foils From 0.1 degrees to several degrees
Foils 80-125 µm thick Gadolinium Oxide or Boron-10 coated PETP or Kapton Foil
Spacers Aluminum with thickness determined by collimation requirements
Covers Open apertures are delivered with thin protective aluminum covers
Common options Coatings can be various alternative materials.
Frame may be coated with absorbing material.
Vacuum compatible parts and coatings can be furnished.
Extra dense foil coatings may be furnished for lower resolution collimators to limit "cross-talk“.
Non-magnetic materials.
Fixtures and lifting positions.