Polycapillary Collimating Optics – X-Ray
Polycapillary collimating optics convert a highly divergent beam of X-rays into a quasi-parallel beam of low divergence. These optics are mainly used in X-ray diffraction (XRD) and wavelength dispersive spectrometry (WDS) applications.

Characteristics of Polycapillary Collimating Optics:
| Type |
Parallel Beam, Polychromatic |
| Useful X-ray Energy Range |
Typically 0.1 – 30 keV |
| Transmission Efficiency |
Up to 40% (depending on optic design and X-ray energy) |
| Collection Solid Angle |
Up to 20 degrees |
| Beam size |
Typically 0.5 – 20 mm |
| Output Divergence |
1 – 4 mrad (Depending on X-ray energy)Typically 2 mrad @ Mo K??, 3.5 mrad @ Cu K?? |