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Polycapillary Collimating Optics – X-Ray

PC CollimatingPolycapillary 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.

Collimating Diagram

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??