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