Franks, A; Jackson, K; Yacoot, A (2000) A parabolic mirror x-ray collimator. Meas. Sci. Technol., 11. pp. 484-488.

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Abstract

A robust and stable x-ray collimator has been developed to produce a parrallel beam of x-rays by total external reflection from a parabolic mirror. The width of the gold-coated silica mirror varies along its length, which allows it to be bent from a plane surface into a parabolic form by application of unequal bending forces at its ends. A family of parabolas of near constant focal lengthcan be formed by changing the screw-applied bending force, thus allowing the collomator to cater for a range of wavelengths by the turning od the screw.

Item Type:	Article
Keywords:	x-rays, total external reflection, parabolic mirror, bending mechanism
Subjects:	Engineering Measurements Engineering Measurements > Dimensional
Last Modified:	02 Feb 2018 13:17
URI:	https://eprintspublications.npl.co.uk/id/eprint/1540