X-ray or gamma ray systems or devices – Specific application – Diffraction – reflection – or scattering analysis
Patent
1991-11-22
1992-12-22
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Diffraction, reflection, or scattering analysis
378145, G21K 106
Patent
active
051739305
ABSTRACT:
An x-ray monochromator, wherein a housing supports a plurality of mirrors forming a plurality of opposed mirror faces in parallel with each other and having thereon multilayer coatings, with each of said pairs of mirror faces being provided with identical coatings which are different from the coatings on the other pairs of mirror faces such that each pair of mirror faces has a peak x-ray reflection at a different wavelength regime. The housing is moveable to bring into a polychromatic x-ray beam that pair of mirror faces having the best x-ray reflection for the desired wavelength, with the mirrors being pivotable to move the mirror faces to that angle of incidence at which the peak reflectivity of the desired wavelength x-rays occurs.
REFERENCES:
patent: 4567605 (1986-01-01), Bartels
patent: 4958363 (1990-09-01), Nelson et al.
Broad, Jr. Robert L.
Church Craig E.
Manning John R.
Miller Guy M.
The United States of America as represented by the Administrator
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