Multiple wavelength X-ray monochromators

Patent · Tue Nov 17 00:00:00 EST 1992

OSTI ID:868546

Steinmeyer, Peter A ^[1]

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1. Arvada, CO

An improved apparatus and method is provided for separating input x-ray radiation containing first and second x-ray wavelengths into spatially separate first and second output radiation which contain the first and second x-ray wavelengths, respectively. The apparatus includes a crystalline diffractor which includes a first set of parallel crystal planes, where each of the planes is spaced a predetermined first distance from one another. The crystalline diffractor also includes a second set of parallel crystal planes inclined at an angle with respect to the first set of crystal planes where each of the planes of the second set of parallel crystal planes is spaced a predetermined second distance from one another. In one embodiment, the crystalline diffractor is comprised of a single crystal. In a second embodiment, the crystalline diffractor is comprised of a stack of two crystals. In a third embodiment, the crystalline diffractor includes a single crystal that is bent for focussing the separate first and second output x-ray radiation wavelengths into separate focal points.

• Research Organization: Rockwell International Corp., Canoga Park, CA (United States)
• DOE Contract Number: AC04-76DP03533
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5164975
• Application Number: 07/714,805
• OSTI ID: 868546
• Country of Publication: United States
• Language: English

Related Subjects

multiple
wavelength
x-ray
monochromators
improved
apparatus
method
provided
separating
input
radiation
containing
wavelengths
spatially
separate
output
contain
respectively
crystalline
diffractor
set
parallel
crystal
planes
spaced
predetermined
distance
inclined
angle
respect
embodiment
comprised
single
stack
crystals
third
bent
focussing
focal
output radiation
crystal plane
crystal planes
third embodiment
single crystal
improved apparatus
x-ray radiation
radiation wavelengths
x-ray wavelengths
parallel crystal
ray radiation
multiple wavelength
ray wavelength
spatially separate
radiation containing
radiation wavelength
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