Argonne National Laboratory

Advanced Photon Source
Sector 9

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ID White Beam Absorber

White Beam Absorber The white beam absorber blocks white beam radiation while allowing monochromatic radiation to pass.

The white beam absorber assembly is comprised of a water-cooled block of tungsten alloy with separate white beam and monochromatic beam apertures and a successive monochromatic beam collimator and bremsstrahlungs shield. White beam enters the lower aperture and is distributed and absorbed over its bottom side, inclined by 2 degrees with respect to the horizontal. Scattered white beam radiation exiting through the narrow downstream end is absorbed in the bremsstrahlungs shield. Monochromatic beam, offset vertically from the white beam by 25.4 mm can pass freely through the monochromatic beam aperture and the collimator pipe.


Assembly Diagram | Beamline Location


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