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Document type:
Zeitschriftenaufsatz 
Author(s):
Schneider, M.; Stahn, J.; B̈oni, P. 
Title:
Focusing of Cold Neutrons: {{Performance}} of a Laterally Graded and Parabolically Bent Multilayer 
Abstract:
We have designed and built a parabolically shaped reflector with a Ni/Ti-multilayer coating, graded along the length of the device. The bilayer thickness follows the varying angle of incidence to match the Bragg condition for a beam parallel to the axis of the parabola. As measurements show, this concept leads to a higher reflectivity for monochromatic neutrons compared to a conventional supermirror coating. With a reflectivity R496% we measured a gain of 5 when focusing a 8.6 mm wide beam of 0:...    »
 
Journal title:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 
Year:
2009 
Journal volume:
610 
Month:
nov 
Journal issue:
Pages contribution:
530 
Language:
en 
Print-ISSN:
01689002