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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:
- 2
- Pages contribution:
- 530
- Language:
- en
- Fulltext / DOI:
- doi:10.1016/j.nima.2009.08.047
- Print-ISSN:
- 01689002
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