New solid state lens for reflective neutron focusing
✍ Scribed by Roland Bartmann; Nicolas Behr; André Hilger; Thomas Krist
- Book ID
- 103859636
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 431 KB
- Volume
- 634
- Category
- Article
- ISSN
- 0168-9002
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We have developed a Fresnel-type focusing device for cold neutrons fabricated using single crystals of magnesium fluoride. This stacked-lens device using 50 elements (with 50 beam-bending interfaces) demonstrated a focal length of 5 m with a good transmission of 0.829 for 1:14 nm neutrons. The focus
## Abstract In this paper, we numerically analyze the polarization‐dependent focusing properties of a planar reflective lens formed by two parallel layers of nonuniform “gangbuster” surfaces (GSs) above a ground plane. Since these GSs consist of superdense arrays of thin finite‐length parallel meta