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Title:
A neutron lens
Authors:
Kumakhov, M. A.; Sharov, V. A.
Affiliation:
AA(Institute for Roentgen Optical Systems; Institute of Atomic Energy, Moscow, Russia), AB(Institute for Roentgen Optical Systems; Institute of Atomic Energy, Moscow, Russia)
Publication:
Nature (ISSN 0028-0836), vol. 357, no. 6377, June 4, 1992, p. 390, 391. (Nature Homepage)
Publication Date:
06/1992
Category:
Optics
Origin:
STI
NASA/STI Keywords:
Capillary Tubes, Fiber Optics, Lenses, Neutron Beams, Optical Reflection, Focusing, Glass, Grazing Incidence, Photolithography, Spatial Resolution
DOI:
10.1038/357390a0
Bibliographic Code:
1992Natur.357..390K

Abstract

Smooth hollow glass capillaries can be used to guide neutrons by multiple reflection at grazing angles along the inner walls. It is shown here that a concentric arrangement of bent capillaries makes it possible to focus and increase the flux density of a neutron beam. This phenomenon will have applications in areas such as prompt-gamma activation analysis and neutron depth profiling.
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Database: Astronomy
Physics
arXiv e-prints