Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
64 (1994), S. 2068-2070
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Multiple mirror reflection at small grazing angles from the smooth surfaces of the narrow channels of polycapillary fibers can be used to transport, bend, and focus thermal neutron beams. We report the results of the focusing of a polychromatic cold neutron beam using a compact lens of borosilicate fibers and with a focal distance of 57 mm. The intensity profile of the beam at the focus is approximately conical in shape with a full width at half-maximum of 0.49 mm, and with an average gain in intensity of about 20. These experimental results agree well with those obtained by computer simulation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.111709
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