NEUTRON FOCUSING LENS USING POLYCAPILLARY FIBERS

被引：12

作者：

CHEN, H ^{[1
]}

MILDNER, DFR ^{[1
]}

XIAO, QF ^{[1
]}

机构：

[1] X-RAY OPT SYST INC,ALBANY,NY 12222

来源：

APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 16期

关键词：

D O I：

10.1063/1.111709

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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.

引用

页码：2068 / 2070

页数：3

共 17 条

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