GUIDING AND FOCUSING NEUTRON BEAMS USING CAPILLARY OPTICS

被引：66

作者：

CHEN, H

DOWNING, RG

MILDNER, DFR

GIBSON, WM

KUMAKHOV, MA

PONOMAREV, IY

GUBAREV, MV

机构：

[1] SUNY ALBANY,DEPT PHYS,CTR XRAY OPT,ALBANY,NY 12222

[2] MOSCOW ROENTGEN OPT SYST INST,WORLD LAB,MOSCOW 123182,USSR

[3] IV KURCHATOV ATOM ENERGY INST,MOSCOW 123182,USSR

来源：

NATURE | 1992年 / 357卷 / 6377期

关键词：

D O I：

10.1038/357391a0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A METHOD for focusing X-rays by means of internal reflection inside hollow glass capillaries 1-3 has also been shown to be capable of guiding a neutron beam 4, and now a neutron lens using this principle has been demonstrated 5,6. Here we study the properties of multiple capillary fibre bundles by measuring the transmission efficiency as a function of bending radius. The fibres used are shown to bend a neutron beam through 20-degrees in a distance of 130 mm, with a transmission of 50%. A simple device made of a few fibres is used to demonstrate the focusing of cold neutrons (wavelength 0.2-0.9 nm) down to a 1-mm2 spot size. These investigations will form the basis for the design of a neutron lens for use in materials research, or a beam bender capable of dividing and directing a neutron beam towards several experimental stations.

引用

页码：391 / 393

页数：3

共 12 条

[1] THE WIDEBAND X-RAY OPTICS WITH A LARGE ANGULAR APERTURE [J].

ARKADEV, VA ;

KOLOMIITSEV, AI ;

KUMAKHOV, MA ;

PONOMAREV, IY ;

KHODEYEV, IA ;

CHERTOV, YP ;

SHAKHPARONOV, IM .

USPEKHI FIZICHESKIKH NAUK, 1989, 157 (03) :529-537

[2]

ARKADIEV VA, 1989, USP FIZ NAUK, V32, P271

[3]

Kumakhov M. A., 1990, Soviet Technical Physics Letters, V16, P371

[4]

KUMAKHOV MA, 1990, PISMA ZH TEKH FIZ+, V16, P24

[5] A NEUTRON LENS [J].

KUMAKHOV, MA ;

SHAROV, VA .

NATURE, 1992, 357 (6377) :390-391

[6] MULTIPLE REFLECTION FROM SURFACE X-RAY OPTICS [J].

KUMAKHOV, MA ;

KOMAROV, FF .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1990, 191 (05) :289-350

[7] CHANNELING OF PHOTONS AND NEW X-RAY OPTICS [J].

KUMAKHOV, MA .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1990, 48 (1-4) :283-286

[8]

KUMAKHOV MA, 1991, IAE541214 IV KURCH I

[9] ACTIVATION-ANALYSIS OPPORTUNITIES USING COLD NEUTRON BEAMS [J].

LINDSTROM, RM ;

ZEISLER, R ;

ROSSBACH, M .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES, 1987, 112 (02) :321-330

[10]

LINDSTROM RM, 1988, MICROBEAM ANAL, P407

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