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A dynamically adjustable wavelength-sensitive neutron filter

Vasilev, N. D. and Charlton, T. R. and Kirichek, O. and Kinane, C. J. and Schooneveld, E. M. and Langridge, S. and Kockelmann, W. A. and McClintock, P. V. E. (2012) A dynamically adjustable wavelength-sensitive neutron filter. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 677. pp. 1-3. ISSN 0168-9002

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Abstract

The prototype of a wavelength-sensitive neutron filter has been realized and tested successfully for the first time. The filter exploits the neutron wavelength dependence of the transparency of He-3 gas. The analysis of test results gives high wavelength resolution Delta lambda/lambda similar or equal to 0.5% over the broad wavelength range 0.2-5.2 angstrom. We propose an idea to expand the filter range in the short wavelength direction by use of a cryogenic environment, and also consider the use of media using other than He-3 gas. The proposed filter might be used in advanced reflectometers and SANS2D neutron scattering instruments. (C) 2012 Elsevier B.V. All rights reserved.

Item Type: Article
Journal or Publication Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Uncontrolled Keywords: Neutron filter ; Wavelength-sensitive neutron filter
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 54938
Deposited By: ep_importer_pure
Deposited On: 07 Jun 2012 14:54
Refereed?: Yes
Published?: Published
Last Modified: 17 Sep 2013 08:32
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/54938

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