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Fabrication and experimental evaluation of microstructured 6Li silicate fiber arrays for high spatial resolution neutron imaging

Fabrication and experimental evaluation of microstructured 6Li silicate fiber arrays for high spatial resolution neutron imaging
Fabrication and experimental evaluation of microstructured 6Li silicate fiber arrays for high spatial resolution neutron imaging
This work presents the fabrication and experimental evaluation of instrumentation designed to enable higher spatial resolution neutron radiography for those performing research at neutron scattering facilities. Herein, we describe a proof-of-concept array of microstructured silicate fibers with  6Li doped cores that shows progress towards a design for μm resolution neutron radiography. The multicore fiber was fabricated by drawing stacked unit elements of Guardian Glass (Nucsafe Inc., Oak Ridge, TN, USA), a  6Li scintillating core glass, and a silicate cladding glass. These structured fibers function as an array of sub-10-μm waveguides for scintillation light. Measurements have shown a significantly increased integrated charge distribution in response to neutrons, and the spatial resolution of the radiographs is described by edge response and line spread functions of 48±4μm
and 59±8μm, respectively.
0168-9002
Moore, Michael E.
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Lousteau, Joris
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Trtik, Pavel
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Bilheux, Hassina Z.
5ef9f11e-fc86-4d07-a7be-e8d86ba25e1b
Pugliese, Diego
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Milanese, Daniel
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Simone, Angela T.
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Brambilla, Gilberto
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Hayward, Jason P.
fc3fcdb4-0a04-472a-823e-e629b564612d
Moore, Michael E.
68bda230-1f96-4dae-9b3a-acb2e608a37e
Lousteau, Joris
cab1e88f-197b-470a-90cb-a37c3141f66f
Trtik, Pavel
4383be9d-8244-4f44-9128-29fdd08da258
Bilheux, Hassina Z.
5ef9f11e-fc86-4d07-a7be-e8d86ba25e1b
Pugliese, Diego
b08afd00-ac28-4c6b-a0cd-4a14ecb537f2
Milanese, Daniel
f2edade3-2b65-43b9-85f2-970a303a2bec
Simone, Angela T.
149b19fc-7151-49f5-8b4e-36e88141ed57
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Hayward, Jason P.
fc3fcdb4-0a04-472a-823e-e629b564612d

Moore, Michael E., Lousteau, Joris, Trtik, Pavel, Bilheux, Hassina Z., Pugliese, Diego, Milanese, Daniel, Simone, Angela T., Brambilla, Gilberto and Hayward, Jason P. (2018) Fabrication and experimental evaluation of microstructured 6Li silicate fiber arrays for high spatial resolution neutron imaging. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. (doi:10.1016/j.nima.2018.12.010).

Record type: Article

Abstract

This work presents the fabrication and experimental evaluation of instrumentation designed to enable higher spatial resolution neutron radiography for those performing research at neutron scattering facilities. Herein, we describe a proof-of-concept array of microstructured silicate fibers with  6Li doped cores that shows progress towards a design for μm resolution neutron radiography. The multicore fiber was fabricated by drawing stacked unit elements of Guardian Glass (Nucsafe Inc., Oak Ridge, TN, USA), a  6Li scintillating core glass, and a silicate cladding glass. These structured fibers function as an array of sub-10-μm waveguides for scintillation light. Measurements have shown a significantly increased integrated charge distribution in response to neutrons, and the spatial resolution of the radiographs is described by edge response and line spread functions of 48±4μm
and 59±8μm, respectively.

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1-s2.0-S0168900218318084-main - Accepted Manuscript
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Accepted/In Press date: 5 December 2018
e-pub ahead of print date: 17 December 2018

Identifiers

Local EPrints ID: 427024
URI: http://eprints.soton.ac.uk/id/eprint/427024
ISSN: 0168-9002
PURE UUID: dc94e251-d572-4590-8b1f-3f7f8085a16f
ORCID for Gilberto Brambilla: ORCID iD orcid.org/0000-0002-5730-0499

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Date deposited: 20 Dec 2018 17:30
Last modified: 27 Apr 2022 04:47

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Contributors

Author: Michael E. Moore
Author: Joris Lousteau
Author: Pavel Trtik
Author: Hassina Z. Bilheux
Author: Diego Pugliese
Author: Daniel Milanese
Author: Angela T. Simone
Author: Jason P. Hayward

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