Title of article
Wavelength-shifting-fibre-based neutron image detector with a fibre-optic taper to increase the spatial resolution
Author/Authors
Nakamura، نويسنده , , T. and Katagiri، نويسنده , , M. H. Toh، نويسنده , , K. and Sakasai، نويسنده , , K. and Ebine، نويسنده , , M. and Birumachi، نويسنده , , A. and Soyama، نويسنده , , K.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
3
From page
158
To page
160
Abstract
The effective pixel size of a two-dimensional wavelength-shifting-fibre (WLS-fibre)-based neutron image detector was improved from 0.5 to 0.16 mm by including a fibre-optic taper (FOT) between the scintillator screen and the WLS fibre. The WLS-fibre-based detector consisted of a thin ZnS/6LiF screen, a FOT and WLS ribbons crossed in the x and y directions. The demonstrator detector had 16 fibre channels in each direction, and the light signals in each fibre were read out individually. The FOT was constructed from fine glass fibres with a taper ratio of 3.1 and served as an image magnifier. The prototype detector equipped with the FOT exhibited a spatial resolution of 0.3 mm, compared to the spatial resolution of 0.8 mm of the original detector without the FOT.
Keywords
neutron detector , Wavelength-shifting-fibre , Fibre-optic taper , High spatial resolution
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
2009
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2211204
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