High contrast neutron radiography with optical devices in Kyoto University reactor

The high-contrast neutron radiography has been performed at a VCN guide (VCN) and a supermirror cold neutron guide (CN-3) in Kyoto University Reactor. The large absorption cross-section of very low-energy neutrons can show a slight change of sample which thermal neutrons can not show. The effectiven...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2004-08, Vol.529 (1), p.238-242
Main Authors: Kawabata, Y, Nakano, T, Hino, M, Sunohara, H, Matsushima, U, Takenaka, N
Format: Article
Language:English
Subjects:
High contrast
Neutron radiography
Supermirror
VCN
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Summary:The high-contrast neutron radiography has been performed at a VCN guide (VCN) and a supermirror cold neutron guide (CN-3) in Kyoto University Reactor. The large absorption cross-section of very low-energy neutrons can show a slight change of sample which thermal neutrons can not show. The effectiveness is shown in the fields of botany, agriculture and industrial researches. A new spectrum change option using high Q c supermirror ( m=4) is attached. It can change the upper limit of the energy of exposure neutrons by reflections, and gives a high flexibility of the experimental condition.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2004.04.212