Author： Yokoo T. Arai M. Kuwahara K. Nakamura M. Inamura Y. Sugiyama S. Yamamoto R. Kohgi M.
Publisher： Taylor & Francis Ltd
ISSN： 1044-8632
Source： Neutron News, Vol.15, Iss.4, 2004-01, pp. : 18-20
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Abstract
Neutron scattering experiments on highly absorbing materials like boron (10B), cadmium (113Cd), rare earths (Sm, Eu, Gd, Dy), etc., are extremely difficult to perform and have so far discouraged research activities on relevant compounds. However, recent topical phenomena such as charge ordering and orbital ordering have highlighted the importance of studying 4f-electron systems and raised a large demand for neutron scattering studies. Unfortunately, the preparation of isotope enriched (weakly absorbing) samples are costly, and very often the large amount of sample required for experiments can not be produced. An alternative way consists of reducing the absorption cross-section _a by utilizing epithermal neutrons of the order of several eV.
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