The long-wavelength neutron spin-echo spectrometer IN15 at the Institut Laue-Langevin
PHYSICA B-CONDENSED MATTER(1997)
摘要
A new ultra-high resolution neutron spin-echo spectrometer at the ILL (Grenoble) extends the time range for measurements of the intermediate scattering function S(Q,t) far beyond what has previously been possible. The spectrometer design is traditional, utilizing long neutron wavelengths (8-25 Angstrom) and large, homogeneous precession coils to reach Fourier times approaching the microsecond. The standard operational mode is currently functional, providing a Fourier time range of 0.03-180 ns, and a momentum transfer between 0.01 and 0.2 Angstrom(-1). The other two operational modes (neutron optical focusing and time of flight) are also discussed. (C) 1998 Elsevier Science B.V. All rights reserved.
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关键词
neutron spin echo,instrumentation
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