| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
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|
|---|---|---|
| Page(s) | C6-543 - C6-546 | |
| DOI | https://doi.org/10.1051/jphyscol:19816159 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-543-C6-546
DOI: 10.1051/jphyscol:19816159
Institut Laue-Langevin, 156X, 38042 Grenoble Cedex, France
J. Phys. Colloques 42 (1981) C6-543-C6-546
DOI: 10.1051/jphyscol:19816159
IMPROVED ENERGY RESOLUTION WITH NEUTRON SPIN ECHO TRIPLE-AXIS SPECTROMETERS
C.M.E. ZeyenInstitut Laue-Langevin, 156X, 38042 Grenoble Cedex, France
Abstract
A spin echo option added to a classical Triple Axis spectrometer is capable of significantly improving the Energy Resolution. The design and construction of such a machine is described. In particular it is shown that intensity problems can well be overcome by using new focussing polarizer/analyser devices. The method has proven to be very successful for high resolution quasielastic scattering. Preliminary phonon experiments with the aim of lifetime determination have been performed.