| Numéro |
J. Phys. Colloques
Volume 41, Numéro C1, Janvier 1980
International Conference on Mössbauer Spectroscopy
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|---|---|---|
| Page(s) | C1-469 - C1-469 | |
| DOI | https://doi.org/10.1051/jphyscol:19801184 | |
International Conference on Mössbauer Spectroscopy
J. Phys. Colloques 41 (1980) C1-469-C1-469
DOI: 10.1051/jphyscol:19801184
1 Physik Department E 15 der Technischen Universität München, James Franck Straβe, D-8046 Garching, Fed. Rep. Germany
2 I.V. Kurchatov-Institute of Atomic Energy, Moscow, USSR
J. Phys. Colloques 41 (1980) C1-469-C1-469
DOI: 10.1051/jphyscol:19801184
ENHANCED NUCLEAR RESONANCE SCATTERING IN DYNAMICAL DIFFRACTION OF GAMMA-RAYS
U. Van Bürck1, G.V. Smirnov2, R.L. Mössbauer1, H.J. Maurus1 et N.A. Semioschkina21 Physik Department E 15 der Technischen Universität München, James Franck Straβe, D-8046 Garching, Fed. Rep. Germany
2 I.V. Kurchatov-Institute of Atomic Energy, Moscow, USSR
Abstract
The angular and energy dependence of the dynamical diffraction of gamma-rays in Bragg geometry was studied experimentally. Mössbauer spectra of gamma-quanta diffracted by a pure nuclear Bragg reflecion of a nearly perfect 57FeBO3 single crystal were measured with high angular resolution. In the spectrum taken at exact Bragg position very broad hyperfine resonance peaks were observed. In the spectra just above and below the Bragg angle the reflection peaks were shifted to energy positions above and below resonance. The results are interpreted by means of the dynamical theory and compared with computer calculations.