New approach to the study of nuclear Bragg scattering of synchrotron radiation

Nuclear Bragg scattering of synchrotron radiation from isotopically enriched Fe2-57O3 has been observed at a signal-to-noise ratio of 100:1 without delayed-coincidence techniques. The use of a high-resolution premonochromator providing a 5-meV energy spread and 0.4-arcsec collimation allows for high...

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Veröffentlicht in:	Phys. Rev. Lett.; (United States) 1987-06, Vol.58 (25), p.2699-2701
Hauptverfasser:	FAIGEL, G, SIDDONS, D. P, HASTINGS, J. B, HAUSTEIN, P. E, GROVER, J. R, REMEIKA, J. P, COOPER, A. S
Format:	Artikel
Sprache:	eng
Schlagworte:	400101 - Activation, Nuclear Reaction, Radiometric & Radiochemical Procedures BRAGG REFLECTION BREMSSTRAHLUNG CHALCOGENIDES COHERENT SCATTERING COINCIDENCE METHODS Condensed matter: electronic structure, electrical, magnetic, and optical properties COUNTING TECHNIQUES DATA DIFFRACTION ELECTROMAGNETIC RADIATION ENERGY RANGE EVEN-ODD NUCLEI Exact sciences and technology EXPERIMENTAL DATA INFORMATION INHIBITION INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY INTERMEDIATE MASS NUCLEI IRON 57 IRON COMPOUNDS IRON ISOTOPES IRON OXIDES ISOTOPES ISOTOPIC EXCHANGE LIFETIME Magnetic resonances and relaxations in condensed matter, mössbauer effect MEV RANGE MEV RANGE 01-10 MONOCHROMATORS Mössbauer effect other γ-ray spectroscopy NUCLEI NUMERICAL DATA OXIDES OXYGEN COMPOUNDS Physics RADIATIONS REFLECTION RESOLUTION SCATTERING SIGNAL-TO-NOISE RATIO STABLE ISOTOPES SYNCHROTRON RADIATION TRANSITION ELEMENT COMPOUNDS X-RAY DIFFRACTION
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Zusammenfassung:	Nuclear Bragg scattering of synchrotron radiation from isotopically enriched Fe2-57O3 has been observed at a signal-to-noise ratio of 100:1 without delayed-coincidence techniques. The use of a high-resolution premonochromator providing a 5-meV energy spread and 0.4-arcsec collimation allows for high-resolution studies of dynamical diffraction effects. In particular, the observed intensity of the pure nuclear (777) reflection implies a dramatic decrease of the effective lifetime due to coherent scattering. (Author)
ISSN:	0031-9007 1079-7114
DOI:	10.1103/physrevlett.58.2699