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Phys. Rev. Lett. 58, 2699–2701 (1987)

[Issue 25 – 22 June 1987 ]

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

G. Faigel, D. P. Siddons, J. B. Hastings, P. E. Haustein, and J. R. Grover

Brookhaven National Laboratory, Upton, New York 11973

J. P. Remeika and A. S. Cooper

AT&T Bell Laboratories, Murray Hill, New Jersey 07974

Nuclear Bragg scattering of synchrotron radiation from isotopically enriched ⁵⁷Fe₂O₃ 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'' collimation allows for high-resolution studies of dynamical diffraction effects. In particular, the observed intensity of the pure nuclear (7,7,7) reflection implies a dramatic decrease of the effective lifetime due to coherent scattering.

©1987 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v58/p2699
DOI: 10.1103/PhysRevLett.58.2699
PACS: 76.80.+y, 07.85.+n, 42.80.Dk, 78.90.+t

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