Inelastic nuclear resonant scattering with sub-meV energy resolution

Journal Article · Wed Oct 01 00:00:00 EDT 1997 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.120448· OSTI ID:632525

Toellner, T S; Hu, M Y; Sturhahn, W; Quast, K; Alp, E E ^[1]

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1. Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

With an undulator-based synchrotron source and a tunable x-ray monochromator, we produce an x-ray beam with a flux of 4{times}10{sup 8}thinspphotons/s in an energy bandwidth of 920{plus_minus}110thinsp{mu}eV ({Delta}E/E{approx}6.2{times}10{sup {minus}8}) at a photon energy of 14.4 keV. The tunability of the monochromator allows for a measurement of lattice excitations in {alpha}-Fe using the technique of inelastic nuclear resonant scattering from {sup 57}Fe. The phonon density-of-states are extracted from the measurement and compared to the calculated phonon density-of-states derived from neutron-scattering measurements. {copyright} {ital 1997 American Institute of Physics.}

• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 632525
• Journal Information: Applied Physics Letters, Vol. 71, Issue 15; Other Information: PBD: Oct 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
X-RAY SOURCES
FLUX DENSITY
PHONONS
INELASTIC SCATTERING
SYNCHROTRON RADIATION
ENERGY RESOLUTION
TUNING
IRON
ENERGY-LEVEL DENSITY
MONOCHROMATORS