Nuclear Resonance Excitation Using a Diffraction Monochromator
Open Access
- 1 December 1962
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 128 (5), 2334-2339
- https://doi.org/10.1103/physrev.128.2334
Abstract
Nuclear resonance scattering from the first excited states in and has been studied with the bent-diffraction-crystal monochromator. The experiment was performed by observing the scattered radiation from nuclei exposed to nearly monoenergetic x rays selected by crystal diffraction from the bremsstrahlung spectrum of an x-ray tube. Gamma rays scattered at 135° from samples of lithium fluoride and manganese placed in the diffracted beam were observed as a function of the incident photon wavelength. With the lithium fluoride sample three measurements were made under different experimental conditions. In each case pronounced resonance peaks 10 to 15% above background were observed. A least-squares analysis of the data gives 109.894±0.005 keV for the energy position of the first excited level in . From the observed yield the width of this level was deduced to be (5.1±0.7)× eV. Measurements with a scattering sample gave 125.95±0.01 keV for the position of the first excited level and (1.1±0.3)× eV for the resonance width.
Keywords
This publication has 15 references indexed in Scilit:
- A germanium bent-crystal monochromator for nuclear spectroscopyNuclear Instruments and Methods, 1962
- Resonant Scattering of Gamma Rays from Nuclear Levels with a Linear AcceleratorPhysical Review B, 1962
- Nuclear resonance scattering of bremsstrahlungNuclear Physics, 1960
- Resonance Absorption of Nuclear Gamma Rays and the Dynamics of Atomic MotionsPhysical Review B, 1960
- Resonant Absorption of Gamma Radiation from theReactionPhysical Review B, 1958
- Lifetimes of the 6.91- and 7.12-Mev Excited States ofO16Physical Review B, 1957
- Study of Nuclear Structure by Electromagnetic Excitation with Accelerated IonsReviews of Modern Physics, 1956
- A High Resolving Power, Curved-Crystal Focusing Spectrometer for Short Wave-Length X-Rays and Gamma-RaysReview of Scientific Instruments, 1947
- Resonance Fluorescence of NucleiPhysical Review B, 1946
- Capture of Neutrons by Atoms in a CrystalPhysical Review B, 1939