Experiments in solid state physics using resonant scattering of gamma-rays

R. Moreh

doi:10.1016/0029-554X(79)90510-X

Experiments in solid state physics using resonant scattering of gamma-rays

R. Moreh

Department of Physics

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Abstract

The temperature dependence of the nuclear resonance scattering cross section σ_s of some n-capture γ-lines was used for studying solid state properties of the scattering target. It is shown that by measuring the absolute value of σ_s from nuclei in the form of a chemical compound, it is possible to determine: (1) the instantaneous velocity of the scattering nucleus; (2) the zero-point kinetic energy of vibration of the atomic nucleus in the particular chemical compound or lattice. Further, a strong dependence of σ_s on molecular orientation in single crystals was observed and was employed for deducing the frequencies of some of the normal modes of molecular vibrations. The same phenomenon is useful in studying some surface physics effects related to the adsorption of ¹⁵N₂ gas on oriented graphite.

Original language	English
Pages (from-to)	45-52
Number of pages	8
Journal	Nuclear Instruments and Methods
Volume	166
Issue number	1
DOIs	https://doi.org/10.1016/0029-554X(79)90510-X
State	Published - 1 Nov 1979

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General Medicine

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10.1016/0029-554X(79)90510-X

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abstract = "The temperature dependence of the nuclear resonance scattering cross section σs of some n-capture γ-lines was used for studying solid state properties of the scattering target. It is shown that by measuring the absolute value of σs from nuclei in the form of a chemical compound, it is possible to determine: (1) the instantaneous velocity of the scattering nucleus; (2) the zero-point kinetic energy of vibration of the atomic nucleus in the particular chemical compound or lattice. Further, a strong dependence of σs on molecular orientation in single crystals was observed and was employed for deducing the frequencies of some of the normal modes of molecular vibrations. The same phenomenon is useful in studying some surface physics effects related to the adsorption of 15N2 gas on oriented graphite.",

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N2 - The temperature dependence of the nuclear resonance scattering cross section σs of some n-capture γ-lines was used for studying solid state properties of the scattering target. It is shown that by measuring the absolute value of σs from nuclei in the form of a chemical compound, it is possible to determine: (1) the instantaneous velocity of the scattering nucleus; (2) the zero-point kinetic energy of vibration of the atomic nucleus in the particular chemical compound or lattice. Further, a strong dependence of σs on molecular orientation in single crystals was observed and was employed for deducing the frequencies of some of the normal modes of molecular vibrations. The same phenomenon is useful in studying some surface physics effects related to the adsorption of 15N2 gas on oriented graphite.

AB - The temperature dependence of the nuclear resonance scattering cross section σs of some n-capture γ-lines was used for studying solid state properties of the scattering target. It is shown that by measuring the absolute value of σs from nuclei in the form of a chemical compound, it is possible to determine: (1) the instantaneous velocity of the scattering nucleus; (2) the zero-point kinetic energy of vibration of the atomic nucleus in the particular chemical compound or lattice. Further, a strong dependence of σs on molecular orientation in single crystals was observed and was employed for deducing the frequencies of some of the normal modes of molecular vibrations. The same phenomenon is useful in studying some surface physics effects related to the adsorption of 15N2 gas on oriented graphite.

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Experiments in solid state physics using resonant scattering of gamma-rays

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