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Neutron Scattering from Forced and Relaxing Systems

机译:强迫和放松系统的中子散射

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Scattering from a forced harmonic oscillator is considered. A number of interesting features occur in the inelastic spectrum: enhancement of high energy transfers and oscillations in the scattering intensity in any particular channel as resonance is approached, both of which may be practically useful. The behaviour on resonance is derived and is qualitatively different. We discuss the relevance to general systems, and show that neutron scattering directly measures the analogue of the energy levels of the forced system, its quasi energy spectrum. Scattering from an oscillator out of equilibrium with its environment is also considered. We find additional structure in the inelastic spectrum from which the relaxation time can be deduced. (Atomindex citation 15:004862)

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