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In physics, quasielastic scattering designates a limiting case of inelastic scattering, characterized by energy transfers being small compared to the incident energy of the scattered particles. The term was originally coined in nuclear physics.
In a more strict meaning, it denotes scattering processes where dynamics in the sample (such as diffusive dynamics) lead to a broadening of the incident neutron spectrum, in contrast to, e.g., the scattering from a diffusionless crystal, where the scattered neutron energy spectrum consists of an elastic line (corresponding to no energy transfer ...
In the scope of DLS, temporal fluctuations are usually analyzed using the intensity or photon autocorrelation function (also known as photon correlation spectroscopy – PCS or quasi-elastic light scattering – QELS). In the time domain analysis, the autocorrelation function (ACF) usually decays starting from zero delay time, and faster ...
Shneider-Miles scattering (also referred to as collisional scattering [1] or quasi-Rayleigh scattering [2]) is the quasi-elastic scattering of electromagnetic radiation by charged particles in a small-scale medium with frequent particle collisions.
Dynamic light scattering, also known as quasi-elastic light scattering, a technique in physics Quantum logic spectroscopy , an ion control scheme Questlove Supreme , podcast
Iris is a neutron spectrometer, designed for quasi-elastic and low-energy high-resolution inelastic spectroscopy. LOQ is a small-angle neutron scattering instrument used to investigate the shape and size of large molecules, small particles, or porous materials with dimensions typically in the range of 1–100 nm.
Two of them, the International Bank for Reconstruction and Development and the International Development Association, are most commonly referred to as the “World Bank” and are designed to invest in international development projects. Loans are often favorable to borrowers, offering elastic repayment windows with low interest rates.
undergoes quasi-elastic scattering with nucleons, whereas its antiparticle can create hyperons. Quantum coherence between the two particles is lost due to the different interactions that the two components separately engage in. The emerging beam then contains different linear superpositions of the K 0 and K 0. Such a superposition is a mixture ...