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In condensed-matter physics, channelling (or channeling) is the process that constrains the path of a charged particle in a crystalline solid. [1] [2] [3]Many physical phenomena can occur when a charged particle is incident upon a solid target, e.g., elastic scattering, inelastic energy-loss processes, secondary-electron emission, electromagnetic radiation, nuclear reactions, etc.
Emission channeling is an experimental technique for identifying the position of short-lived radioactive atoms in the lattice of a single crystal. [ 1 ] When the radioactive atoms decay, they emit fast charged particles (e.g., α-particles and β-particles ).
Channeling (New Age), influences attributed to esoteric communications via a person described as a channel; Chopping and channeling of an automobile's body; Legal channeling, a contractual or legal redirection of responsibilities from an organization to another
In this diagram, two particles come in with momenta p 1 and p 2, they interact in some fashion, and then two particles with different momentum (p 3 and p 4) leave.. In theoretical physics, the Mandelstam variables are numerical quantities that encode the energy, momentum, and angles of particles in a scattering process in a Lorentz-invariant fashion.
Instead, the MCA records all measured counts in one channel for a set time interval (called the "dwell time"), then switches to the next channel to record the subsequent time interval, and so on. The internal control voltage signal used to switch channels when the dwell time elapses is often available to the experimenter and can be used to ...
In quantum information theory, a quantum channel is a communication channel which can transmit quantum information, ... Lecture Notes in Physics. Vol. 611.
Electron channelling contrast imaging (ECCI) is a scanning electron microscope (SEM) diffraction technique used in the study of defects in materials. These can be dislocations or stacking faults that are close to the surface of the sample, low angle grain boundaries or atomic steps.
In nuclear and materials physics, stopping power is the retarding force acting on charged particles, typically alpha and beta particles, due to interaction with matter, resulting in loss of particle kinetic energy. [1] [2] Stopping power is also interpreted as the rate at which a material absorbs the kinetic energy of a charged particle.