cross section for scattering

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• Cross section (physics) — A cross section is the effective area which governs the probability of some scattering or absorption event. Together with particle density and path length, it can be used to predict the total scattering probability via the Beer Lambert law. In… …   Wikipedia

• cross section — 1. a section made by a plane cutting anything transversely, esp. at right angles to the longest axis. 2. a piece so cut off. 3. a photograph, diagram, or other pictorial representation of such a section. 4. the act of cutting anything across. 5.… …   Universalium

• Scattering cross-section — The scattering cross section, sigma; scat, relates the scattering of light or other radiation to the number of particles present. In terms of area, the total cross section ( sigma;) is the sum of the cross sections due to absorption, scattering… …   Wikipedia

• Neutron cross section — Science with Neutrons Foundations Neutron temperature Flux · Radiation  …   Wikipedia

• Nuclear cross section — The nuclear cross section of a nucleus is used to characterize the probability that a nuclear reaction will occur. The concept of a nuclear cross section can be quantified physically in terms of characteristic area where a larger area means a… …   Wikipedia

• Neutron cross-section — The total neutron cross section of an isotope of a chemical element is the effective cross sectional area that an atom of that isotope presents to neutron scattering and absorption. cattering versus absorptionWhen a neutron approaches an atomic… …   Wikipedia

• Absorption cross section — is a measure for the probability of an absorption process. More generally, the term cross section is used in physics to quantify the probability of a certain particle particle interaction, e.g., scattering, photoabsorption, etc. (Note that light… …   Wikipedia

• Radar cross section — (RCS) is a measure of how detectable an object is with a radar. For example a stealth aircraft (which is designed to be undetectable) will have design features that give it a low RCS, as opposed to a passenger airliner that will have a high… …   Wikipedia

• Scattering length — The scattering length in quantum mechanics describes low energy scattering. It is represented by the term a. General concept When a slow particle scatters off a short ranged scatterer (e.g. an impurity in a solid or a heavy particle) it cannot… …   Wikipedia

• Scattering theory — Top: the real part of a plane wave travelling upwards. Bottom: The real part of the field after inserting in the path of the plane wave a small transparent disk of index of refraction higher than the index of the surrounding medium. This object… …   Wikipedia

• Thomson scattering — In physics, Thomson scattering is the scattering of electromagnetic radiation by acharged particle. The electric and magnetic components of theincident wave accelerate the particle. As it accelerates, it in turn emits radiation and thus, the wave …   Wikipedia