Cross section may refer to:
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Cross section (geometry)
In geometry and science, a cross section is the non-empty intersection (set theory), intersection of a solid body in three-dimensional space with a Plane (geometry), plane, or the analog in higher-dimensional spaces. Cutting an object into slic ...
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Cross-sectional views in architecture and engineering 3D
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Cross section (geology)
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Cross section (electronics)
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Radar cross section, measure of detectability
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Cross section (physics)
In physics, the cross section is a measure of the probability that a specific process will take place in a collision of two particles. For example, the Rutherford cross-section is a measure of probability that an alpha particle will be deflec ...
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Absorption cross section
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Nuclear cross section
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Neutron cross section
In nuclear physics, the concept of a neutron cross section is used to express the likelihood of interaction between an incident neutron and a target nucleus. The neutron cross section σ can be defined as the area in cm2 for which the number of ...
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Photoionisation cross section
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Gamma ray cross section
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''Cross Section'' (album), 1956 musical album by Billy Taylor
See also
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Cross section (fiber), microscopic view of textile fibers.
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Section (fiber bundle)
In the mathematical field of topology, a section (or cross section) of a fiber bundle E is a continuous right inverse of the projection function \pi. In other words, if E is a fiber bundle over a base space, B:
: \pi \colon E \to B
then ...
, in differential and algebraic geometry and topology, a section of a fiber bundle or sheaf
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Cross-sectional data
In statistics and econometrics, cross-sectional data is a type of data collected by observing many subjects (such as individuals, firms, countries, or regions) at a single point or period of time. Analysis of cross-sectional data usually consists ...
, in statistics, econometrics, and medical research, a data set drawn from a single point in time
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Cross-sectional study
In statistics and econometrics, cross-sectional data is a type of data collected by observing many subjects (such as individuals, firms, countries, or regions) at a single point or period of time. Analysis of cross-sectional data usually consists ...
, a scientific investigation utilizing cross-sectional data
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Cross-sectional regression In statistics and econometrics, a cross-sectional regression is a type of Regression analysis, regression in which the Dependent and independent variables, explained and explanatory variables are all associated with the same single period or point i ...
, a particular statistical technique for carrying out a cross-sectional study
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