What is point source?

  • (noun): A spatially constricted by concentrated source (especially of radiation or pollution).

Some articles on point, point source, source, sources:

Line Array - Theory
... In the free field, sound which has its origin at a point (a point source) will be propagated equally in all directions as a sphere ... the sound intensity quarters for every doubling of distance from the point source ... is expressed by the equation dB = 20log(p1/p2), so for every doubling of distance from the point source p1 = 1 and p2 = 2, thus there is an sound pressure loss of ...
Cylindrical Harmonics - Definition - Example: Point Source Inside A Conducting Cylindrical Tube - Point Source in Open Space
... zeroes of J_n(z) becomes an integral, and we have the field of a point source in infinite space and R is the distance from the point source to the measurement point ...
Spectral Flux Density - Flux Density Received From An Unresolvable "point Source"
... received from a remote unresolvable "point source", the measuring instrument, usually telescopic, though not able to resolve any detail of the source itself, must be able to optically resolve enough details of the ... radiation is received from that unresolved point source, per unit receiving area facing the source, per unit wavelength range ... area 1 m2 is pointed directly at the source of the radiation ...
Point Source (disambiguation)
... A point source is a localised, relatively small source of something ... Point source may also refer to Point source (pollution), a localised (small) source of pollution Point source water pollution, water pollution with a localized source Point mass, a point ...
Hybrid Theory For Photon Transport In Tissue - Hybrid Theory
... combines the Diffusion Theory and the Monte Carlo method in order to increase accuracy near the source and boundaries while reducing computation time ... Using an array of image sources fulfills this boundary condition ... The coordinates for the source pairs are where is the coordinate for the point source and is the slab thickness ...

Famous quotes containing the words source and/or point:

    In the order of literature, as in others, there is no act that is not the coronation of an infinite series of causes and the source of an infinite series of effects.
    Jorge Luis Borges (1899–1986)

    Any historian of the literature of the modern age will take virtually for granted the adversary intention, the actually subversive intention, that characterizes modern writing—he will perceive its clear purpose of detaching the reader from the habits of thought and feeling that the larger culture imposes, of giving him a ground and a vantage point from which to judge and condemn, and perhaps revise, the culture that produces him.
    Lionel Trilling (1905–1975)