backscatter

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Related to backscattered: backward scattering

backscatter

 [bak´skat″er]
in radiology, radiation deflected by scattering processes at angles greater than 90 degrees to the original direction of the beam of radiation.

back·scat·ter

(bak'skat-ĕr),
Secondary radiation deflected more than 90° from the primary beam. See: scattered radiation.

backscatter

Cytometry
One of two parameters measured in flow cytometry, which is detected at a 90º angle to a laser light beam and corresponds to the fluorescence of individual cells or intracellular components stained with rhodamine- or isothiocyanate-labelled monoclonal antibodies.

Nuclear physics
Electromagnetic radiation—usually understood to be photons, but also ultrasonic waves, etc.—that reflects > 90º from the source, or back in the general direction of a source.

back·scat·ter

(bak'skat-ĕr)
Deflection of diagnostic radiation at angles exceeding 90 degrees to the direction of the beam.
References in periodicals archive ?
In this paper, a method for 3D rough fractal surface characterization from backscattered radar data is presented.
Parametric (integrated backscatter and attenuation) images constructed using backscattered radio frequency signals (2556 MHz) from human aortae in vitro.
To interpret this phenomenon, the amplitude of backscattered field and the reciprocal of curvature (1/[kappa], [kappa] is the curvature) of the smooth surface are shown alongside in Fig.
For agricultural applications particularly crop discrimination the hybrid polarimetric modes act as quasi fullpolarimetric that preserves more information about the target in the backscattered field compared to the linear dual-polarization modes.
Then, the backscatter detector was inserted into the microscope chamber and the same sections were viewed in the backscattered electron imaging (BEI) mode, using a setting that maximized backscattered electron signal, as follows: working distance 15 mm.
Quantitative backscattered electron imaging is a relatively new technique for studying mineralization patterns, said Dr.
The bacteria, as a lower resonance enhanced Raman backscattered energy, is analyzed for the presence or absence of the bacteria.
The improvement in the analysis of secondary and backscattered electrons gives the S-4800 a significant edge over comparable products from other manufacturers, according to Hitachi.
During high wind periods, when waves and turbulent mixing increase the gas transfer rate, the intensity of the backscattered signal is weaker, since the waves act as facets that scatter the altimeter beam randomly in many directions.
The SEM images were obtained with an efficient backscattered electron detector (10-15 KV primary electrons).
When light from a coherent pulse reaches each element, it will be backscattered, and since the field contributions from adjacent elements within the spatial length of the pulse have similar phase relations owing to the coherence of the light, the backscattering field from each one will interfere at the receiver.