- straight-ray tomography
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• томография без учета криволинейности лучей источник-приемник• томография на прямолинейных лучах
English-Russian dictionary of geology. 2011.
straight-ray tomography
Смотреть что такое "straight-ray tomography" в других словарях:
tomography — [tə mäg′rə fē] n. 〚< Gr tomos, a piece cut off (see TOMY) + GRAPHY〛 a process for producing an image of a single plane of an object excluding all other planes, as by using CT SCAN or ULTRASOUND, in … Universalium
Ray tracing (physics) — In physics, ray tracing is a method for calculating the path of waves or particles through a system with regions of varying propagation velocity, absorption characteristics, and reflecting surfaces. Under these circumstances, wavefronts may bend … Wikipedia
Positron emission tomography — (PET) is a nuclear medicine imaging technique which produces a three dimensional image or map of functional processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron emitting radionuclide (tracer), which is… … Wikipedia
Dual-energy X-ray absorptiometry — Not to be confused with Bone scan. Dual energy X ray absorptiometry Intervention A scanner used to measure bone density with dual energy X ray absorptiometry. ICD 9 CM … Wikipedia
Digital X-ray radiogrammetry — (DXR) is a means of measuring bone mineral density (BMD). Digital X ray radiogrammetry is based on the old technique of radiogrammetry. In DXR the cortical thickness of the three middle metacarpal bones in the hand is measured in a digital X ray… … Wikipedia
Single photon emission computed tomography — (SPECT, or less commonly, SPET) is a nuclear medicine tomographic imaging technique using gamma rays. It is very similar to conventional nuclear medicine planar imaging using a gamma camera. However, it is able to provide true 3D information.… … Wikipedia
X-ray machine — An X ray machine is a device used by radiographers to acquire an x ray image. They are used in various fields, notably medicine and security.HistoryShay M. Anderson and Ryan W. Preuninger formulated mathematical equations for X rays. Physicist… … Wikipedia
radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… … Universalium
Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… … Universalium
nervous system disease — Introduction any of the diseases or disorders that affect the functioning of the human nervous system (nervous system, human). Everything that humans sense, consider, and effect and all the unlearned reflexes of the body depend on the… … Universalium
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
