angle de collimation

См. также в других словарях:

• collimation — The method, in radiology, of restricting and confining the x ray beam to a given area and, in nuclear medicine, of restricting the detection of emitted radiations from a given area of interest. [L. collineo, to direct in a straight line] * * *… …   Medical dictionary

• Small-angle X-ray scattering — (SAXS) is a small angle scattering (SAS) technique where the elastic scattering of X rays (wavelength 0.1 ... 0.2 nm) by a sample which has inhomogeneities in the nm range, is recorded at very low angles (typically 0.1 10°). This angular range… …   Wikipedia

• Small-angle neutron scattering — (SANS) is a laboratory technique, similar to the often complementary techniques of small angle X ray scattering (SAXS) and light scattering. These are particularly useful because of the dramatic increase in forward scattering that occurs at phase …   Wikipedia

• Sextant — Pour les articles homonymes, voir Sextant (homonymie). Un sextant. Un sextant est un instrument de navigation à réflexion servant à mesurer la distance angulaire entre deux points aussi bien verticalement qu h …   Wikipédia en Français

• Sextants — Sextant Pour les articles homonymes, voir Sextant (homonymie). Un sextant. Un sextant est un instrument de navigation permettant de relever la …   Wikipédia en Français

• Binoculars — Binocular telescopes, or binoculars (also known as field glasses), are two identical or mirror symmetrical telescopes mounted side by side and aligned to point accurately in the same direction, allowing the viewer to use both eyes (binocular… …   Wikipedia

• Shearing interferometer — The shearing interferometer is an extremely simple means to observe interference and to use this phenomenon to test the collimation of light beams, especially from laser sources which have a coherence length which is usually a lot longer than the …   Wikipedia

• Theodolite — A theodolite (IPA en|θiːˈɒdəlаɪt) is an instrument for measuring both horizontal and vertical angles, as used in triangulation networks. It is a key tool in surveying and engineering work, particularly on inaccessible grounds, but theodolites… …   Wikipedia

• Centre de Télécommunication Spatiale de Pleumeur-Bodou — 48°47′05″N 3°31′00″O / 48.78472, 3.516667 Le centre de téléc …   Wikipédia en Français

• Centre de Télécommunications Spatiales de Pleumeur-Bodou — Centre de télécommunication spatiale de Pleumeur Bodou 48°47′05″N 3°31′00″O / 48.78472, 3.516667 Le centre de téléc …   Wikipédia en Français

• Centre de télécommunication spatiale de Pleumeur-Bodou — 48°47′05″N 3°31′00″O / 48.78472, 3.516667 Le centre de téléc …   Wikipédia en Français