- focal spot
- the part of the target of an x-ray tube which is bombarded by the focused electron stream when the tube is energized.
Medical dictionary. 2011.
focal spot
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focal spot — židinio dėmė statusas T sritis radioelektronika atitikmenys: angl. focal spot vok. Brennfleck, m rus. фокусное пятно, n pranc. spot focal, m … Radioelektronikos terminų žodynas
focal spot size — The measured size of a focal spot of an x ray tube, a function of the actual size of the cathode and the angulation of the anode surface. See focal spot … Medical dictionary
focal spot — noun : the small area of the target of an X ray tube on which the cathode rays are focused … Useful english dictionary
spot focal — židinio dėmė statusas T sritis radioelektronika atitikmenys: angl. focal spot vok. Brennfleck, m rus. фокусное пятно, n pranc. spot focal, m … Radioelektronikos terminų žodynas
Focal length — The focal length of an optical system is a measure of how strongly it converges (focuses) or diverges (diffuses) light. A system with a shorter focal length has greater optical power than one with a long focal length. Thin lens approximation For… … Wikipedia
spot — 1. SYN: macula. 2. To lose a slight amount of blood through the vagina. acoustic spots macula of utricle, macula of saccule. Bitot spots small, circumscribed, lusterless, grayish white, foamy, greasy, triangular deposits on the bulbar … Medical dictionary
Focal cloud — A focal cloud is the collection of focal points of any imperfect lens,whether optical, electrostatic or electromagnetic. This includes Parabolic antennas and lens type reflective antennas of all kinds.In this focal cloud illustration, a perfect… … Wikipedia
focal inflammation — inflammation confined to a single spot or to a few limited spots … Medical dictionary
Mongolian spot — Classification and external resources Mongolian spot visible on six month old Taiwanese baby girl ICD 10 D … Wikipedia
Flange focal distance — The flange focal distance (FFD) (also known as the flange to film distance, flange focal depth, flange back distance (FBD), or register, depending on the usage and source) of a lens mount for an interchangeable lens camera system is one of its… … Wikipedia
