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1 дифракция рентгеновских лучей
1) Medicine: diffraction of X-rays2) Engineering: X-ray diffractionУниверсальный русско-английский словарь > дифракция рентгеновских лучей
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2 дифракция рентгеновских лучей
X-ray diffraction, diffraction of X raysРусско-английский физический словарь > дифракция рентгеновских лучей
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3 рентгеновская дифракция
X-ray diffraction, diffraction of X raysРусско-английский физический словарь > рентгеновская дифракция
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4 Randall, Sir John Turton
SUBJECT AREA: Medical technology[br]b. 23 March 1905 Newton-le-Willows, Lancashire, Englandd. 16 June 1984 Edinburgh, Scotland[br]English physicist and biophysicist, primarily known for the development, with Boot of the cavity magnetron.[br]Following secondary education at Ashton-inMakerfield Grammar School, Randall entered Manchester University to read physics, gaining a first class BSc in 1925 and his MSc in 1926. From 1926 to 1937 he was a research physicist at the General Electric Company (GEC) laboratories, where he worked on luminescent powders, following which he became Warren Research Fellow of the Royal Society at Birmingham University, studying electronic processes in luminescent solids. With the outbreak of the Second World War he became an honorary member of the university staff and transferred to a group working on the development of centrimetric radar. With Boot he was responsible for the development of the cavity magnetron, which had a major impact on the development of radar.When Birmingham resumed its atomic research programme in 1943, Randall became a temporary lecturer at the Cavendish Laboratory in Cambridge. The following year he was appointed Professor of Natural Philosophy at the University of St Andrews, but in 1946 he moved again to the Wheatstone Chair of Physics at King's College, London. There his developing interest in biophysical research led to the setting up of a multi-disciplinary group in 1951 to study connective tissues and other biological components, and in 1950– 5 he was joint Editor of Progress in Biophysics. From 1961 until his retirement in 1970 he was Professor of Biophysics at King's College and for most of that time he was also Chairman of the School of Biological Sciences. In addition, for many years he was honorary Director of the Medical Research Council Biophysics Research Unit.After he retired he returned to Edinburgh and continued to study biological problems in the university zoology laboratory.[br]Principal Honours and DistinctionsKnighted 1962. FRS 1946. FRS Edinburgh 1972. DSc Manchester 1938. Royal Society of Arts Thomas Gray Memorial Prize 1943. Royal Society Hughes Medal 1946. Franklin Institute John Price Wetherill Medal 1958. City of Pennsylvania John Scott Award 1959. (All jointly with Boot for the cavity magnetron.)Bibliography1934, Diffraction of X-Rays by Amorphous Solids, Liquids \& Gases (describes his early work).1953, editor, Nature \& Structure of Collagen.1976, with H.Boot, "Historical notes on the cavity magnetron", Transactions of the Institute of Electrical and Electronics Engineers ED-23: 724 (gives an account of the cavity-magnetron development at Birmingham).Further ReadingM.H.F.Wilkins, "John Turton Randall"—Bio-graphical Memoirs of Fellows of the Royal Society, London: Royal Society.KFBiographical history of technology > Randall, Sir John Turton
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5 raggio
m (pl -ggi) raymathematics radiusraggio d'azione rangefig duties, responsibilitiesraggio di sole ray of sunshineraggi pl X x-raysraggi pl infrarossi/ultravioletti infrared/ultraviolet rays* * *raggio s.m.1 ray, beam: raggio di sole, sunbeam (o ray of sunlight); raggio di luna, moonbeam (o ray of moonlight); raggio luminoso, ray of light; un debole raggio di luce, a faint gleam of light; fascio di raggi, pencil (o beam) of light; non abbiamo visto un raggio di sole in dieci giorni!, we haven't seen a ray of sunshine in ten days!3 (fis.) ray: raggio alfa, alpha ray; raggio catodico, cathode ray; raggio cosmico, cosmic ray; raggio infrarosso, infra-red ray; raggio positivo, positive (o canal) ray; raggio ultravioletto, ultraviolet ray // raggio X, X-ray: astronomia a raggi X, X-ray astronomy; cristallografia a raggi X, X-ray cristallography; diffrazione dei raggi X, X-ray diffraction; microscopio a raggi X, X-ray microscopy; spettro a raggi X, X-ray spectrum; tubo a raggi X, X-ray tube4 (mat.) radius*: raggio di un cerchio, radius of a circle; raggio del cerchio inscritto, inradius // (mecc.): raggio del cerchio primitivo, pitch circle radius; raggio del cono primitivo, cone distance; raggio di curvatura, radius of curvature5 ( distanza, portata) radius*; range: armi a corto, a lungo raggio, short-range, long-range weapons; entro un raggio di cinque miglia, within a radius (o a range) of five miles // un ampio raggio d'azione, a wide range of action // ad ampio, vasto raggio, large scale: la campagna elettorale sarà un'operazione a vasto raggio, the election campaign will be a large scale operation6 ( di ruota) spoke* * *1) mat. radius*2) (distanza)raggio d'azione — (di armi) range; fig. sphere of activity
a lungo, corto raggio — long-range, short-range
3) (di luce) beam, rayun raggio di sole — a ray of sunshine o of sunlight, a sunbeam
un raggio di speranza — fig. a ray o gleam of hope
4) med. (radiazione) X-ray, radiation U5) fis. ray6) (di ruota) spoke7) edil. wing•raggio luminoso — ray of light, light ray
- gi alfa — alpha rays
- gi cosmici — astr. cosmic rays
- gi gamma — gamma rays
* * *raggiopl. -gi /'raddʒo, dʒi/sostantivo m.1 mat. radius*2 (distanza) nel raggio di 5 km within a 5 km radius; raggio d'azione (di armi) range; fig. sphere of activity; a lungo, corto raggio long-range, short-range3 (di luce) beam, ray; un raggio di sole a ray of sunshine o of sunlight, a sunbeam; raggio di luna moonbeam; un raggio di speranza fig. a ray o gleam of hope5 fis. ray6 (di ruota) spoke7 edil. wingraggio laser laser beam; raggio luminoso ray of light, light ray; raggio ultravioletto ultraviolet ray; raggio vettore radius vector; - gi alfa alpha rays; - gi beta beta rays; - gi catodici cathode rays; - gi cosmici astr. cosmic rays; - gi gamma gamma rays; - gi infrarossi infrared rays; - gi X X-rays. -
6 radiografía
• radiograph• radiography• roentgen rays• roentgenogram• X-ray diffraction apparatus• X-ray diffraction camera• X-ray photograph• X-ray picture• x-ray print• x-ray spectrum -
7 обычно
••Liquid diffraction patterns characteristically show one or two maxima that correspond to...
•The great majority of routinely detected events can be classified as earthquakes.
•The receptacle is conventionally 2-wire, 120-volt, 15-ampere.
•That is how the logarithms are conventionally tabulated.
•This inert phase is normally a gel structure.
•Engineering practice is to express quantities in lb/h.
•Group I members tend to have relatively few nucleosides of this sort.
•Such lasers typically generate pulses of 5—10 ns duration.
•Traditionally, the residual bottoms have been blended with lighter stocks.
•It is usual to check the... level whenever there is any doubt.
•In this application it is common (or usual) to employ...
•It is common for metabolic pathways to exhibit some form of cyclic pattern.
•The atomic weight is commonly called the mass number.
•The head gain is customarily measured in inches of water.
•It is customary to install a pump having two or three stages.
•The factor is generally taken to be equal to unity.
•A field lens is generally placed behind the reticle.
•Floating roof tanks are normally employed for prevention of loss through evaporation.
•The temperature at this point is ordinarily the same as that of the forward cylinder section.
•Where it is suspected that... it is the practice (or custom) to steam out the coils.
•In large marine installations it is standard (or usual) practice to use...
•The sensitivity for detection is typically (or usually, or generally, or commonly, or as a rule) five times as great as...
•In designing such packed columns, it is common (or general) practice to assume "piston", or "plug" flow.
•The regions of strongest divergence tend to be found over the subtropical regions.
•Many plant breeders make a practice of having different batches of seed treated with gamma rays, neutrons and one chemical mutagen.
•The usual way to stop the intrusion has been to drill... (геол.).
II•In this way dye molecules can enter more freely otherwise inaccessible dye-sites.
Русско-английский научно-технический словарь переводчика > обычно
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8 дифракционный конус
1) Metallurgy: cone of diffracted beam, cone of diffracted rays2) Microelectronics: diffraction coneУниверсальный русско-английский словарь > дифракционный конус
См. также в других словарях:
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diffraction — noun Etymology: New Latin diffraction , diffractio, from Latin diffringere to break apart, from dis + frangere to break more at break Date: 1671 a modification which light undergoes especially in passing by the edges of opaque bodies or through… … New Collegiate Dictionary
diffraction — noun when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands (Freq. 1) • Derivationally related forms: ↑diffract • Hypernyms: ↑optical phenomenon • Hyponyms: ↑X ray diffraction … Useful english dictionary
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diffraction — Deflection of the rays of light from a straight line in passing by the edge of an opaque body or in passing an obstacle of about the size of the wavelength of the light. [L. dif fringo, pp. fractus, to break in pieces] * * * dif·frac·tion dif rak … Medical dictionary
diffraction grating — Sheets of glass, plastic, or metal inscribed with grids whose lines or dots diffract any light directed at the gridded surface and break this light up into its color spectra so that the rays may be measured accurately … Glossary of Art Terms
Coherent diffraction imaging — A diffraction pattern of a gold nanocrystal formed from using a nano area beam of coherent X rays. This reciprocal space diffraction image was taken by Ian Robinson s Group to be used in the reconstruction of a real space coherent x ray… … Wikipedia
