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1 пучок
( труб) bank, beam, bunch, bundle, ( вид напрягаемой арматуры) cable, cluster, ( в коммутации) group связь, pencil матем., ray* * *пучо́к м.1. bunch, bundle2. (излучения, частиц) beamвыводи́ть пучо́к — extract [couple out] the beamпучо́к дифраги́рует — the beam is diffractedзапира́ть пучо́к — cut off [blank] the beamколлими́ровать пучо́к — collimate the beamотража́ть пучо́к — reflect the beamпреломля́ть пучо́к — refract the beamпрерыва́ть пучо́к — chop [interrupt] the beamрассе́ивать пучо́к — scatter the beamрасфокуси́ровать пучо́к — defocus the beamсводи́ть вме́сте (разделё́нные) пучки́ — re-unite the (separated) beamsфокуси́ровать пучо́к — focus the beamа́томный пучо́к — atomic beamвыходя́щий пучо́к — emergent beamи́мпульсный пучо́к — pulsed beamио́нно-фокуси́рованный пучо́к — ion-focused beamио́нный пучо́к — ion beamка́бельный пучо́к — loom, bunched [multi-wire] cableобы́чно провода́ собира́ются в (ка́бельные) пучки́ — the normal practice is to tape single-core cables together in “looms”пучо́к луче́й — bundle [pencil] of raysпучо́к луче́й собира́ется в одно́й то́чке — a bundle of rays comes to focus at a single pointпучо́к луче́й собира́ется не в одно́й то́чке (напр. при астигматизме) — a bundle of rays comes to focus at different pointsпучо́к ме́дленных электро́нов — slow-electron beamмолекуля́рный пучо́к — molecular beamмоноэнергети́ческий пучо́к — monochromatic [monoenergetic] beamпучо́к непреры́вного излуче́ния — continuous-wave [CW] beamпа́дающий пучо́к — incident beamпла́зменный пучо́к — plasma beamпучо́к проводо́в — wire bunch, conductor bundleпроше́дший пучо́к — transmitted beamпучо́к прямы́х мат. — pencil of linesрасходя́щийся пучо́к — divergent [diverging] beamпучо́к рентге́новских луче́й — X-ray beamпучо́к све́та опт. — light beam, beam of lightразделя́ть пучо́к све́та — separate [split] the light beam (into …)пучо́к све́та собира́ется в фо́кусе — the light beam closes down to a point at the focusпучо́к силовы́х ли́ний — bundle of lines of forceпучо́к соедини́тельных ли́ний — тлф. брит. junction group; амер. trunk group, multiple trunkвыделя́ть пучки́ соедини́тельных ли́ний — segregate trunk groupsпучо́к с ре́зкими грани́цами — well-defined beamсходя́щийся пучо́к — convergent [converging] beamпучо́к труб тепл., хим. — tube bundleпучо́к труб, гладкотру́бный — bare-tube bankпучо́к труб, змеевико́вый — tube-coil bankпучо́к труб, компа́ктный — close-tube bankпучо́к труб, конвекти́вный — convection tube bankпучо́к труб, коридо́рный — in-line tube bankпучо́к труб, коте́льный — tube bankпучо́к труб, радиа́льный — radial-flow bundleпучо́к труб, стеснё́нный — close tube bankпучо́к труб, ша́хматный — staggered tube bankу́зкий пучо́к — pencil (beam), narrow beamширо́кий пучо́к — broad [extended, extensive] beamэлектро́нный пучо́к — electron beamэлектро́нный пучо́к большо́й пло́тности — high-density electron beamэлектро́нный, ле́нточный пучо́к — strip electron beam -
2 Pierce, John Robinson
[br]b. 27 March 1910 Des Moines, Iowa, USA[br]American scientist and communications engineer said to be the "father" of communication satellites.[br]From his high-school days, Pierce showed an interest in science and in science fiction, writing under the pseudonym of J.J.Coupling. After gaining Bachelor's, Master's and PhD degrees at the California Institute of Technology (CalTech) in Pasadena in 1933, 1934 and 1936, respectively, Pierce joined the Bell Telephone Laboratories in New York City in 1936. There he worked on improvements to the travelling-wave tube, in which the passage of a beam of electrons through a helical transmission line at around 7 per cent of the speed of light was made to provide amplification at 860 MHz. He also devised a new form of electrostatically focused electron-multiplier which formed the basis of a sensitive detector of radiation. However, his main contribution to electronics at this time was the invention of the Pierce electron gun—a method of producing a high-density electron beam. In the Second World War he worked with McNally and Shepherd on the development of a low-voltage reflex klystron oscillator that was applied to military radar equipment.In 1952 he became Director of Electronic Research at the Bell Laboratories' establishment, Murray Hill, New Jersey. Within two years he had begun work on the possibility of round-the-world relay of signals by means of communication satellites, an idea anticipated in his early science-fiction writings (and by Arthur C. Clarke in 1945), and in 1955 he published a paper in which he examined various possibilities for communications satellites, including passive and active satellites in synchronous and non-synchronous orbits. In 1960 he used the National Aeronautics and Space Administration 30 m (98 1/2 ft) diameter, aluminium-coated Echo 1 balloon satellite to reflect telephone signals back to earth. The success of this led to the launching in 1962 of the first active relay satellite (Telstar), which weighed 170 lb (77 kg) and contained solar-powered rechargeable batteries, 1,000 transistors and a travelling-wave tube capable of amplifying the signal 10,000 times. With a maximum orbital height of 3,500 miles (5,600 km), this enabled a variety of signals, including full bandwidth television, to be relayed from the USA to large receiving dishes in Europe.From 1971 until his "retirement" in 1979, Pierce was Professor of Electrical Engineering at CalTech, after which he became Chief Technologist at the Jet Propulsion Laboratories, also in Pasadena, and Emeritus Professor of Engineering at Stanford University.[br]Principal Honours and DistinctionsInstitute of Electrical and Electronics Engineers Morris N.Liebmann Memorial Award 1947; Edison Medal 1963; Medal of Honour 1975. Franklin Institute Stuart Ballantine Award 1960. National Medal of Science 1963. Danish Academy of Science Valdemar Poulsen Medal 1963. Marconi Award 1974. National Academy of Engineering Founders Award 1977. Japan Prize 1985. Arthur C.Clarke Award 1987. Honorary DEng Newark College of Engineering 1961. Honorary DSc Northwest University 1961, Yale 1963, Brooklyn Polytechnic Institute 1963. Editor, Proceedings of the Institute of Radio Engineers 1954–5.Bibliography23 October 1956, US patent no. 2,768,328 (his development of the travelling-wave tube, filed on 5 November 1946).1947, with L.M.Field, "Travelling wave tubes", Proceedings of the Institute of RadioEngineers 35:108 (describes the pioneering improvements to the travelling-wave tube). 1947, "Theory of the beam-type travelling wave tube", Proceedings of the Institution ofRadio Engineers 35:111. 1950, Travelling Wave Tubes.1956, Electronic Waves and Messages. 1962, Symbols, Signals and Noise.1981, An Introduction to Information Theory: Symbols, Signals and Noise: Dover Publications.1990, with M.A.Knoll, Signals: Revolution in Electronic Communication: W.H.Freeman.KF -
3 электронный пучок большой плотности
Engineering: high-density electron beamУниверсальный русско-английский словарь > электронный пучок большой плотности
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4 плотность тока в электронном пучке
[lang name="Russian"]диафрагмирование луча; диафрагмирование пучка — beam masking
Русско-английский научный словарь > плотность тока в электронном пучке
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5 пучок
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