How To Use Thermion In A Sentence
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Alternately, electron emission may be by thermionic means.
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Since 1914 he worked at thermionics, photoelectric effects, magnetism, the emission of electrons by chemical action, the theory of electrons, the quantum theory, the spectrum of molecular hydrogen, soft X-rays, the fine structure of Ha and Da.
Owen Willans Richardson - Biography
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Another theory is that, since energy is required to extract electrons from the heated material, there should be cooling when thermions are emitted.
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Currently conventional thermionic cathode gun cannot satisfy people's requirement for high lightness and long gun.
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During the same period researches were carried on in thermal radiation with the collaboration of Mr. J.R. Weeks, and in thermionics with Dr. H.A. Pidgeon and Dr. Germer.
Clinton Davisson - Biography
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Currently conventional thermionic cathode gun cannot satisfy people's requirement for high lightness and long gun.
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Photocells capable of seeing things in a physical sense, advanced photography which can record what is seen or even what is not, thermionic tubes capable of controlling potent forces under the guidance of less power than a mosquito uses to vibrate his wings, cathode ray tubes rendering visible an occurrence so brief that by comparison a microsecond is a long time, relay combinations which will carry out involved sequences of movements more reliably than any human operator and thousands of times as fast — there are plenty of mechanical aids with which to effect a transformation in scientific records.
As We May Think
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If the ionization electrode is located at an appropriate position in the vicinity of the evaporation source and a positive voltage with respect to that of the evaporation source is applied to the electrode, thermions and secondary electrons from the evaporation source migrate toward the ionization electrode.
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When the main power supply of the X-ray tube is on, the cathode emits thermions as it is heated by a heater.
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The most important fact was that Mr. Richardson's opinion about the thermion-phenomenon with fixed laws was totally confirmed.
Nobel Prize in Physics 1928 - Presentation Speech
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Attached is a document setting out the basics for Curled Ballistic thermionics.
ZPEnergy.com
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Well this is probably serendipity, so I attach a description of a new approach to thermionics.
ZPEnergy.com
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This work contains the principles of operation of The Thermionic Vacuum Tube, and coordinates the phenomena encountered in a study of this field.
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Alloyed thorium enhances the emission of thermions by lowering the work function barriers.
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The design / theory has been given the thumbs up by professor XY Fu of the Shanghai university and also by a few other experts in thermionics.
ZPEnergy.com
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Finally, our simulation result shows that conventional SOI SBSD-MOSFET can effectively suppress thermionic emission leakage current, but it still can not suppress tunneling leakage current.
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The thermionic emission cooling employing hetero structure is a high efficient cooling method.
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He was awarded the Hughes Medal by the Royal Society (1920), especially for work on thermionics; elected President, Section A, of the British Association (1921) and President of the Physical
Owen Willans Richardson - Biography
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thermionic cathode
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He discovered the Schottky effect, an irregularity in the emission of thermions in a vacuum tube and invented the screen-grid tetrode tube.
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Accordingly, the I-V characteristics of N and P type DBRs due to three kinds of current mechanisms:the drift-diffusion, pure drift and thermionic emission currents, have been analyzed theoretically.
