TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 OBS

A thyratron consists of a hot cathode, an anode, and one or more control grids between the anode and cathode in an airtight glass or ceramic envelope that is filled with gas. The gas is typically hydrogen or deuterium [an isotope of hydrogen]...  2, record 1, English, - hydrogen%2Disotope%20thyratron

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

An emitting cathode ionization gauge with a heated cathode, resembling a simple cylindrical magnetron operating under cut-off conditions, in which a magnetic field is used to lengthen the electron path and so increase the number of ions produced.  2, record 2, English, - hot%2Dcathode%20magnetron%20gauge

Record number: 2, Textual support number: 1 CONT

The hot-cathode magnetron gauge. [The researchers] described a hot-cathode gauge head where the path length travelled by electrons is increased by using a magnetic field, as in a magnetron, operating under cutoff conditions …  1, record 2, English, - hot%2Dcathode%20magnetron%20gauge

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Manomètre à cathode d'émission doté d'une cathode chauffée, qui ressemble à un simple magnétron cylindrique opérant à la coupure, dans lequel un champ magnétique allonge le parcours des électrons et augmente ainsi le nombre d'ions produits.  1, record 2, French, - manom%C3%A8tre%20magn%C3%A9tron%20%C3%A0%20cathode%20chaude

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A process for direct transformation of thermal energy into electric energy by electron emission between a hot cathode and a cold anode.  1, record 3, English, - thermionic%20conversion

Record number: 3, Textual support number: 1 OBS

thermionic conversion: term and definition standardized by ISO.  2, record 3, English, - thermionic%20conversion

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Mode de transformation directe de l'énergie thermique en énergie électrique par émission électronique entre une cathode chaude et une anode froide.  1, record 3, French, - conversion%20thermo%C3%AFonique

Record number: 3, Textual support number: 1 OBS

conversion thermoïonique : terme et définition normalisés par l'ISO.  2, record 3, French, - conversion%20thermo%C3%AFonique

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

In an electron tube, a cathode that is directly or indirectly heated.  2, record 4, English, - hot%20cathode

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Hot cathodes may be either directly heated, where the filament itself is the source of electrons, or indirectly heated, where the filament is electrically insulated from the cathode; this configuration minimizes the introduction of hum when the filament is energized with alternating current. The filament is most often made of tungsten. With indirectly heated cathodes, the filament is usually called the heater instead. The cathode for indirect heating is usually realized as a nickel tube which surrounds the heater.  2, record 5, English, - indirectly%20heated%20cathode

Record number: 5, Textual support number: 1 OBS

indirectly heated cathode: term officially approved by the Electronics and Telecommunications Terminology Committee.  3, record 5, English, - indirectly%20heated%20cathode

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 OBS

cathode à chauffage indirect : terme uniformisé par le Comité d’uniformisation des termes de l’électronique et des télécommunications (CUTEL).  2, record 5, French, - cathode%20%C3%A0%20chauffage%20indirect

Record 5,  Textual support,  Spanish

Record number: 5, Textual support number: 1 DEF

Cátodo llevado a alta temperatura por un procedimiento distinto al paso de corriente por él.  1, record 5, Spanish, - c%C3%A1todo%20de%20calentamiento%20indirecto

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 OBS

hot-cathode stepping tube : term officially approved by the Electronics and Telecommunications Terminology Committee.  2, record 6, English, - hot%2Dcathode%20stepping%20tube

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 OBS

tube-compteur à cathode chaude : terme uniformisé par le Comité d’uniformisation des termes de l’électronique et des télécommunications (CUTEL).  2, record 6, French, - tube%2Dcompteur%20%C3%A0%20cathode%20chaude

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

Classical DC (direct current) electrical discharge tube. In the glow discharge regime (10^14 to 5x10^18 charged particles/m^3, 10^4 to 5x10^4 K) the plasma is luminous due to excitation collisions by accelerated electrons. At high current densities the high heat load on the cathode triggers electron emission and the discharge changes to the highly luminous arc regime (10^20 to 10^25 charged particles/m^3, 2x10^3 to 10^5 K).  1, record 7, English, - discharge%20regime

Record number: 7, Textual support number: 1 OBS

As the current and voltage increase, the cathode current density also increases, ultimately heating the cathode and causing incandescence and thermionic emission. Once the cathode is hot enough to emit electrons thermionically, the discharge will change to an arc regime.  2, record 7, English, - discharge%20regime

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 CONT

Dessiccation de l'air. Il est indispensable que l'air d'alimentation de l'ozoneur soit très sec, en effet, du fait de la présence de vapeur d'eau, il se produit un abaissement de la valeur de la constante diélectrique du milieu gazeux, ce qui peut entraîner à la limite le passage du régime d'effluve à un régime d'arc; avec pour conséquence la détérioration plus ou moins rapide des électrodes.  1, record 7, French, - r%C3%A9gime%20d%27effluve

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

In the last decade many applications of non-thermal atmospheric discharges have been investigated for application in pollution control... Streamer like discharges like pulsed corona and dieletric barrier discharges as well as atmospheric glow discharges has been used. In all cases a transition to the spark regime or arc regime is prevented to keep the energy input limited to (fast) electrons instead of to neutral gas heating.  2, record 8, English, - arc%20regime

Record number: 8, Textual support number: 2 CONT

As the current and voltage increase, the cathode current density also increases, ultimately heating the cathode and causing incandescence and thermionic emission. Once the cathode is hot enough to emit electrons thermionically, the discharge will change to an arc regime.  3, record 8, English, - arc%20regime

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

Dessiccation de l'air. Il est indispensable que l'air d'alimentation de l'ozoneur soit très sec, en effet, du fait de la présence de vapeur d'eau, il se produit un abaissement de la valeur de la constante diélectrique du milieu gazeux, ce qui peut entraîner à la limite le passage du régime d'effluve à un régime d'arc, avec pour conséquence la détérioration plus ou moins rapide des électrodes.  2, record 8, French, - r%C3%A9gime%20d%27arc

Record number: 8, Textual support number: 2 CONT

Tubes électroniques. La décharge «luminescente» fournit un courant variant de quelques millièmes d'ampères à dix ampères sous quelques centaines de volts. Elle est utilisée notamment dans les tubes d'éclairage (tubes «fluorescents») et pour l'excitation de certains lasers (hélium-néon). On emploie souvent une cathode chaude qui réduit la tension et augmente le courant (thyratrons, valves à mercure). Le régime d'arc, sous quelques volts, fournit des courants pouvant atteindre des valeurs de l'ordre de 10³ A (tubes redresseurs industriels, ignitrons).  3, record 8, French, - r%C3%A9gime%20d%27arc

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 DEF

A metal structure to reduce the heat radiation losses from a hot cathode or to protect other elements of the tube against heat radiation.  1, record 9, English, - heat%20shield

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 DEF

Structure métallique servant à réduire les pertes de chaleur d'une cathode chaude par rayonnement, ou à protéger d'autres éléments du tube contre le rayonnement thermique.  1, record 9, French, - %C3%A9cran%20thermique

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 DEF

A hot cathode lamp requiring preheating of the electrodes to start.  2, record 10, English, - hot%2Dstart%20lamp

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 DEF

Lampe fluorescente à cathode chaude exigeant un préchauffage des électrodes, pour s'allumer.  2, record 10, French, - lampe%20%C3%A0%20amor%C3%A7age%20%C3%A0%20chaud

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 CONT

An atomic absorption spectrophotometer measures element concentrations in solution by spraying(nebulising) the solution into a long narrow hot flame. Light from a hollow cathode lamp, containing the element to be analysed, passes above the long and narrow burner to a monochromator. The monochromator isolates ground state radiation from the hollow cathode lamp. The solution is sprayed into the fuel and air premixing chamber feeding the flame. Free atoms are produced in the flame because of the heat and reducing conditions. If the atoms are the same as the element in the lamp, then light is absorbed. The degree of absorption depends on the amount of that element present in the original solution. The results are compared with standard solutions which allow concentrations to be determined. The technique can be highly precise and accurate.  2, record 11, English, - atomic%20absorption%20spectrometer

Record number: 11, Textual support number: 1 OBS

An instrument used in the restoration of art works.  3, record 11, English, - atomic%20absorption%20spectrometer

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

Spectromètre permettant d'effectuer une analyse chimique en vaporisant un échantillon, habituellement sous forme liquide, dans un flacon et en mesurant l'absorption par les atomes non excités dans la vapeur de différentes longueurs d'ondes résonantes étroites de la lumière, qui sont caractéristiques d'un élément donné. La quantité d'un élément présent est proportionnelle à la quantité d'absorption par la vapeur.  2, record 11, French, - spectrom%C3%A8tre%20d%27absorption%20atomique

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

an electric-discharge lamp whose mode of operation is that of an arc discharge. The cathode may be heated by the discharge or by external means.  1, record 12, English, - hot%2Dcathode%20lamp

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 DEF

Lampe à décharge dans laquelle la lumière est produite par la colonne positive d'une décharge en arc.  1, record 12, French, - lampe%20%C3%A0%20cathode%20chaude

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  French

Record 13,  Textual support,  Spanish