TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

When an ionizing particle enters the device, it collides with gas atoms and strikes electrons from their orbit around the nucleus of the gas atoms. In addition, an ionizing particle striking the outside of the tube can also knock electrons off the metal casing. In either case, these free electrons then are attracted to the positively charged central wire, gaining energy by the attraction. As they approach the wire they knock electrons off other atoms, creating an avalanche or cascade effect which results in a pulse of current large enough to be detected. A "quenching gas" is usually added to the filler gas so that these avalanches will dissipate over time and not continue indefinitely, which would cause inaccuracy or electronic failure.  1, record 1, English, - quenching%20gas

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Un des constituants du mélange gazeux de remplissage d'un tube compteur de Geiger-Müller dont le rôle est de provoquer l'auto-extinction de la décharge [...]  1, record 1, French, - gaz%20de%20coupage

Record number: 1, Textual support number: 1 OBS

[...] ce sont en général des vapeurs organiques.  1, record 1, French, - gaz%20de%20coupage

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

The radiation is measured by measuring the number of pulses per time unit coming from the tube, which is proportional to the intensity of the radiation to be measured. The quenching gas in the radiation detector tubes is quenching after the elapse of a certain period of time the ionic current. This time is called the dead time of the G-M tube, during which the tube is unable to react to a possibly, arriving new quantum of radiation.  1, record 2, English, - quenching%20ggs

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Élément constitutif du mélange gazeux destiné au remplissage d'un tube compteur de Geiger-Müller, qui accélère l'auto-excitation de la décharge.  2, record 2, French, - gaz%20de%20coupage

Record 2,  Textual support,  Spanish