The xenon (Xe) is one of noble gases of the periodic table of the elements, that exists in the atmosphere. It was discovered by W. Ramsay and M. Travers in 1898.
Applied to the illumination, the xenon lights have been the following evolution to the halogenous lamps in the illumination devices of the vehicles. They were introduced for the first time for the dipped headlights in 1991 by Osram in BMW BMW Series 7. The light inside these lamps is generated thanks to a voltaic arc of approximately 30,000 volts between two tungsten electrodes that are located within a glass camera. This camera contains in its interior the own gas xenon mixed with other halogenizadas metal salts. Based on the chemical composition of the mixture, the color of the light will be more or less bluish. For the ignition one needs an impulse of high voltage, that it creates it by means of an electronic electrical ballast. This device is in charge immediately afterwards of the intensity control of the light.
The advantages of the xenon lights against halogenous ones are the following: The intensity of radiation is up to three times superior with the same consumption of current. The reach and the zone of dispersion by means of the lenses of the projector are greater reason why a greater zone of the road can be illuminated. The life utility of a xenon lamp is placed surroundings to the 2,500 hours which is equivalent to five times more than a halogenous lamp.
Applied like anesthetic the gas xenon, is “an inexhaustible and ecological” element, since it is in the atmosphere, and whose main advantage is that it does not have residual effects in the patient, who wide-awake of fast form and “without hangover sensation” since the patient expels the same amount that receives for being slept. The Xe besides producing analgesia has the capacity to produce hypnosis and amnesia. The benefits of the use of the gas Xe like anesthetic are that is extracted from the air and is 100% natural. It is an inert gas that doesnt metabolize, reason why the recovery is faster. It has a low solubility and so it makes a faster elimination. He is not toxic and it does not affect to the environment when it is freed to the atmosphere: it does not contribute to the destruction of the ozone layer nor to the greenhouse effect.
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