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1 облучение продуктов питания
облучение продуктов питания
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
food irradiation
The most recent addition to food preservation technologies is the use of ionizing radiation, which has some distinct advantages over conventional methods. With irradiation, foods can be treated after packaging, thus eliminating post-processing contamination. In addition, foods are preserved in a fresh state and can be kept longer without noticeable loss of quality. Food irradiation leaves no residues, and changes in nutritional value due to irradiation are comparable with those produced by other processes. Irradiation is the process of applying high energy to a material, such as food, to sterilize or extend its shelf-life by killing microorganisms, insects and other pests residing on it. Sources of ionizing radiation that have been used include gamma rays, electron beams and X-rays. Gamma rays are produced by radioactive isotopes such as Cobalt-60. Electron beams are produced by linear accelerators, which themselves are powered by electricity. The dose applied to a product is the most important factor of the process. At high doses, food is essentially sterilized, just as occurs in canning. Products so treated can be stored at room temperature almost indefinitely. Controversial and banned in some countries. (Source: IFSE / VCN)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-французский словарь нормативно-технической терминологии > облучение продуктов питания
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2 цезий
цезий
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
caesium
A soft silvery-white and highly reactive metal belonging to the alkali group of metals. It is a radiation hazard, because it can occur in two radioactive forms. Caesium-134 is produced in nuclear reactors, not directly by fission, but by the reaction. It emits beta- and gamma-radiation and has a half-life of 2.06 years. Caesium-137 is a fission product of uranium and occurs in the fallout from nuclear weapons. It emits beta- and gamma-rays and has a half-life of 30 years. Caesium-137 was the principal product released into the atmosphere, and hence the food chain, from atmospheric testing of nuclear weapons and from the Windscale fire and Chernobyl nuclear accidents. After the Chernobyl accident, which spread a radiation cloud across Europe, the European Commission proposed new and more restrictive limits on levels of caesium in food and drinking water. (Source: WRIGHT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-французский словарь нормативно-технической терминологии > цезий
См. также в других словарях:
gamma rays — gamma radiation or gamma rays noun A penetrating radiation given off by radium and other radioactive substances • • • Main Entry: ↑gamma * * * noun [plural] : powerful invisible rays that are sent out from some radioactive substances called also… … Useful english dictionary
gamma rays — (also gamma radiation) ► PLURAL NOUN ▪ penetrating electromagnetic radiation of shorter wavelength than X rays … English terms dictionary
gamma rays — gamma rays. См. гамма излучение. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) … Молекулярная биология и генетика. Толковый словарь.
gamma rays — gamma ,rays noun plural SCIENCE a type of RADIATION with a very short WAVELENGTH, that can pass through solid objects … Usage of the words and phrases in modern English
gamma rays — gama spinduliuotė statusas T sritis fizika atitikmenys: angl. gamma radiation; gamma rays; γ rays vok. Gamma Strahlen, m; Gamma Strahlung, f; γ Strahlen, m rus. гамма излучение, n; гамма лучи, m; γ лучи, m pranc. gamma rayonnement, m; rayonnement … Fizikos terminų žodynas
gamma rays — electromagnetic radiation of wavelengths shorter than X rays, given off by certain radioactive substances. Gamma rays used in nuclear medicine tend to have higher energy than diagnostic X rays, with greater penetration; they are harmful to living … Medical dictionary
gamma rays — electromagnetic radiation of wavelengths shorter than X rays, given off by certain radioactive substances. Gamma rays used in nuclear medicine tend to have higher energy than diagnostic X rays, with greater penetration; they are harmful to living … The new mediacal dictionary
gamma rays — gama spinduliuotė statusas T sritis chemija apibrėžtis Trumpųjų bangų (λ = 0,1 nm) elektromagnetinė spinduliuotė. atitikmenys: angl. gamma radiation; gamma rays; gamma particle radiation rus. гамма излучение; гамма лучи … Chemijos terminų aiškinamasis žodynas
gamma rays — N PLURAL Gamma rays are a type of electromagnetic radiation that has a shorter wavelength and higher energy than X rays … English dictionary
gamma rays — gama spinduliuotė statusas T sritis ekologija ir aplinkotyra apibrėžtis γ trumpųjų bangų (bangos ilgis λ<4,10⁻¹⁰ m) elektromagnetinė spinduliuotė – fotoninė diskrečiojo spektro spinduliuotė, susidaranti kintant energinėms atomų branduolių… … Ekologijos terminų aiškinamasis žodynas
gamma rays — gama spinduliai statusas T sritis chemija apibrėžtis Labai siauras gama spinduliuotės pluoštas. atitikmenys: angl. gamma rays rus. гамма лучи … Chemijos terminų aiškinamasis žodynas
