Sony BMG ci riprova, con un nuovo store

Re: Che palle...
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mikia quanta ingoranza... il nucleare che brucia
le scorie
(rotfl)(rotfl)(rotfl)

ma da dove vieni dal paleolitico... informati
prima di dire
vaccate.Ma che ci fate con internet ? Ma svegliatevi, Google usatelo per cercare le notizie, non solo quello che vi viene inculcato da giornalisti o esponenti di questo o quel partito! : --------http://f40.iaea.org/worldatom/Periodicals/Bulletin/Bull392/arkhipov.html Future nuclear energy systems:Generating electricity, burning wastesMerging the technology of accelerators with reactors holds the promise of producing energy, and incinerating plutonium and radioactive wastesby Viktor ArkhipovOne of the greatest challenges in the use of nuclear energy is the highly radioactive waste which is generated during power production. It must be dealt with safely and effectively. While technical solutions exist, including deep geological repositories, progress in the disposal of radioactive waste has been influenced, and in many cases delayed, by public perceptions about the safety of the technology. One of the primary reasons for this is the long life of many of the radioisotopes generated from fission, with half-lives on the order of 100,000 to a million years. Problems of perception could be reduced to an essential degree if there were a way to burn or destroy the most toxic long-lived radioactive wastes during the production of energy.A new technological option, or rather a viable development of earlier ideas, has been introduced recently. It merges accelerator and fission reactor technologies into a single system that has the potential to efficiently generate electricity from nuclear fission and/or transmute the long-lived radioactive wastes. In its simplest form, this accelerator-driven energy production concept uses neutrons produced by a high-energy proton beam to drive a blanket assembly containing fissionable fuel and radioactive wastes. The blanket assembly is like a reactor in that fission is the source of power. Unlike a conventional reactor, however, it is sub-critical and without the accelerator cannot sustain a chain-reaction. The fuel for this system could be uranium, plutonium, or thorium.Even as it destroys highly radioactive wastes, the accelerator-driven system would help to meet rising energy needs by producing electricity, the most convenient and versatile form of energy. Demand for all energy sources is going to increase over the next two decades, if only to meet the needs of the world's growing population, which the United Nations estimates will approach 8.5 billion people by the year 2025. [...]Challenges and opportunitiesMany technical and engineering questions remain to be explored and answered before the potential of the ADS concept can be demonstrated. The work ahead will require greater international co-operation to pool expertise and resources.In many respects, accelerator-driven systems are worth pursuing. By producing electricity, they can contribute to the world's growing energy needs, and by incinerating plutonium and highly radioactive wastes, they can contribute to the goals of environmental protection and safe waste management. Some types of ADS being developed can produce energy from the abundant element thorium in a safe, sub-critical blanket assembly with a minimal nuclear waste stream. Beyond this, there is the promise of systems with the goal to burn weapons plutonium and to incinerate spent nuclear fuel, including its major fission products, from commercial nuclear power plants.Presently a number of national and regional scientific institutes and laboratories around the world are engaged in research and development of accelerator-driven systems. At the global level, the IAEA's programmes in this field are helping to promote the exchange of information and co-operative research on specific topics. The work is indicative of the heightened interest in ADS technology as a practical tool for contributing to international energy and environmental goals.Mr. Arkhipov is a consultant in the IAEA Division of Nuclear Power and the Fuel Cycle, Nuclear Power Technology Development Section. ---------