Acceleratordriven subcritical reactor system ads for. Etwg on accelerator driven systems ads considered, in its final report 8, that the physics of spallation and of energy deposition. Preliminary design studies of an experimental accelerator. Nuclear instruments and methods in physics research. Pdf this paper reflects the scopes of accelerator driven system ads based nuclear energy, as a reliable source of electric energy. Satyamurthys talk on thermal hydraulics of heavy liquid metal target for ads. Accelerator driven system ads subcritical nuclear reactors are under development around the world. As an example, if the power gain is 55, it can result in an output electric power of. An accelerator driven system myrrha dirk vandeplassche cern accelerator school. The white paper a working group was tasked through doeohep witha working group was tasked through doeohep with producing a white paper on accelerator and target technology for accelerator driven systems ads the white paper was intended to address the technical requirements for ads the current status of accelerator target technology with respect tothe current status of accelerator. Toshinobu sasa and hiroyuki oigawa jparc center, japan atomic energy agency, ibaraki 3191195, japan received 31 may 20 accepted 30 may 2014 after the fukushima nuclear accident, reduction of radioactive wastes got much attention. Design of an acceleratordriven system for the destruction. Accelerator driven systems are widely considered as promising devices for the transmutation of nuclear waste, as well as useful schemes for thbased energy.
Accelerator driven systems for thorium utilisation in india. Accelerator driven systems for nuclear waste transmutation charles d. Satyamurthy and amar sinha bhabha atomic research centre, mumbai, india international thorium energy conference october 2731, 20 cern in geneva, switzerland. Transients inside an ads can be analyzed numerically by solving the timedependent neutron transport equation directly, but this is an expensive method. Acceleratordriven transmutation and energy production. Chinas accelerator driven subcritical system ads program. An acceleratordriven subcritical reactor is a nuclear reactor design formed by coupling a substantially subcritical nuclear reactor core with a highenergy proton accelerator. Accelerator driven systems ads as for breeders, the idea of accelerator driven subcritical systems also goes back to the 1950s, but no real need was seen 5. Acceleratordriven systems ads and fast reactors fr in. In adanes, the ideal utilization rate of nuclear fuel will be 95%, and the final disposal of nuclear waste will be. Evaluated nuclear data files for accelerator driven. The clarification of the role and added value of the accelerator driven system ads with regard to path b, to be called the transmutation path, is the principal purpose of the present study. The first conference was held last year at virginia tech, in blacksburg, virginia. Furthermore, ads benefit from vitally important advantage of employing thorium as a new.
Source efficiency and highenergy neutronics in acceleratordriven systems per seltborg doctoral thesis. Read the latest articles of nuclear instruments and methods in physics research section a. Accelerator driven subcritical reactor system figure 3. Technology and components of acceleratordriven systems. On operational and startup transients in an accelerator. A panoply of european accelerators is utilised to provide complete. Accelerator driven systems for thorium utilisation in india s. It has successfully accelerated output beams of 100 ma in cw operation. Download neutronic studies in support of accelerator driven systems. Accelerator driven systems and their applications 1. As the reader will quickly ascertain, there are a wide range of accelerator driven neutron sources in operation or being built across the world.
Because accelerator driven systems do not require fuels containing uranium or thorium, they are more efficient at. To address these challenges, we propose an acceleratordriven advanced nuclear energy system adanes, consisting of a burner system and a fuel recycle system. The electron accelerator driven system ads was investigated in the study for nuclear waste transmutation as an alternative to proton based ads. A study on the feasibility of electronbased accelerator. Studies have shown that the repository longterm radiological risk is from the longlived transuranics and the fission products tc99 and i129, thermal loading concerns arise. Research opportunities with compact acceleratordriven. School on physics, technology and applications of accelerator driven systems ads harphool kumawat 19 30 november 2007 nuclear physics division, bhabha atomic research centre, 400085 trombay india background information for p. These systems are currently under investigation to be used as minor actinide burners and also as transmuters of long lived fission products. Preliminary design studies of an experimental acceleratordriven system. It could use thorium as a fuel, which is more abundant than uranium the neutrons needed for sustaining the fission process would be provided by a particle accelerator producing neutrons by spallation. Disposition of nuclear waste using subcritical accelerator. Carminati european organization for nuclear research, cern, geneva, switzerland lectures given at the workshop on hybrid nuclear systems for energy production. Schematic of accelerator driven subcritical reactor system for nuclear energy generation.
New nuclear data libraries for lead and bismuth and their impact on acceleratordriven systems design article pdf available july 2007 with 253 reads how we measure reads. A subcritical reactor is a nuclear fission reactor concept that produces fission without achieving criticality. Acceleratordriven system design concept for disposing of spent nuclear fuels 215. Pdf neutronic studies in support of acceleratordriven.
Medeiros roma o, sck cen, mol, belgium abstract accelerator driven systems are widely considered as promising devices for the transmutation of nuclear waste, as well as useful schemes for thbased energy production. They will be intense sources of free, 3050 mev antimuon decay at rest antimuon neutrinos. It was mainly in the 1990s with the decreasing public acceptance of nuclear energy in general, and of higher awareness of safety risks as well as unresolved issues with. Pdf understanding accelerator driven system ads based. Pdf in this chapter, the acceleratordriven systems ads are described. Driven by the national demand for the safe disposal of nuclear waste as well as the potential for nuclear fuel breeding and advanced energy generation, the chinese academy of sciences cas initiated the accelerator driven subcritical system ads program in 2011 under the framework of a strategic technology pilot project. Nuclear waste transmutation is an important option for the development of advanced fuel cycle and effective nuclear waste management. External source effects and neutronics in accelerator. Since ads are closely related to msr, several topics are described. Concept of an acceleratordriven advanced nuclear energy. Accelerator and target technology for accelerator driven.
Instead of sustaining a chain reaction, a subcritical reactor uses additional neutrons from an outside source. Pdf new nuclear data libraries for lead and bismuth and. Ads or accelerator driven transmutation of waste atw consists of a high power proton accelerator, a heavy metal spallation target that. The potential role of accelerator driven systems in the u. Read online neutronic studies in support of accelerator driven systems. The analysis of transients in accelerator driven systems is an important aspect to assess the safety of the reactor. Neutrino physics with accelerator driven subcritical. The aim of this study is to understand the ads based green nuclear energy as a part of understanding sustainable energy development in order to meet future energy needs as well as to save our green earth. One uses neutrons provided by a nuclear fusion machine, a concept known as a fusionfission hybrid. Crosssection evaluations to 150 mev for accelerator. Understanding accelerator driven system ads based green. Whether youve loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them.
Simulation of an accelerator driven subcritical core with. Accelerator driven systems adss may offer new prospects and advantages for the transmutation of such high level nuclear waste. Other readers will always be interested in your opinion of the books youve read. Disposition of nuclear waste using subcritical accelerator driven systems showing 14 of 11 pages in this article. The subcriticality level plays an important rule in the control of the system. Acceleratordriven system and other schemes for spent fuel. Neutronics of minor actinide burning accelerator driven systems with ceramic fuel accepted nuclear technology january 2005. All books are in clear copy here, and all files are secure so dont worry about it. The leda rfq is a part of the frontend demonstrator for a future accelerator driven system, for example to transmute nuclear waste. Schematic diagram of accelerator molten salt breeder amsb. Somewhat smaller, but not unimportant, are projects which can be grouped as spallation neutron.
Yang on the performance of point kinetics for the analysis accelerator driven systems nuclear science and engineering, 149, 298311 2005. Energy generation and transmutation of nuclear waste status report. In the hindas programme, nuclear data in the 202 000 mev range are evaluated by means of a combination of nuclear models and wellselected intermediate and highenergy experiments. Review of accelerator driven heavy ion nuclear fusion. The accelerator driven system ads is a new type of reactor which produces power even though it remains subcritical throughout its life. Neutronic studies in support of accelerator driven systems. Neutronic studies in support of acceleratordriven systems. This way, the long term hazards of storage are eliminated, and energy can be produced from essentially free fuel. Accelerator driven systems ads attract worldwide attention owing to their superior aspects and their ability to burn minor actinides ma and fission products in conjunction to their ability to transmute hlw and to produce energy. Advances in accelerator physics and engineering make it possible to reuse the nuclear waste, rich in actinides, as a fuel for a new kind of reactor which uses a particle accelerator. Challenges and opportunities of accelerator driven systems. Abstractnew accelerator driven technologies that utilize spallation neutrons, such as the production of tritium and the transmutation of radioactive waste, require accurate nuclear data to model the performance of the targetblanket assembly and to predict neutron production, activation, heating, shielding requirements, and material damage.
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