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Assessment of DEMO Reactors for Fusion Power Utilization
九州大学学術情報リポジトリ Kyushu University Institutional Repository Assessment of DEMO Reactors for Fusion Power Utilization Elserafy, Hatem Interdisciplinary Graduate school of Engineering Sciences, Kyushu University https://doi.org/10.5109/2174854 出版情報:Evergreen. 5 (4), pp.18-25, 2018-12. Green Asia Education Center バージョン:published 権利関係: EVERGREEN Joint Journal of Novel Carbon Resource Sciences & Green Asia Strategy, Vol. 05, Issue 04, pp.18-25, December 2018 (Review Article) Assessment of DEMO Reactors for Fusion Power Utilization Hatem Elserafy Interdisciplinary Graduate school of Engineering Sciences, Kyushu University, Japan *Author to whom correspondence should be addressed, E-mail: [email protected] (Received November 15, 2018; accepted December 27, 2018). Given the undeniable climate change caused by global warming, decreasing the carbon footprint by using alternative energy sources became necessary. Thermonuclear fusion energy is one of the strongest candidates when it comes to alternative energy sources since it is safe, has negligible carbon footprint and its yield is incomparable to any other alternative. Credential as fusion performance may be; feasibility and economic attractiveness are something to be considered. The next stage fusion reactors are called DEMOnstration (DEMO) and are being assessed by various sources in terms of performance. In this work, DEMO fusion reactors are to be reviewed and their specifications are to be analyzed in terms of feasibility, while demonstrating how the tritium fueling stage not only presents a challenge for calculating fusion power costs, but also that fusion energy requires further R&D before it can be integrated into the power grid. Keywords: thermonuclear fusion, DEMO, TBR. 1. Introduction thought of as the most promising unexploited energy source [6]. -
7 Upgrade to the Vulcan Laser System to Support the TAW Upgrade
LASER SCIENCE AND DEVELOPMENT I Vulcan 7 Upgrade to the Vulcan laser system to support the TAW upgrade Contact [email protected] B. T. Parry, T. B. Winstone, P. N. Anderson, A. J. Frackiewicz, M. Galimberti, S. Hancock, C. Hernandez-Gomez, A. K. Kidd, M. M. Notley, M. Read and C. Wise Central Laser Facility, STFC, Rutherford Appleton Laboratory, HSIC, Didcot, Oxon OX11 0QX, UK Introduction chains. One of the rod amplifier beam lines is split The Vulcan laser facility has recently been upgraded to into two to form beams 7 and 8, the other is split into deliver an additional short pulse beam to Target Area beams 1-6. Beams 7 and 8 are normally used as short West (TAW) [1]. This new beamline is capable of pulse (CPA) beamlines. operating in the same mode as the previously existing Modelling showed that the extra amplification needed one, at energies up to 100 J in 1 ps. It also allows the to deliver the increased energy could be carried out at laser to reach new, previously inaccessible regimes, smaller beam diameter while still keeping the B-integral with the capability to deliver up to 500 J in pulses of below three, the limit for what was acceptable for a 10 ps or longer (100ps max). 10 ps pulse. This meant that rod amplifiers, rather than The increase in the delivered energy was made possible large, costly disk amplifiers, could be used. An by the use of dielectric gratings for this new 10 ps additional 45 mm diameter rod amplifier was installed beamline. -
Overview of Versatile Experiment Spherical Torus (VEST)
Overview of Versatile Experiment Spherical Torus (VEST) Y.S. Hwang and VEST team March 29, 2017 CARFRE and CATS Dept. of Nuclear Engineering Seoul National University 23rd IAEA Technical MeetingExperimental on Researchresults and plans of Using VEST Small Fusion Devices, Santiago, Chille Outline Versatile Experiment Spherical Torus (VEST) . Device and discharge status Start-up experiments . Low loop voltage start-up using trapped particle configuration . EC/EBW heating for pre-ionization . DC helicity injection Studies for Advanced Tokamak . Research directions for high-beta and high-bootstrap STs . Preparation of long-pulse ohmic discharges . Preparation for heating and current drive systems . Preparation of profile diagnostics Long-term Research Plans Summary 1/36 VEST device and Machine status VEST device and Machine status 2/36 VEST (Versatile Experiment Spherical Torus) Objectives . Basic research on a compact, high- ST (Spherical Torus) with elongated chamber in partial solenoid configuration . Study on innovative start-up, non-inductive H&CD, high and innovative divertor concept, etc Specifications Present Future Toroidal B Field [T] 0.1 0.3 Major Radius [m] 0.45 0.4 Minor Radius [m] 0.33 0.3 Aspect Ratio >1.36 >1.33 Plasma Current [kA] ~100 kA 300 Elongation ~1.6 ~2 Safety factor, qa ~6 ~5 3/36 History of VEST Discharges • #2946: First plasma (Jan. 2013) • #10508: Hydrogen glow discharge cleaning (Nov. 2014) Ip of ~70 kA with duration of ~10 ms • #14945: Boronization with He GDC (Mar. 2016) Maximum Ip of ~100 kA • # ??: -
Re-Examining the Role of Nuclear Fusion in a Renewables-Based Energy Mix
Re-examining the Role of Nuclear Fusion in a Renewables-Based Energy Mix T. E. G. Nicholasa,∗, T. P. Davisb, F. Federicia, J. E. Lelandc, B. S. Patela, C. Vincentd, S. H. Warda a York Plasma Institute, Department of Physics, University of York, Heslington, York YO10 5DD, UK b Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH c Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, L69 3GJ, UK d Centre for Advanced Instrumentation, Department of Physics, Durham University, Durham DH1 3LS, UK Abstract Fusion energy is often regarded as a long-term solution to the world's energy needs. However, even after solving the critical research challenges, engineer- ing and materials science will still impose significant constraints on the char- acteristics of a fusion power plant. Meanwhile, the global energy grid must transition to low-carbon sources by 2050 to prevent the worst effects of climate change. We review three factors affecting fusion's future trajectory: (1) the sig- nificant drop in the price of renewable energy, (2) the intermittency of renewable sources and implications for future energy grids, and (3) the recent proposition of intermediate-level nuclear waste as a product of fusion. Within the scenario assumed by our premises, we find that while there remains a clear motivation to develop fusion power plants, this motivation is likely weakened by the time they become available. We also conclude that most current fusion reactor designs do not take these factors into account and, to increase market penetration, fu- sion research should consider relaxed nuclear waste design criteria, raw material availability constraints and load-following designs with pulsed operation. -
Fast Track Concept in the European Fusion Programme
JP0250524 JAERI-Conf 2002-010 IV. FAST TRACK CONCEPT IN THE EUROPEAN FUSION PROGRAMME Prof. Harald Bolt Director of Materials Research Division, Max-Planck-Institute for Plasma Physics Abstract Recently an expert meeting regarding a possible acceleration of the fusion programme with a view to energy production ("fast track") was held on the initiative of the EU Research Council. In the course of the discussions about the fast track programme, it has turned out that successful extraction of reactor grade heat and tritium from the blanket modules is essential in the ITER operation. In parallel with ITER, material development using a high intensity neutron source is essential to establish a database for licensing. The operation of a reactor combining DEMO and PROTO generations into a single step could be around 2030. 1. Introduction A reference roadmap has been discussed which leads from ITER to DEMO and PROTO fusion reactors in EU. Among these discussions, the significant role of fusion reactors as electrical power resources and their timely availability to society has been emphasized. From this view point, it has been proposed to demonstrate the feasibility of fusion energy within 20-30 years, the so called "fast track" programme. This means that demonstration of fusion energy will be in 2030, not in 2050 which was a conventional fusion program so fat. In the line with this scope, the Fast Track Working Group was rganized by the EU Research Council in November 2001, and reported the first assessment of the fast track schedule. In this paper, the main results of the working group are described as well as the materials development program which has to be carried out acc ordingly. -
A European Success Story the Joint European Torus
EFDA JET JETJETJET LEAD ING DEVICE FOR FUSION STUDIES HOLDER OF THE WORLD RECORD OF FUSION POWER PRODUCTION EXPERIMENTS STRONGLY FOCUSSED ON THE PREPARATION FOR ITER EXPERIMENTAL DEVICE USED UNDER THE EUROPEAN FUSION DEVELOPEMENT AGREEMENT THE JOINT EUROPEAN TORUS A EUROPEAN SUCCESS STORY EFDA Fusion: the Energy of the Sun If the temperature of a gas is raised above 10,000 °C virtually all of the atoms become ionised and electrons separate from their nuclei. The result is a complete mix of electrons and ions with the sum of all charges being very close to zero as only small charge imbalance is allowed. Thus, the ionised gas remains almost neutral throughout. This constitutes a fourth state of matter called plasma, with a wide range of unique features. D Deuterium 3He Helium 3 The sun, and similar stars, are sphe- Fusion D T Tritium res of plasma composed mainly of Li Lithium hydrogen. The high temperature, 4He Helium 4 3He Energy U Uranium around 15 million °C, is necessary released for the pressure of the plasma to in Fusion T balance the inward gravitational for- ces. Under these conditions it is pos- Li Fission sible for hydrogen nuclei to fuse together and release energy. Nuclear binding energy In a terrestrial system the aim is to 4He U produce the ‘easiest’ fusion reaction Energy released using deuterium and tritium. Even in fission then the rate of fusion reactions becomes large enough only at high JG97.362/4c Atomic mass particle energy. Therefore, when the Dn required nuclear reactions result from the thermal motions of the nuclei, so-called thermonuclear fusion, it is necessary to achieve u • extremely high temperatures, of at least 100 million °C. -
H-Mode Transition Physics Close to DN on MAST and Its Applications to Other Tokamaks
20th IAEA FUSION ENERGY CONFERENCE 1-6 November 2004 Vilamoura, Portugal Organized by the International Atomic Energy Agency Hosted by the Government of Portugal through: INSTITUTO SUPERIOR TÉCNICO Centro de Fusão Nuclear www.cfn.ist.utl.pt Book of Abstracts IAEA-CN-116 20th IAEA Fusion Energy Conference 2004 Book of Abstracts Contents Overview (OV) 1 OV/1-1 ·Overview of JT-60U Progress towards Steady-state Advanced Tokamak . 2 OV/1-2 ·Overview of JET results . 2 OV/1-3 ·Development of Burning Plasma and Advanced Scenarios in the DIII-D Tokamak 2 OV/1-4 ·Confinement and MHD stability in the Large Helical Device . 2 OV/1-5 ·Overview of ASDEX Upgrade Results . 3 OV/2-1 ·Overview of Zonal Flow Physics . 3 OV/2-2 ·Steady-state operation of Tokamaks: key physics and technology developments on Tore Supra. 3 OV/2-3 ·Progress Towards High Performance Plasmas in the National Spherical Torus Experiment (NSTX) . 4 OV/2-4 ·Overview of MAST results . 4 OV/2-5 ·Overview of Alcator C-Mod Research Program . 5 OV/3-1 ·Recent Advances in Indirect Drive ICF Target Physics . 5 OV/3-2 ·Laser Fusion research with GEKKO XII and PW laser system at Osaka . 5 OV/3-3 ·Direct-Drive Inertial Confinement Fusion Research at the Laboratory for Laser Energetics: Charting the Path to Thermonuclear Ignition . 5 OV/3-4 ·Acceleration Technology and Power Plant Design for Fast Ignition Heavy Ion Inertial Fusion Energy . 6 OV/3-5Ra ·Progress on Z-Pinch Inertial Fusion Energy . 6 OV/3-5Rb ·Wire Array Z pinch precursors, implosions and stagnation . -
Pulsed Power Science and Engineering
Department of Energy National Nuclear Security Administration Laboratory Residency Graduate Fellowship (DOE NNSA LRGF) Residency Opportunities at Lawrence Livermore National Laboratory Lawrence Livermore National Laboratory (LLNL) pairs multidisciplinary science and engineering with world-class experimental and computing resources to develop technical solutions to the most pressing national security problems of our time. Livermore's defining responsibility is ensuring the safety, security and reliability of the nation's nuclear deterrent without nuclear testing. As part of the Stockpile Stewardship Program, LLNL researchers are tackling the grand challenge of understanding the scientific details of nuclear weapons performance through nonnuclear tests and experimentally validated computer simulations. LLNL's national security mission is broader than stockpile stewardship, as dangers from nuclear proliferation and terrorism to energy shortages and climate change threaten both national security and global stability. Livermore's multidisciplinary science and engineering are being applied to achieve breakthroughs for counterterrorism and nonproliferation, defense and intelligence, domestic security and energy and environmental security. Lawrence Livermore offers fellowship opportunities in the following research areas: Pulsed power science and engineering Pulsed power is a critical technology at LLNL, supporting a broad range of applications relating to national security and fundamental science. The pulsed power systems at LLNL range from low-energy ultra-fast pulsers used in diagnostic systems, to explosively-driven flux compression generators, to the 400 million joule pulsed power driver for the National Ignition Facility (NIF) - the world’s largest laser system. For more than 50 years LLNL researchers have been actively researching, developing, designing, instrumenting and executing experiments on pulsed power systems for multiple programs to support high-energy-density physics experiments in support of the U.S. -
Nd Lu Caf2 for High-Energy Lasers Simone Normani
Nd Lu CaF2 for high-energy lasers Simone Normani To cite this version: Simone Normani. Nd Lu CaF2 for high-energy lasers. Physics [physics]. Normandie Université, 2017. English. NNT : 2017NORMC230. tel-01689866 HAL Id: tel-01689866 https://tel.archives-ouvertes.fr/tel-01689866 Submitted on 22 Jan 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THESE Pour obtenir le diplôme de doctorat Physique Préparée au sein de l’Université de Caen Normandie Nd:Lu:CaF2 for High-Energy Lasers Étude de Cristaux de CaF2:Nd:Lu pour Lasers de Haute Énergie Présentée et soutenue par Simone NORMANI Thèse soutenue publiquement le 19 octobre 2017 devant le jury composé de M. Patrice CAMY Professeur, Université de Caen Normandie Directeur de thèse M. Alain BRAUD MCF HDR, Université de Caen Normandie Codirecteur de thèse M. Jean-Luc ADAM Directeur de Recherche, CNRS Rapporteur Mme. Patricia SEGONDS Professeur, Université de Grenoble Rapporteur M. Jean-Paul GOOSSENS Ingénieur, CEA Examinateur M. Maurizio FERRARI Directeur de Recherche, CNR-IFN Examinateur Thèse dirigée par Patrice CAMY et Alain BRAUD, laboratoire CIMAP Université de Caen Normandie Nd:Lu:CaF2 for High-Energy Lasers Thesis for the Ph.D. -
Fusion Rockets for Planetary Defense
| Los Alamos National Laboratory | Fusion Rockets for Planetary Defense Glen Wurden Los Alamos National Laboratory Exploratory Plasma Research Workshop Feb 26, 2016 LA-UR-16-21396 LA-UR-15-xxxx UNCLASSIFIED Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA April 2014 | UNCLASSIFIED | 1 | Los Alamos National Laboratory | My collaborators on this topic: T. E. Weber1, P. J. Turchi2, P. B. Parks3, T. E. Evans3, S. A. Cohen4, J. T. Cassibry5, E. M. Campbell6 . 1Los Alamos National Laboratory . 2Santa Fe, NM . 3General Atomics . 4Princeton Plasma Physics Laboratory . 5University of Alabama, Huntsville . 6LLE, University of Rochester, Rochester Wurden et al., Journal of Fusion Energy, Vol. 35, 1, 123 (2016) UNCLASSIFIED Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA April 2014 | UNCLASSIFIED | 2 | Los Alamos National Laboratory | How many ways is electricity made today? Primary Energy Source Nominally CO2 Free Current capacity (%) Expected Lifetime (yrs) Natural Gas no 100 Coal no 80.6 400 Oil no < 50 Biomass neutral 11.4 > 400 Wind yes 0.5 > 1000 Solar photovoltaic yes 0.06 > 1000 Solar thermal yes 0.17 > 1000 Hydro yes 3.3 > 1000 Wave/Tidal yes 0.001 > 1000 Geothermal yes 0.12 > 1000 Nuclear fission yes 2.7 > 400 [i] REN21–Renewable Energy Policy Network for the 21st Century Renewables 2012–Global Status Report, 2012, http://www.map.ren21.net/GSR/GSR2012.pdf , http://en.wikipedia.org/wiki/Energy_development UNCLASSIFIED Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA April 2014 | UNCLASSIFIED | 3 | Los Alamos National Laboratory | What is the most important product that fusion could deliver? . -
Italy . Frascati Tokamak Upgrade . Superconductors
it enea the italian fusion programme is coordinated by EnEa (agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile). EnEa works with linked third parties: universities, research institutes, and industries. institutes carrying out fusion research along with EnEa include plasma physics institute (ifp), Consorzio rfX, national research Council of italy (Cnr), national institute for nuclear physics (infn) and university of padova. about 600 professionals work on fusion research in institutions across italy. enea • EnEa centre at frascati houses the frascati tokamak upgrade (ftu) tokamak, a high- magnetic-field, high-plasma-density tokamak; it investigates radio-frequency plasma heating, control techniques and plasma-wall interaction with liquid metal walls • frascati neutron generator, a medium intensity 14-mev neutron generator, is used for experimental validation of fusion nuclear data and codes. • studies and development of superconductor materials are carried out at the EnEa superconductivity laboratory • EnEa’s high heat flux Components laboratory set up and tested the manufacturing process and a dedicated facility for the fabrication of full scale itEr divertor target prototypes • Design and experimental validation of liquid metal technology for breeding blankets can be done at EnEa centre at Brasimone. ConsoRZio RFX • Consorzio rfX staff are involved in the scientific exploitation and upgrade of the rfX-mod experiment, a flexible device which can be operated both as a high current reversed field pinch -
Oak Ridge National Laboratory Fusion Research Capabilities
Oak Ridge National Laboratory Fusion Research Capabilities D. Youchison (Fusion Energy Division) 2020 INFUSE Workshop November 23, 2019 ORNL is managed by UT-Battelle, LLC for the US Department of Energy ORNL (X-10) began as a nuclear reactor laboratory specializing in isotope production in 1943 2 ORNL grew into a leading nuclear science laboratory Trained nuclear Contributed Examined Designed, built, Developed engineers to the design the safety, and operated techniques at the Oak Ridge of naval nuclear environmental, 13 experimental for nuclear fuel School of Reactor propulsion and waste reactors reprocessing Technology systems disposal challenges of nuclear energy ORSORT established ORNL’s Geneva reactor ORNL’s Low ORNL’s Bulk Shielding by Alvin Weinberg exhibited at UN Intensity Test Reactor, 1950–1991 and Hyman conference on the Reactor–First visible Rickover, 1950 Peaceful Uses of Atomic Cerenkov glow, 3 Energy, 1955 1950 ~4600 staff members Oak Ridge National Laboratory Thomas Zacharia, Laboratory Director Communications: David Keim Partnerships: TBD Counterintelligence: Selin Warnell Office of Institutional Planning: Ken Tobin Internal Audit: Gail Lewis Office of Research Excellence: Moody Altamimi Michelle Buchanan Jeff Smith General Counsel: David Mandl Deputy for Science and Technology Deputy for Operations Office of Integrated Performance Management: Brian Weston Computing and Energy and National Neutron Nuclear Science Physical Exascale Second US ITER Computational Environmental Security Sciences Sciences and Engineering Sciences