LPP Focus Fusion Report January 3, 2013
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Simultaneous Ultra-Fast Imaging and Neutron Emission from a Compact Dense Plasma Focus Fusion Device
instruments Article Simultaneous Ultra-Fast Imaging and Neutron Emission from a Compact Dense Plasma Focus Fusion Device Nathan Majernik, Seth Pree, Yusuke Sakai, Brian Naranjo, Seth Putterman and James Rosenzweig * ID Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, CA 90095, USA; [email protected] (N.M.); [email protected] (S.P.); [email protected] (Y.S.); [email protected] (B.N.); [email protected] (S.P.) * Correspondence: [email protected]; Tel.: +310-206-4541 Received: 12 February 2018; Accepted: 5 April 2018; Published: 11 April 2018 Abstract: Recently, there has been intense interest in small dense plasma focus (DPF) devices for use as pulsed neutron and X-ray sources. Although DPFs have been studied for decades and scaling laws for neutron yield versus system discharge current and energy have been established (Milanese, M. et al., Eur. Phys. J. D 2003, 27, 77–81), there are notable deviations at low energies due to contributions from both thermonuclear and beam-target interactions (Schmidt, A. et al., Phys. Rev. Lett. 2012, 109, 1–4). For low energy DPFs (100 s of Joules), other empirical scaling laws have been found (Bures, B.L. et al., Phys. Plasmas 2012, 112702, 1–9). Although theoretical mechanisms to explain this change have been proposed, the cause of this reduced efficiency is not well understood. A new apparatus with advanced diagnostic capabilities allows us to probe this regime, including variants in which a piston gas is employed. Several complementary diagnostics of the pinch dynamics and resulting X-ray neutron production are employed to understand the underlying mechanisms involved. -
UC San Diego Center for Energy Research, Lppfusion to Collaborate on Fusion Energy Research
Focus Fusion Report October 17, 2017 Summary: • UC San Diego CER to Collaborate • Two More DPF Groups Aim to Use pB11 in 2018 • IEEE Spectrum Reports on LPPFusion • Former Fusion Chief Advocates pB11 in Physics Today UC San Diego Center for Energy Research, LPPFusion to Collaborate on Fusion Energy Research The ideal energy source is the goal of a new collaboration between the Center for Energy Research (CER) at UC San Diego and LPPFusion, Inc. The collaboration, formalized with an agreement on October 2, aims at the development of the dense plasma focus (DPF) device for fusion energy. “The alternate fusion schemes offer a potential route to fusion energy that could be faster and much cheaper than other approaches," explains CER Director, Farhat N. Beg. “LPPFusion is a leader in this field and will make available to CER its research data and expertise to help us set up our own DPF facility at UC San Diego.” LPPFusion’s FF-1 device is one of only a few mega-ampere DPFs in the world. Our research in the coming year will involve the first experiments using hydrogen-boron fuel. This fuel produces energy in the form of charged particles only, not neutrons, which both eliminates radioactive waste and makes possible inexpensive direct conversion of energy to electricity. “The collaboration with the Center for Energy Research will help us to better analyze and understand our data,” said LPPFusion President and Chief Scientist Eric J. Lerner. “Their expertise in plasma simulation will aid our efforts in modeling our experiments. We also expect that, once their own DPF is functioning, we can perform joint experiments that will help demonstrate how the DPF energy output scales with energy input. -
Revamping Fusion Research Robert L. Hirsch
Revamping Fusion Research Robert L. Hirsch Journal of Fusion Energy ISSN 0164-0313 Volume 35 Number 2 J Fusion Energ (2016) 35:135-141 DOI 10.1007/s10894-015-0053-y 1 23 Your article is protected by copyright and all rights are held exclusively by Springer Science +Business Media New York. This e-offprint is for personal use only and shall not be self- archived in electronic repositories. If you wish to self-archive your article, please use the accepted manuscript version for posting on your own website. You may further deposit the accepted manuscript version in any repository, provided it is only made publicly available 12 months after official publication or later and provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be accompanied by the following text: "The final publication is available at link.springer.com”. 1 23 Author's personal copy J Fusion Energ (2016) 35:135–141 DOI 10.1007/s10894-015-0053-y POLICY Revamping Fusion Research Robert L. Hirsch1 Published online: 28 January 2016 Ó Springer Science+Business Media New York 2016 Abstract A fundamental revamping of magnetic plasma Introduction fusion research is needed, because the current focus of world fusion research—the ITER-tokamak concept—is A practical fusion power system must be economical, virtually certain to be a commercial failure. Towards that publically acceptable, and as simple as possible from a end, a number of technological considerations are descri- regulatory standpoint. In a preceding paper [1] the ITER- bed, believed important to successful fusion research. -
Focus Fusion: Transformative Energy Technology
Focus Fusion: Transformative Energy Technology Lawrenceville Plasma Physics, Inc. Derek Shannon | [email protected] | http://LPPhysics.com Focus Fusion: Transformative Energy Technology Lawrenceville Plasma Physics, Inc. Derek Shannon| [email protected] | http://LPPhysics.com Investor Highlights • Market: Baseload electric generation – Valuable spin-offs in NDI, medical isotopes • Best results with most capital efficient tech – $2M+ into facility opened 2009, record fusion yields • Closest to game-changing breakthrough – <$2M, this year, straightforward engineering • Proven team – 50+ years biz/tech experience, with unique expertise • US/Oz patent issued, worldwide pending • Strong shareholder’s agreement, traction – 40 private investors, with Abell Foundation • Exit: IPO or buy back upon commercialization Competition illustrates key advantages for LPP TriAlpha, Polywell, LPP Aneutronic fusion Nat’l Ignition Facility, Iter, General Fusion D-T fusion B&W mPower, NuScale, Terrapower, Areva Fission Aneutronic: No neutrons → No $$$ turbines • Direct conversion to electricity • Large reduction in costs • Abundant fuel: – Hydrogen and Boron Safe, nothing to run away NO radioactive waste Worth a try, goshdarnit! What is Focus Fusion? Controlled Nuclear Fusion using Dense Plasma Focus + Hydrogen-Boron (Aneutronic) Fuel But is Focus Fusion HOT? Yes, A patented, low-cost approach… …backed by peer-reviewed research This beam means business Meet Focus Fusion – 1 • 12 capacitor bank • Stored energy – 115 kJ • Capacitor potential – 45 kV • Goal -
Compact Fusion Reactors
Compact fusion reactors Tomas Lind´en Helsinki Institute of Physics 26.03.2015 Fusion research is currently to a large extent focused on tokamak (ITER) and inertial confinement (NIF) research. In addition to these large international or national efforts there are private companies performing fusion research using much smaller devices than ITER or NIF. The attempt to achieve fusion energy production through relatively small and compact devices compared to tokamaks decreases the costs and building time of the reactors and this has allowed some private companies to enter the field, like EMC2, General Fusion, Helion Energy, Lockheed Martin and LPP Fusion. Some of these companies are trying to demonstrate net energy production within the next few years. If they are successful their next step is to attempt to commercialize their technology. In this presentation an overview of compact fusion reactor concepts is given. CERN Colloquium 26th of March 2015 Tomas Lind´en (HIP) Compact fusion reactors 26.03.2015 1 / 37 Contents Contents 1 Introduction 2 Funding of fusion research 3 Basics of fusion 4 The Polywell reactor 5 Lockheed Martin CFR 6 Dense plasma focus 7 MTF 8 Other fusion concepts or companies 9 Summary Tomas Lind´en (HIP) Compact fusion reactors 26.03.2015 2 / 37 Introduction Introduction Climate disruption ! ! Pollution ! ! ! Extinctions Ecosystem Transformation Population growth and consumption There is no silver bullet to solve these issues, but energy production is "#$%&'$($#!)*&+%&+,+!*&!! central to many of these issues. -.$&'.$&$&/!0,1.&$'23+! Economically practical fusion power 4$(%!",55*6'!"2+'%1+!$&! could contribute significantly to meet +' '7%!89 !)%&',62! the future increased energy :&(*61.'$*&!(*6!;*<$#2!-.=%6+! production demands in a sustainable way. -
Frontiers in Commercializing Fusion Development: the New Landscape of Companies Investing in Fusion Worldwide
PrincetonFUSION SYSTEMS Frontiers in Commercializing Fusion Development: The New Landscape of Companies Investing in Fusion Worldwide Dr. Octopus confronts a plasma instability in Artist’s rendering of the SPARC the film Spider-Man 2 (2004) experiment, Commonwealth Fusion Systems Talk Scope Introduction to thermonuclear fusion Why now? Models, hardware, economy, and new government programs Overview of existing fusion research efforts, including a dozen private companies Cutting through the hype: what to expect in the future PrincetonFUSION 2 SYSTEMS 2/13/20 Introduction to Thermonuclear Fusion Fusion is the process of combining small atomic nuclei (hydrogen) into large atomic nuclei (helium). This releases energy. Fusion is the opposite of fission, in which large atomic nuclei (uranium) split into small atomic nuclei. This releases energy. Fusion occurs naturally in the core of stars. Our very own sun is powered by fusion. The sun has a big advantage: 250 billion atmospheres of pressure. We may never match this parameter. The sun is powered by natural Our advantages: We can make material nuclear fusion. Credit: NASA/SDO hotter (200 million K vs 10 million K) and we can use a more reactive (x1020!) fuel (heavy hydrogen isotopes) PrincetonFUSION 3 SYSTEMS 2/13/20 Why does fusion require plasma? At fusion temperatures (100 million degrees), no matter exists in solid, liquid, or gas phases. All matter exists as plasma, which is like an electrically conductive gas. This is good for us, because plasma can be confined with large magnets to keep the heat from leaking out and cooling the plasma This plasma is confined magnetically The trick of artificial fusion, what has in the PFRC-2 experiment at PPPL made it so elusive, is keeping the plasma hot. -
Aneutronic Fusion
Aneutronic Fusion The most efficient and ecologically safest energy source 1p + 11B → 3*4He + 8.7 MeV Michael Esuabana Agenda • Why Aneutronic • Theory • LPP • TriAlpha • Polywell • Space propulsion Why Aneutronic Fission reactor 1M x more efficient than coal but! • Expensive (Mining, Turbine, Cleanup/Storing) • Large amount of Highly Radioactive byproducts • Proliferation (Thorium doesn’t help either U232) D-T Fusion reactors Tokamak /(Laser not shown) • 3-4 times more efficient than a Fission reactor • Produces high number of Neutrons • Still requires expensive Turbine system. • Storing problem, irradiated from Neutrons. Pros • Lower temperature to ignite 400MK • Higher Cross section ITER Proton + 11Boron Fusion Pros • Has no Neutron emission < 1%, just Helium Ions. • Energy can be directly converted without Turbine • No Storage worry • Still 10:1 input output ratio as D-T fusion reaction. • Cheaper Cons • Higher Temperature required to fuse 1.6BK • Lower cross section than D-T He3 is scarce on earth, must mine in space(moon) Li7 has no advantages to B11, and has lower cross section! Theory • Emittied n is < 1% of total energy emitted from fusion. • Q value is 3.07 MeV amount of energy released from decay C12 • P colliding Boron11 A=11 Z=5 produces radioactive ion C12 A=12 Z=6. • No γ rays, no neutrons. Ideal for • C12’s half life 20 minutes, everday use around populace. decays into stable He4 ions. • Z=6 is large state of electric charge, • With boron at rest, proton easy to convert directly into needs large velocity to fuse. electricity. By cyclotron or reverse Resonance at 675 keV has linear accelerator. -
Manifestation of Constrained Dynamics in a Low Pressure Spark
Manifestation of constrained dynamics in a low pressure spark S K H Auluck Physics Group, Bhabha Atomic Research Centre, Mumbai 400085, India e-mail: [email protected]; [email protected] Abstract: Some features of neutron emission from dense plasma focus suggest that the participating deuterons have energy in the range of 105 eV and have a directionality of toroidal motion. Theoretical models of these devices assume that the plasma evolves through a purely irrotational flow and thus fail to predict such solenoidal flow on the scale of the plasma dimensions. Predictions of a relaxation theory are consistent with experimental data [S K H Auluck, Physics of Plasmas,18, 032508 (2011)], but the assumptions upon which it is based are not compatible with known features of these devices. There is thus no satisfactory theoretical construct which provides the necessity for solenoidal flow in these devices. This paper proposes such theoretical construct, namely, the principle of constrained dynamics, and describes an experiment which provides support for this idea. The experiment consisted of low inductance, self-breaking spark discharge in helium at a pressure ~100 hPa between two pointed electrodes separated by 30-50 mm distance kept inside a vacuum chamber mounted on a low inductance high voltage capacitor. The current derivative signal showed reproducible sharp dips at all the extrema of the damped sinusoidal discharge. A planar diamagnetic loop centered with and perpendicular to the discharge axis consistently showed a signal representing rate of change of axial magnetic flux. The discharge plasma was very weakly ionized. Its acceleration was constrained by viscous drag of the neutrals, pressure gradient was constrained by heat conduction by neutrals and at the same time, the axial current density and azimuthal magnetic field were constrained to follow an oscillatory temporal profile. -
Fully Three-Dimensional Simulation and Modeling of a Dense Plasma Focus B
1 Fully Three-dimensional Simulation and Modeling of a Dense Plasma Focus B. T. Meehan, J. H. J. Niederhaus Abstract—A Dense Plasma Focus (DPF) is a pulsed-power and the literature presenting the results of such simulations is machine that electromagnetically accelerates and cylindrically sparse. There are a number of challenges in the 3D modeling, compresses a shocked plasma in a Z-pinch. The pinch results in a including the computational complexity of the problem, a need brief (∼100 nanosecond) pulse of X-rays, and, for some working gases, also a pulse of neutrons. A great deal of experimental for appropriate initial conditions to ignite the inverse pinch, research has been done into the physics of DPF reactions, and insufficient equation of state (EOS) data for the working gas there exist mathematical models describing its behavior during and the electrodes, and incorporating radiative effects into the the different time phases of the reaction. Two of the phases, MHD model. known as the inverse pinch and the rundown, are approximately governed by magnetohydrodynamics, and there are a number of well-established codes for simulating these phases in two In a DPF, a working gas is charged, forming a plasma, dimensions or in three dimensions under the assumption of axial that travels down an anode surrounded by a cathode, and symmetry. There has been little success, however, in developing fully three-dimensional simulations. In this work we present the speed that the plasma shock travels down the anode is three-dimensional simulations of DPF reactions and demonstrate determined by the initial pressure and voltage in the system. -
Construction and Physics of the Dense Plasma Focus Device
2370-3 School and Training Course on Dense Magnetized Plasma as a Source of Ionizing Radiations, their Diagnostics and Applications 8 - 12 October 2012 Construction and Physics of the Dense Plasma Focus device Vladimir A. Gribkov A.I. Alikhanov Institute for Theoretical and Experimental Physics, Rosatom Moscow Russia Baikov Institute of Metallurgy and Material Sciences, Russ. Ac. Sci. Moscow Russia Moscow Russia Construction and Physics of the Dense Plasma Focus device Vladimir A. Gribkov A.I. Alikhanov Institute for Theoretical and Experimental Physics, Rosatom, Moscow, Russia A.A. Baikov Institute of Metallurgy and Material Sciences, Russ. Ac. Sci., Moscow, Russia The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy Collaboration ¾ ICTP, Trieste, Italy ¾ International Centre for Dense Magnetized Plasma, Warsaw, Poland ¾ Institute of Plasma Physics and Laser Microfusion, Warsaw, Poland ¾ M.V. Lomonosov Moscow State University, Moscow, Russia ¾ All-Russ. Research Inst. of Automatics, Moscow, Russia ¾ Nanyang Technological University, Singapore ¾ Moscow Physical Society, Moscow, Russia ¾ ACS Ltd., Warsaw, Poland ¾ Tallinn University, Tallinn, Estonia OUTLINE 1. Introduction: DPF – constructions and principles of operation; pulsed radiation physics, chemistry, biology in its perfect sense 2. Apparatus and Diagnostics 3. Dynamics of plasma, beams of fast particles and ionizing radiations in Dense Plasma Focus devices 4. Conclusions 1. Introduction: DPF – constructions and principles of operation; pulsed radiation -
Compact Fusion Reactors
Compact fusion reactors Tomas Lind´en Helsinki Institute of Physics NST2016, Helsinki, 3rd of November 2016 Fusion research is currently to a large extent focused on tokamak (ITER) and inertial confinement (NIF) research. In addition to these large international or national efforts there are private companies performing fusion research using alternative concepts, that potentially could result on a faster time scale in smaller and cheaper devices than ITER or NIF. The attempt to achieve fusion energy production through relatively small and compact devices compared to standard tokamaks decreases the costs and building time of the reactors and this has allowed several private companies to enter the field, like EMC2, General Fusion, Helion Energy, LPP Fusion, Lockheed Martin, Tokamak Energy and Tri Alpha Energy. These companies are trying to demonstrate the feasibility of their concept. If that is succesfully done, their next step is to try to demonstrate net energy production and after that to attempt to commercialize their technology. In this presentation a very brief overview of compact fusion reactor research is given. Tomas Lind´en (HIP) Compact fusion reactors 03.11.2016 1 / 24 Contents Contents 1 Fusion conditions 2 Plasma confinement 3 The Polywell reactor 4 Lockheed Martin CFR 5 Dense plasma focus 6 MTF 7 Spherical tokamaks 8 Other fusion concepts 9 Summary Tomas Lind´en (HIP) Compact fusion reactors 03.11.2016 2 / 24 Fusion conditions Fusion conditions See Antti Hakolas presentation in this conference on mainline fusion. A useful fusion performance metric is the triple product NτT (1) that has to execeed some threshold value for the fusion reaction in question for the fusion power to exceed radiation and other losses and maintain a constant plasma temperature. -
Numerical Simulations of Mather, Filippov and Concentric Plasma Focus Using Lee Model
NUMERICAL SIMULATIONS OF MATHER, FILIPPOV AND CONCENTRIC PLASMA FOCUS USING LEE MODEL FAIRUZ DIYANA BINTI ISMAIL A thesis submitted in fulfilment of the requirement for the award of the degree of Doctor of Philosophy (Physics) Faculty of Science Universiti Teknologi Malaysia JANUARY 2017 I dedicate this thesis to my parents. The most beautiful thing in this world is to see your parents smiling and knowing that you are the reason behind that smile. I love you Ibu and Ayah. To my husband Mohammad Faiz; the best love is the kind that awakens the soul. That makes us reach for more, that plants the fire in our hearts and bring peace to our minds. That’s what I hope to give your forever. To my son Mohammad Fitri; I’ve tried and failed at many times in life but I will never stop giving 100% of being the best mom I can be. Everything they said about how lonely Ph.D journey can be is very true. But I’m very thankful to my family for their endless support throughout good times and hard times. ACKNOWLEDGEMENT Alhamdulillah. Thanks to Allah whom with His willing giving me the opportunity to complete my Ph.D thesis. There are a number of people whim this thesis might not have been written, and to whom I am greatly indebted. My deepest thanks to Prof. Dr. Jalil Ali who had guided me through this journey. I am mostly grateful to Emeritus Prof. Dr. Lee Sing for his guidance, comment and suggestions. His plasma focus and Lee’s code training in the course of my Ph.D research has tremendously accelerated my research progress.