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in creator/contributor: "Tabak, M."  
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Developing the Physics Basis of Fast Ignition Experiments at Future Large Fusion-class lasers

Description: The Fast Ignition (FI) concept for Inertial Confinement Fusion (ICF) has the potential to provide a significant advance in the technical attractiveness of Inertial Fusion Energy (IFE) reactors. FI differs from conventional 'central hot spot' (CHS) target ignition by using one driver (laser, heavy ion beam or Z-pinch) to create a dense fuel and a separate ultra-short, ultra-intense laser beam to ignite the dense core. FI targets can burn with {approx} 3X lower density fuel than CHS targets, resu… more
Date: February 8, 2008
Creator: MacKinnon, A. J.; Key, M. H.; Hatchett, S.; MacPhee, A. G.; Foord, M.; Tabak, M. et al.
Partner: UNT Libraries Government Documents Department
open access

Short Pulse Laser Applications Design

Description: We are applying our recently developed, LDRD-funded computational simulation tool to optimize and develop applications of Fast Ignition (FI) for stockpile stewardship. This report summarizes the work performed during a one-year exploratory research LDRD to develop FI point designs for the National Ignition Facility (NIF). These results were sufficiently encouraging to propose successfully a strategic initiative LDRD to design and perform the definitive FI experiment on the NIF. Ignition experim… more
Date: February 11, 2008
Creator: Town, R J; Clark, D S; Kemp, A J; Lasinski, B F & Tabak, M
Partner: UNT Libraries Government Documents Department
open access

On the Utility of Antiprotons as Drivers for Inertial Confinement Fusion

Description: By contrast to the large mass, complexity and recirculating power of conventional drivers for inertial confinement fusion (ICF), antiproton annihilation offers a specific energy of 90MJ/{micro}g and thus a unique form of energy packaging and delivery. In principle, antiproton drivers could provide a profound reduction in system mass for advanced space propulsion by ICF. We examine the physics underlying the use of antiprotons ({bar p}) to drive various classes of high-yield ICF targets by the m… more
Date: October 20, 2003
Creator: Perkins, L J; Orth, C D & Tabak, M
Partner: UNT Libraries Government Documents Department
open access

Compact Torus Accelerator Driven Inertial Confinement Fusion Power Plant HYLIFE-CT

Description: A Compact Torus Accelerator (CTA) is used to accelerate a Compact Torus (CT) to 35 MJ kinetic energy which is focused to a 20 mm diameter where its kinetic energy is converted to a shaped x-ray pulse of 30 MJ. The capsule yield with a prescribed radiation profile is calculated to be (gain 60 times 30 MJ) 1.8 GJ. Schemes for achieving this profile are described. The CT is accelerated in a length of 30 m within an annulus of 150 mm ID and 300 mm OD where the maximum magnetic field is 28 T. A 2.5 … more
Date: March 30, 2005
Creator: Logan, B G; Moir, R W; Tabak, M; Bieri, R L; Hammer, J H; Hartman, C W et al.
Partner: UNT Libraries Government Documents Department
open access

Radiation-driven targets for heavy-ion fusion

Description: The baseline hohlraum configuration for heavy-ion fusion has the radiation converters placed at opposite ends. For a capsule that absorbs about 1 MJ and has an initial radius of 0.234 cm, the minimum initial capsule to hohlraum surface area ratio that can provide an adequate time-dependent symmetry requirement for a capsule implosion is about 0.075, based on calculations using the view factor code GERTIE. The capsule implosion is calculated using the hydrodynamic code HYADES. The energy couplin… more
Date: August 1994
Creator: Ho, D. D. M.; Harte, J. A. & Tabak, M.
Partner: UNT Libraries Government Documents Department
open access

Development and Application of a Predictive Computational Tool for Short-Pulse, High-Intensity Target Interactions

Description: The widely differing spatial, temporal, and density scales needed to accurately model the fast ignition process and other short-pulse laser-plasma interactions leads to a computationally challenging project that is difficult to solve using a single code. This report summarizes the work performed on a three year LDRD to couple together three independent codes using PYTHON to build a new integrated computational tool. An example calculation using this new model is described.
Date: January 26, 2007
Creator: Town, R. J.; Chung, H.; Langdon, A. B.; Lasinski, B. F.; Lund, S. M.; McCandless, B. C. et al.
Partner: UNT Libraries Government Documents Department
open access

Ion-driver fast ignition: Reducing heavy-ion fusion driver energy and cost, simplifying chamber design, target fab, tritium fueling and power conversion

Description: Ion fast ignition, like laser fast ignition, can potentially reduce driver energy for high target gain by an order of magnitude, while reducing fuel capsule implosion velocity, convergence ratio, and required precisions in target fabrication and illumination symmetry, all of which should further improve and simplify IFE power plants. From fast-ignition target requirements, we determine requirements for ion beam acceleration, pulse-compression, and final focus for advanced accelerators that must… more
Date: April 1, 1998
Creator: Logan, G.; Callahan-Miller, D.; Perkins, J.; Caporaso, G.; Tabak, M.; Moir, R. et al.
Partner: UNT Libraries Government Documents Department
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