2 edition of Some theoretical studies on the implosion and fusion burn of heavy ion beam driven ICF targets found in the catalog.
Some theoretical studies on the implosion and fusion burn of heavy ion beam driven ICF targets
David P. Edwards
Thesis (Ph.D.) - University of Birmingham, Dept of Physics, 1987.
|Statement||by David P. Edwards.|
Researchers making these targets for the ICF and the HAPL programs produced targets with specifications that are acceptable for the laser-driven fusion concepts; however, it remains to be demonstrated that the fabrication process can be scaled to satisfy the requirements of an IFE program. FIGURE The heavy-ion-driven “X-target” concept. Intense beams of light of heavy ions are being studied as inertial confinement fusion (ICF) drivers for high yield and energy. Heavy and light ions have common interests in beam transport, targets, and alternative accelerators. Self-pinched transport is being jointly studied. This article reviews the development of intense ion beams for ICF.
This 6th International Workshop in the series starting in was held at the Naval Postgraduate School in Monterey, California from October, under the continuing directorship of Heinrich Hora. The co-directorship of the late Helmut Schwarz who helped found the series was assumed by. Nuclear Fusion by Inertial Confinement provides a comprehensive analysis of directly driven inertial confinement fusion. All important aspects of the process are covered, including scientific considerations that support the concept, lasers and particle beams as drivers, target fabrication, analytical and numerical calculations, and materials and engineering considerations.
The fundamental input variables of an inertial confinement fusion (ICF) implosion are the implosion velocity (V) and fuel entropy (S) or adiabat (α), and ablator on the outer surface of the dense fuel. A comparison of the computer models with preliminary experiments was permitted to identify the 14 laser and 3 target parameters that must be. Journal Article: Nonuniformity for rotated beam illumination in directly driven heavy-ion fusion.
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The early work on heavy ion fusion triggered pioneering studies in theoretical, and experimental high current beam transport; also in target physics (where up to this point little published work could be found in the open literature); in atomic physics problems, in plasmas which is important for beam stopping ; furthermore on storage rings Cited by: HIDIF, European Study Group on Heavy Ion Driven Inertial Fusion, I.
Hofmann and G. Plass, GSI-report, GSI–06, ] (Heavy Ion Driven Ignition Facility, –) elaborated by a European Study Group under the leadership of CERN and by: Inertial confinement fusion (ICF) is a type of fusion energy research that attempts to initiate nuclear fusion reactions by heating and compressing a fuel target, typically in the form of a pellet that most often contains a mixture of deuterium and l fuel pellets are about the size of a pinhead and contain around 10 milligrams of fuel.
To compress and heat the fuel, energy is. Mechanisms that induce implosion asymmetries in ion-driven inertial confinement fusion (ICF) targets are identified and investigated by studying the two-dimensional hydrodynamic response of the.
As an example it is applied to a partic- ular single shell, multilayer heavy ion beam target. Introduction. The theoretical analysis of pellet implosions as considered in inertial confinement fusion (ICF) has, because of the complicated nature of the problem, relied heavily on the use of very large one- and two-dimensional computer codes [1 4].Cited by: During the past two years, the U.S.
heavy ion fusion science program has made significant experimental and theoretical progress in simultaneous transverse and longitudinal beam compression, ion-beam-driven warm dense matter targets, high-brightness beam transport. By using the OK1 code with some corrections, the non-uniformity of heavy-ion beam irradiation for the different ion beams on two kinds of targets were evaluated in beam, beam, beam and.
Nuclear Engineering and Design 73 () North-Holland Publishing Company HEAVY ION BEAM DRIVEN INERTIAL CONFINEMENT FUSION TARGET STUDIES AND REACTOR CHAMBER NEUTRONIC ANALYSIS R. FROHLICH, B. GOEL, D.L.
HENDERSON, W. HOBEL, K.A. LONG and N.A. TAHIR lnstitut fiir Neutronenphysik und Reaktortechnik. Box Laser-Plasma Interactions.
In laser-driven inertial confinement fusion (ICF), the capsule implosion is driven by thermal pressure. 1 Thus, the incident laser energy must be absorbed by matter and thermalized, either in the outer shell of the capsule (direct drive) or in the inner walls of the hohlraum (indirect drive), which become plasmas.
The variety of LPI that take place when an. on the role of the plasma radiation in heavy ion fusion. radiation effect on pellet implosion in lib icf. proton beam fusion. beam propagation and indirect-driven-target.
rayleigh-taylor instability in lib icf. progress on the momentum-rich ion beam concept for icf. pr: diagnostic methods. linear induction accelerator of the hollow electron beam.
The paper presents a parameter study of implosion, ignition conditions, burn and gain of a single-shell, multi-layered, heavy-ion-beam driven ICF target as a function of input pulse parameters. tions that integrate the physics of ion beam deposition and hohlraum dynamics, including radiation and material ﬂow, with the implosion and thermonuclear burn of an inertial con nement fusion (ICF) capsule, the capsule ignited and produced MJ of yield when driven with.
Looking for an optimum reference configuration for MTF with heavy-ion beams, we find the ignition threshold of magnetized cylindrical fusion targets to be at a driver pulse energy of about 10 MJ.
In this study a direct-indirect hybrid implosion mode is discussed in heavy ion beam (HIB) inertial confinement fusion (HIF) in order to release sufficient fusion energy in a robust manner. A method of imploding an Inertial Confinement Fusion (ICF) target may include directing laser energy into a hohlraum, where a target is disposed within the hohlraum that includes an ablator layer, a shell disposed within the ablator layer, and a fuel region disposed within the shell.
The method may also include ablating the ablator layer in response to the laser energy being directed into the. 1. Introduction This heavy ion fusion (HIF) meeting produced target physics developments on many fronts. In addition to purely theoretical work in heavy ion target physics, experimental results of major im- portance to HIF produced by laser and light ion.
The ignitor ion-beam generation problem is reasonably separable from the implosion. Therefore, research on the generation, transport and focusing of laser-driven ion beams relevant to FI preponderates the work presented in this review, although relevant research involving implosions with re-entrant cones is briefly discussed.
A short review of Inertial Fusion Targets is presented according to a systematics based on the four consecutive phases of the evolution of a target: beam illumination; implosion hydrodynamics; fuel deceleration and compression; and ignition and burn propagation.
Main. Recent analysis of direct drive fusion energy targets using heavy ion beams has found high coupling efficiency of ion beam energy into implosion energy.
However, more» to obtain optimal coupling, the ion energy must increase during the pulse in order to penetrate the outflowing ablated material, and deposit the energy close enough to the fuel. Magneto-inertial fusion (MIF) (aka magnetized target fusion) [1–3] is an approach to fusion that combines the compressional heating of inertial confinement fusion (ICF) with the magnetically reduced thermal transport and magnetically enhanced alpha heating of magnetic confinement fusion (MCF).From an MCF perspective, the higher density, shorter confinement times.
Because of its high voltage, this accelerator is not suitable for electron-driven fusion applications, but may be useful for light ion-driven fusion. Other high-current electron accelerators capable of delivering TW to a matched load at MV have been constructed and are currently being utilized for electron beam, ion beam, and imploding.
Inertial confinement fusion (ICF) is an approach to fusion that relies on the inertia of the fuel mass to provide confinement. To achieve conditions under which inertial confinement is sufficient for efficient thermonuclear burn, a capsule (generally a spherical shell) containing thermonuclear fuel is compressed in an implosion process to conditions of high density and temperature.
ICF [1, 2] is an intrinsically pulsed process, involving the burn of fuel elements (targets) containing a DT fuel mass m of at most a few target is brought to fusion condition by the energy provided by a pulsed outer source (the driver).
ICF has two basic ingredients. The first one is fuel compression to very high density, ρ ≥ g cm −3.