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Author : Thomas J. McGuire
Release : 2003
Genre :
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Confinement Limitations in Gridded Inertial Electrostatic Confinement Fusion Devices by : Thomas J. McGuire
Download or read book Confinement Limitations in Gridded Inertial Electrostatic Confinement Fusion Devices written by Thomas J. McGuire. This book was released on 2003. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas John McGuire
Release : 2007
Genre :
Kind : eBook
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Book Synopsis Improved Lifetimes and Synchronization Behavior in Multi-grid Inertial Electrostatic Confinement Fusion Devices by : Thomas John McGuire
Download or read book Improved Lifetimes and Synchronization Behavior in Multi-grid Inertial Electrostatic Confinement Fusion Devices written by Thomas John McGuire. This book was released on 2007. Available in PDF, EPUB and Kindle. Book excerpt: A high output power source is required for fast, manned exploration of the solar system, especially the outer planets. Travel times measured in months, not years, will require high power, lightweight nuclear systems. The mature nuclear concepts of solidcore fission and fusion Tokamaks do not satisfy the lightweight criteria due to massive radiators and magnets respectively. An attractive alternative is Inertial Electrostatic Confinement fusion. This extremely lightweight option has been studied extensively and to date has produced significant fusion rates of order 1010 reactions per second, but at low power gains, no higher than Q = 10-4. The major loss mechanisms for the state-of-the-art IEC are identified via a detailed reaction rate scaling analysis. The use of a single cathode grid causes short ion lifetimes and operation at high device pressure for simple ion generation both fundamentally limit the efficiency of these devices. Several improvements, including operation at much lower pressure with ion guns and the use of multiple cathode grids, are verified with particle-in-cell modeling to greatly improve the efficiency of IECs. These simulations show that the greatly increased confinement allows for the development of significant collective behavior in the recirculating ions. The plasma self-organizes from an initially uniform state into a synchronized, pulsing collection of ion bunches.
Author : Alexandru D. Calburean
Release : 2020
Genre :
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Performance Impact of Ion Sources in Inertial Electrostatic Confinement Devices by : Alexandru D. Calburean
Download or read book Performance Impact of Ion Sources in Inertial Electrostatic Confinement Devices written by Alexandru D. Calburean. This book was released on 2020. Available in PDF, EPUB and Kindle. Book excerpt: In order to improve the performance of Inertial Electrostatic Confinement (IEC) based fusion devices, so as to improve their effectiveness as low cost, portable neutron sources, a novel use of ion sources is proposed as a means of increasing fusion reaction rate at similar power levels. This paper aims to determine the success and practicality of the proposed use type for ion sources and characterize the IEC device in question, in terms of performance, and neutron emission. The application outlined aims to improve upon the performance of IEC devices with an anode layer ion source. The above-mentioned approach was evaluated by first conditioning the IEC fusion device in question. Then a neutron flux baseline was recorded as a metric for performance, and to evaluate the assumption of neutron emission isotropy in the device. Then an ion source was installed in the chamber, and the system was once again conditioned in the same manner. A similar baseline reading and analysis was done to ensure a correct comparison could be made between performance with the ion source turned on and off. Next the system was run with the ion source at full power to allow for further characterization of the performance and stability of the device. Finally, a last run was carried out with the ion source properly tuned, and results were compared to both baseline runs. It has been shown that there is a potential performance gain from operation with an ion source, both in terms of system stability and improved neutron emission. Across all run campaigns, the assumption of isotropic emission was shown to be a poor representation of the actual emission. With a higher degree of certainty, it has been shown that operation with an ion source serves to reliably exaggerate the anisotropy found in baseline campaigns.
Author : George H. Miley
Release : 2013-12-12
Genre : Technology & Engineering
Kind : eBook
Book Rating : 382/5 ( reviews)
Book Synopsis Inertial Electrostatic Confinement (IEC) Fusion by : George H. Miley
Download or read book Inertial Electrostatic Confinement (IEC) Fusion written by George H. Miley. This book was released on 2013-12-12. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers with an introductory understanding of Inertial Electrostatic Confinement (IEC), a type of fusion meant to retain plasma using an electrostatic field. IEC provides a unique approach for plasma confinement, as it offers a number of spin-off applications, such as a small neutron source for Neutron Activity Analysis (NAA), that all work towards creating fusion power. The IEC has been identified in recent times as an ideal fusion power unit because of its ability to burn aneutronic fuels like p-B11 as a result of its non-Maxwellian plasma dominated by beam-like ions. This type of fusion also takes place in a simple mechanical structure small in size, which also contributes to its viability as a source of power. This book posits that the ability to study the physics of IEC in very small volume plasmas makes it possible to rapidly investigate a design to create a power-producing device on a much larger scale. Along with this hypothesis the book also includes a conceptual experiment proposed for demonstrating breakeven conditions for using p-B11 in a hydrogen plasma simulation. This book also: Offers an in-depth look, from introductory basics to experimental simulation, of Inertial Electrostatic Confinement, an emerging method for generating fusion power Discusses how the Inertial Electrostatic Confinement method can be applied to other applications besides fusion through theoretical experiments in the text Details the study of the physics of Inertial Electrostatic Confinement in small-volume plasmas and suggests that their rapid reproduction could lead to the creation of a large-scale power-producing device Perfect for researchers and students working with nuclear fusion, Inertial Electrostatic Confinement (IEC) Fusion: Fundamentals and Applications also offers the current experimental status of IEC research, details supporting theories in the field and introduces other potential applications that stem from IEC.
Author : Hyung Jin Kim
Release : 2006
Genre :
Kind : eBook
Book Rating : 255/5 ( reviews)
Book Synopsis Instability Studies on a Spherical Inertial Electrostatic Confinement by : Hyung Jin Kim
Download or read book Instability Studies on a Spherical Inertial Electrostatic Confinement written by Hyung Jin Kim. This book was released on 2006. Available in PDF, EPUB and Kindle. Book excerpt: The spherical inertial electrostatic confinement concept offers an alternative fusion plasma confinement scheme, where charged particles are accelerated and confined electrostatically with a series of biased spherical concentric electrodes. The inertia of the accelerated ions compresses the ions and builds up the space charge at the center of the cathode grid. The space charge of the ions attracts electrons which in turn accumulate a space charge. The accumulation of collective space charge creates a series of deep "virtual" electrostatic potential wells which confine and concentrate ions into a small volume where an appreciable number of nuclear fusion reactions could occur. It is very attractive for a power plant due to its mechanical simplicity and high power-to-mass ratio. However, its beam-plasma interactions are not clearly understood.
