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Fusion Neutron Production Using Deuterium Fuel In An Inertial Electrostatic Confinement Device At 10 To 200 Kilovolts
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Book Synopsis Fusion Neutron Production Using Deuterium Fuel in an Inertial Electrostatic Confinement Device at 10 to 200 Kilovolts by : Aaron N. Fancher
Download or read book Fusion Neutron Production Using Deuterium Fuel in an Inertial Electrostatic Confinement Device at 10 to 200 Kilovolts written by Aaron N. Fancher and published by . This book was released on 2018 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work details the advancement and understanding of fusion neutron generation capabilities using a deuterium fueled spherical gridded inertial electrostatic confinement (IEC) device operating up to 200 kV at the University of Wisconsin-Madison. The goal of this work was to extend the experimental and theoretical understanding of gridded IEC operations to previously unachieved 200 kV cathode operation and to investigate long term trends in the neutron production rate performance. To support this experimental investigation, hardware with the capability to reliably sustain 200 kV operation was successfully developed by constructing a resistively divided 2-stage high voltage vacuum feedthrough. Repeated measurements of the neutron production rate under fixed experimental conditions were performed over the span of 100 operational runs, which showed an upward trend in the neutron production rate performance. An investigation into the impact of impurity gas in the chamber during operation showed the reduction of impurity gas in the system and an increase in neutron production rate are correlated. An estimation of the neutron production rate increase over these runs due to embedded fusion reactions in the chamber wall showed a fuel density build up near the surface by the implantation of fast neutral deuterium particles leaving the system can plausibly account for the upward trend in neutron production rate measurements. Parametric studies measured the neutron production rate with variations in the device cathode voltage (10-200 kV), cathode current (30-100 mA) and chamber pressure (0.2-1.7 mTorr D2), and comparisons with a theoretical model are made. The results of this study showed the neutron production rate scales linearly with current as expected with a beam-target fusion regime and scales in a complex manner with voltage and pressure. Comparisons made to a theoretical model of the neutron production rate using an integral transport code showed the absolute neutron production rate prediction by the model is a factor of 7.8 lower than experimental measurements. A new record for steady-state D-D neutron production rate of 3.8x108 neutrons/s has been achieved in a gridded IEC device at a cathode voltage of 200 kV, cathode current of 100 mA, and chamber pressure of 1.0 mTorr D2.
Book Synopsis Optimized D-D Neutron Production Rates in the Linear Inertial-electrostatic Confinement Fusion Device - LUNA by : Nolan C. van Rossum
Download or read book Optimized D-D Neutron Production Rates in the Linear Inertial-electrostatic Confinement Fusion Device - LUNA written by Nolan C. van Rossum and published by . This book was released on 2019 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Increasing the High Voltage Capabilities and Exploring Parameter Space of an Inertial Electrostatic Confinement Fusion Neutron Source for the Detection of Chemical Explosives by : Matthew K. Michalak
Download or read book Increasing the High Voltage Capabilities and Exploring Parameter Space of an Inertial Electrostatic Confinement Fusion Neutron Source for the Detection of Chemical Explosives written by Matthew K. Michalak and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the work presented here include understanding key operating principles and providing precise data sets that can be used to test inertial electrostatic confinement (IEC) fusion theory and optimize IEC device operation. The underlying physical behavior was separated from superficial trends observed in an IEC device at the University of Wisconsin--Madison (UW). The effects of changing voltage (30-170 kV) and current (30-100 mA) were thoroughly explored, pressure effects (0.15-1.25 mTorr) were mapped, and the effect of impurities in the system was quantified. The most challenging part of this work was designing a high voltage feedthrough that could reliably operate at higher voltages for far longer times than previously attained. A system to detect conventional explosives using fusion neutrons was also designed, constructed, and tested. Precise data sets were created by taking into account and minimizing the effects of short and long term trends in the experiment. Detailed meter current scans were taken that showed a linear relationship of the neutron production rate with current. Cathode voltage scans were slightly greater than linear in the neutron rate from 30 to 170 kV, but the rate increase diminished to near linear as 170 kV was approached. A new high voltage feedthrough was designed that surpassed the performance of past UW IEC lab feedthroughs and shows promise for long duration operation at still higher voltages. Limitations of other equipment in the IEC lab prevented testing the feedthrough to voltages above 175 kV. A more robust construction of the feedthrough and reducing the consequences of a feedthrough failure were also important design criteria that were met. A detector array was made to detect explosives via the 10.8 MeV neutron capture prompt gamma from nitrogen. Signals from four separate detectors were combined to make the individual detectors act similar to one large detector. The detector signals were both summed and combined to compare the performance of the two methods. An overwhelming background radiation signal and insufficient time resolution were two factors that led to the combined signal not performing as well as the summed signal.
Book Synopsis Nuclear Fusion by Inertial Confinement by : Guillermo Velarde
Download or read book Nuclear Fusion by Inertial Confinement written by Guillermo Velarde and published by CRC Press. This book was released on 2020-11-25 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. Authors from Australia, Germany, Italy, Japan, Russia, Spain, and the U.S. have contributed to the volume, making it an internationally significant work for all scientists working in the Inertial Confinement Fusion (ICF) field, as well as for graduate students in engineering and physics with interest in ICF.
Book Synopsis Theory and Development of a Sealed Deuterium Tritium Inertial Electrostatic Confinement Neutron Generator by : Brian Edward Jurczyk
Download or read book Theory and Development of a Sealed Deuterium Tritium Inertial Electrostatic Confinement Neutron Generator written by Brian Edward Jurczyk and published by . This book was released on 1997 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spatial Profiling Using a Time of Flight Diagnostic and Applications of Deuterium-deuterium Fusion in Inertial Electrostatic Confinement Fusion Devices by : David C Donovan
Download or read book Spatial Profiling Using a Time of Flight Diagnostic and Applications of Deuterium-deuterium Fusion in Inertial Electrostatic Confinement Fusion Devices written by David C Donovan and published by . This book was released on 2011 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neutron Production Analysis on Inertial Electrostatic Deuterium-deuterium Fusion by : Louis Franzel
Download or read book Neutron Production Analysis on Inertial Electrostatic Deuterium-deuterium Fusion written by Louis Franzel and published by . This book was released on 2009 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space-charge Dynamics and Neutron Generation in an Inertial-electrostatic Confinement Device by : Jonathon Howe Nadler
Download or read book Space-charge Dynamics and Neutron Generation in an Inertial-electrostatic Confinement Device written by Jonathon Howe Nadler and published by . This book was released on 1992 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inertial-Electrostatic Confinement (IEC) is an alternative approach to fusion power that offers the ability to burn advanced fuels like D-He$\sp3$ in a non-Maxwellian, high density core. These aneutronic reactions are ideal for direct energy conversion.
Author :Blair Patrick Bromley Publisher :Ann Arbor, Mich. : University Microfilms International ISBN 13 : Total Pages :1266 pages Book Rating :4.:/5 (488 download)
Book Synopsis Computational Modeling of the Axial-cylindrical Inertial Electrostatic Confinement Fusion Neutron Generator by : Blair Patrick Bromley
Download or read book Computational Modeling of the Axial-cylindrical Inertial Electrostatic Confinement Fusion Neutron Generator written by Blair Patrick Bromley and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 2001 with total page 1266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fusion Power by Magnetic Confinement by : United States. Division of Magnetic Fusion Energy
Download or read book Fusion Power by Magnetic Confinement written by United States. Division of Magnetic Fusion Energy and published by . This book was released on 1976 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inertial Electrostatic Confinement I(IEC) Neutron Sources by :
Download or read book Inertial Electrostatic Confinement I(IEC) Neutron Sources written by and published by . This book was released on 1995 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inertial Electrostatic Confinement (IEC) is one of the earliest plasma confinement concepts, having first been suggested by P.T. Farnsworth in the 1950s. The concept involves a simple apparatus of concentric spherical electrostatic grids or a combination of grids and magnetic fields. An electrostatic structure is formed from the confluence of electron or ion beams. Gridded IEC systems have demonstrated neutron yields as high as 2*10 [10]. neutrons/sec in steady state. These systems have considerable potential as small, inexpensive, portable neutron sources for assaying applications. Neutron tomography is also a potential application. This paper discusses the IEC concept and how it can be adapted to a steady-state assaying source and an intense pulsed neutron source. Theoretical modeling and experimental results are presented.
Book Synopsis Time Dependent Neutronics Studies in Inertial Confinement Fusion by : Fred Beranek
Download or read book Time Dependent Neutronics Studies in Inertial Confinement Fusion written by Fred Beranek and published by . This book was released on 1978 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of the Department of Energy's Inertial Confinement Fusion Program by : National Research Council
Download or read book Review of the Department of Energy's Inertial Confinement Fusion Program written by National Research Council and published by National Academies Press. This book was released on 1997-04-24 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Convergence, Indirect Drive Inertial Confinement Fusion Experiments at Nova by :
Download or read book High Convergence, Indirect Drive Inertial Confinement Fusion Experiments at Nova written by and published by . This book was released on 1995 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: High convergence, indirect drive implosion experiments have been done at the Nova Laser Facility. The targets were deuterium and deuterium/tritium filled, glass microballoons driven symmetrically by x rays produced in a surrounding uranium hohlraum. Implosions achieved convergence ratios of 24:1 with fuel densities of 19 g/cm3; this is equivalent to the range required for the hot spot of ignition scale capsules. The implosions used a shaped drive and were well characterized by a variety of laser and target measurements. The primary measurement was the fuel density using the secondary neutron technique (neutrons from the reaction 2H(3H, n)4He in initially pure deuterium fuel). Laser measurements include power, energy and pointing. Simultaneous measurement of neutron yield, fusion reaction rate, and x-ray images provide additional information about the implosion process. Computer models are in good agreement with measured results.
Book Synopsis Maximum Neutron Yeidls in Experimental Fusion Devices by :
Download or read book Maximum Neutron Yeidls in Experimental Fusion Devices written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The optimal performances of 12 types of fusion devices are compared with regard to neutron production rate, neutrons per pulse, and fusion energy multiplication, Q/sub p/ (converted to the equivalent value in D-T operation). The record values in all categories are held by the beam-injected tokamak plasma, followed by other beam-target systems. The achieved values of Q/sub p/ for nearly all laboratory plasma fusion devices (magnetically or inertially confined) are found to roughly satisfy a common empirical scaling, Q/sub p/ approx. 10−6E/sub in/32, where E/sub in/ is the energy (in kilojoules) injected into the plasma during one or two energy confinement times, or the total energy delivered to the target for inertially confined systems. Fusion energy break-even (Q/sub p/ = 1) in any system apparently requires E/sub in/ approx. 10,000 kJ.
Book Synopsis Fusion Neutron Production During Deuterium Neutral Beam Injection Into PLT. by : Patrick L. Colestock
Download or read book Fusion Neutron Production During Deuterium Neutral Beam Injection Into PLT. written by Patrick L. Colestock and published by . This book was released on 1979 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inertial Electrostatic Confinement 3He Breeder for D-3He Fusion Reactor Systems by : Luis Chacon de la Rosa
Download or read book Inertial Electrostatic Confinement 3He Breeder for D-3He Fusion Reactor Systems written by Luis Chacon de la Rosa and published by . This book was released on 1997 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
