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1. The Magnetized Indirect Drive Project on the National Ignition Facility

Author

Moody, J. D., Pollock, B. B., Sio, H., Strozzi, D. J., Ho, D. D.-M., Walsh, C., Kemp, G. E., Kucheyev, S. O., Kozioziemski, B., Carroll, E. G., Kroll, J., Yanagisawa, D. K., Angus, J., Bhandarkar, S. D., Bude, J. D., Divol, L., Ferguson, B., Fry, J., Hagler, L., Hartouni, E., Herrmann, M. C., Hsing, W., Holunga, D. M., Javedani, J., Johnson, A., Kalantar, D., Kohut, T., Logan, B. G., Masters, N., Nikroo, A., Orsi, N., Piston, K., Provencher, C., Rowe, A., Sater, J., Skulina, K., Stygar, W. A., Tang, V., Winters, S. E., Chittenden, J. P., Appelbe, B., Boxall, A., Crilly, A., O’Neill, S., Davies, J., Peebles, J., and Fujioka, S.

Published
2022
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2. Performance scaling with an applied magnetic field in indirect-drive inertial confinement fusion implosions

Author

Sio, H., primary, Moody, J. D., additional, Pollock, B. B., additional, Strozzi, D. J., additional, Ho, D. D.-M., additional, Walsh, C. A., additional, Kemp, G. E., additional, Lahmann, B., additional, Kucheyev, S. O., additional, Kozioziemski, B., additional, Carroll, E. G., additional, Kroll, J., additional, Yanagisawa, D. K., additional, Angus, J., additional, Bachmann, B., additional, Baker, A. A., additional, Bayu Aji, L. B., additional, Bhandarkar, S. D., additional, Bude, J. D., additional, Divol, L., additional, Engwall, A. M., additional, Ferguson, B., additional, Fry, J., additional, Hagler, L., additional, Hartouni, E., additional, Herrmann, M. C., additional, Hsing, W., additional, Holunga, D. M., additional, Javedani, J., additional, Johnson, A., additional, Khan, S., additional, Kalantar, D., additional, Kohut, T., additional, Logan, B. G., additional, Masters, N., additional, Nikroo, A., additional, Izumi, N., additional, Orsi, N., additional, Piston, K., additional, Provencher, C., additional, Rowe, A., additional, Sater, J., additional, Shin, S. J., additional, Skulina, K., additional, Stygar, W. A., additional, Tang, V., additional, Winters, S. E., additional, Zimmerman, G., additional, Chittenden, J. P., additional, Appelbe, B., additional, Boxall, A., additional, Crilly, A., additional, O'Neill, S., additional, Barnak, D., additional, Davies, J., additional, Peebles, J., additional, Bae, J. H., additional, Clark, K., additional, Havre, M., additional, Mauldin, M., additional, Ratledge, M., additional, Vonhof, S., additional, Adrian, P., additional, Reichelt, B., additional, Fujioka, S., additional, and Fraenkel, M., additional

Published
2023
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3. Increased Ion Temperature and Neutron Yield Observed in Magnetized Indirectly Driven D2 -Filled Capsule Implosions on the National Ignition Facility

Author

Moody, J. D., primary, Pollock, B. B., additional, Sio, H., additional, Strozzi, D. J., additional, Ho, D. D.-M., additional, Walsh, C. A., additional, Kemp, G. E., additional, Lahmann, B., additional, Kucheyev, S. O., additional, Kozioziemski, B., additional, Carroll, E. G., additional, Kroll, J., additional, Yanagisawa, D. K., additional, Angus, J., additional, Bachmann, B., additional, Bhandarkar, S. D., additional, Bude, J. D., additional, Divol, L., additional, Ferguson, B., additional, Fry, J., additional, Hagler, L., additional, Hartouni, E., additional, Herrmann, M. C., additional, Hsing, W., additional, Holunga, D. M., additional, Izumi, N., additional, Javedani, J., additional, Johnson, A., additional, Khan, S., additional, Kalantar, D., additional, Kohut, T., additional, Logan, B. G., additional, Masters, N., additional, Nikroo, A., additional, Orsi, N., additional, Piston, K., additional, Provencher, C., additional, Rowe, A., additional, Sater, J., additional, Skulina, K., additional, Stygar, W. A., additional, Tang, V., additional, Winters, S. E., additional, Zimmerman, G., additional, Adrian, P., additional, Chittenden, J. P., additional, Appelbe, B., additional, Boxall, A., additional, Crilly, A., additional, O’Neill, S., additional, Davies, J., additional, Peebles, J., additional, and Fujioka, S., additional

Published
2022
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4. A New Pulsed Power System for Generating Up To 40t Magnetic Seeds Fields for Cryogenic Inertial Confinement Fusion Experiments on The National Ignition Facility

Author

Carroll, E. G., primary, Bracamontes, G., additional, Piston, K., additional, James, G. F., additional, Provencher, C. M., additional, Javedani, J., additional, Stygar, W. A., additional, Povilus, A. P., additional, Vonhof, S., additional, Yanagisawa, D. K., additional, and Arnold, P., additional

Published
2022
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6. Transient magnetic field diffusion considerations relevant to magnetically assisted indirect drive inertial confinement fusion

Author

Moody, J. D., primary, Johnson, A., additional, Javedani, J., additional, Carroll, E., additional, Fry, J., additional, Kozioziemski, B., additional, Kucheyev, S. O., additional, Logan, B. G., additional, Pollock, B. B., additional, Sio, H., additional, Strozzi, D., additional, Stygar, W. A., additional, Tang, V., additional, and Winters, S., additional

Published
2020
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8. Inertial electrostatic confinement as a power source for electric propulsion

Author

Miley, George H, Burton, R, Javedani, J, Yamamoto, Y, Satsangi, A, Gu, Y, Heck, P, Nebel, R, Schulze, N, and Christensen, J

Subjects
Spacecraft Propulsion And Power
Abstract

The potential use of an Inertial Electrostatic Confinement (IEC) power source for space propulsion has previously been suggested by the authors and others. In the past, these discussions have generally followed the charged-particle electric-discharge engine (QED) concept proposed by Bussard, in which the IEC is used to generate an electron beam which vaporizes liquid hydrogen for use as a propellant. However, in the present study, we consider an alternate approach, using the IEC to drive a conventional electric thruster unit. This has the advantage of building on the rapidly developing technology for such thrusters, which operate at higher specific impulse. Key issues related to this approach include the continued successful development of the physics and engineering of the IEC unit, as well as the development of efficient step-down dc voltage transformers. The IEC operates by radial injection of energetic ions into a spherical vessel. A very high ion density is created in a small core region at the center of the vessel, resulting in extremely high fusion power density in the core. Present experiments at the U. of Illinois in small IEC devices (less than 60-cm. dia.) have demonstrated much of the basic physics underlying this concept, e.g. producing approximately 10(exp 6) D-D neutrons/sec steady-state with deuterium gas flow injection. The ultimate goal is to increase the power densities by several orders of magnitude and to convert to D-He-3 injection. If successful, such an experiment would represent a milestone proof-of-principle device for eventual space power use. Further discussion of IEC physics and status will be presented with a description of the overall propulsion system and estimated performance.

Published
1993

9. Inertial electrostatic confinement as a power source for electric propulsion

Author

Miley, G. H, Burton, R, Javedani, J, Yamamoto, Y, Satsangi, A, Gu, Y, Heck, P, Nebel, R, Schulze, N, and Christensen, J

Subjects
Spacecraft Propulsion And Power
Abstract

The potential use of an INERTIAL ELECTROSTATIC CONFINEMENT (IEC) power source for space propulsion has previously been suggested by the authors and others. In the past, these discussions have generally followed the charged-particle electric-discharge engine (QED) concept proposed by Bussard, in which the IEC is used to generate an electron beam which vaporizes liquid hydrogen for use as a propellant. However, an alternate approach is considered, using the IEC to drive a 'conventional' electric thruster unit. This has the advantage of building on the rapidly developing technology for such thrusters, which operate at higher specific impulse. Key issues related to this approach include the continued successful development of the physics and engineering of the IEC unit, as well as the development of efficient step-down dc voltage transformers. The IEC operates by radial injection of energetic ions into a spherical vessel. A very high ion density is created in a small core region at the center of the vessel, resulting in extremely high fusion power density in the core. Experiments at the U. of Illinois in small IEC devices (is less than 60 cm. dia.) demonstrated much of the basic physics underlying this concept, e.g. producing 10(exp 6) D-D neutrons/sec steady-state with deuterium gas flow injection. The ultimate goal is to increase the power densities by several orders of magnitude and to convert to D-He-3 injection. If successful, such an experiment would represent a milestone proof-of-principle device for eventual space power use. Further discussion of IEC physics and status are presented with a description of the overall propulsion system and estimated performance.

Published
1993

12. FY06 Engineering Research and Technology Report

Author

Minichino, C, primary, Alves, S, additional, Anderson, A, additional, Bennett, C, additional, Brown, C, additional, Brown, W, additional, Chinn, D, additional, Clague, D, additional, Clark, G, additional, Cook, E, additional, Davidson, J, additional, Deri, R, additional, Dougherty, G, additional, Fasenfest, B, additional, Florando, J, additional, Fulkerson, E, additional, Haugen, P, additional, Heebner, J, additional, Hickling, T, additional, Huber, R, additional, Hunter, S, additional, Javedani, J, additional, Kallman, J, additional, Kegelmeyer, L, additional, Koning, J, additional, Kosovic, B, additional, Kroll, J, additional, LeBlanc, M, additional, Lin, J, additional, Mariella, R, additional, Miles, R, additional, Nederbragt, W, additional, Ness, K, additional, Nikolic, R, additional, Paglieroni, D, additional, Pannu, S, additional, Pierce, E, additional, Pocha, M, additional, Poland, D, additional, Puso, M, additional, Quarry, M, additional, Rhee, M, additional, Romero, C, additional, Rose, K, additional, Sain, J, additional, Sharpe, R, additional, Spadaccini, C, additional, Stolken, J, additional, Van Buuren, A, additional, Wemhoff, A, additional, White, D, additional, and Yao, Y, additional

Published
2007
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15. Ultrafast probing of magnetic field growth inside a laser-driven solenoid

Author

Goyon, C., primary, Pollock, B. B., additional, Turnbull, D. P., additional, Hazi, A., additional, Divol, L., additional, Farmer, W. A., additional, Haberberger, D., additional, Javedani, J., additional, Johnson, A. J., additional, Kemp, A., additional, Levy, M. C., additional, Grant Logan, B., additional, Mariscal, D. A., additional, Landen, O. L., additional, Patankar, S., additional, Ross, J. S., additional, Rubenchik, A. M., additional, Swadling, G. F., additional, Williams, G. J., additional, Fujioka, S., additional, Law, K. F. F., additional, and Moody, J. D., additional

Published
2017
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18. Measuring Helical FCG Voltage with an Electric Field Antenna

Author

LAWRENCE LIVERMORE NATIONAL LAB CA, White, A D, Anderson, R A, Javedani, J B, Reisman, D B, Goerz, D A, Ferriera, A J, Speer, R D, LAWRENCE LIVERMORE NATIONAL LAB CA, White, A D, Anderson, R A, Javedani, J B, Reisman, D B, Goerz, D A, Ferriera, A J, and Speer, R D

Abstract

A method of measuring the voltage produced by a helical explosive flux compression generator using a remote electric field antenna is described in detail. The diagnostic has been successfully implemented on several experiments. Measured data from the diagnostic compare favorably with voltages predicted using the code CAGEN [1], validating our predictive modeling tools. The measured data is important to understanding generator performance, and is measured with a low-risk, minimally intrusive approach., See also ADM002371. 2013 IEEE Pulsed Power Conference, Digest of Technical Papers 1976-2013, and Abstracts of the 2013 IEEE International Conference on Plasma Science. IEEE International Pulsed Power Conference (19th). Held in San Francisco, CA on 16-21 June 2013., The original document contains color images.

Published
2011

19. Understanding High Voltage Vacuum Insulators for Microsecond Pulses

Author

LAWRENCE LIVERMORE NATIONAL LAB CA, Javedani, J B, Goerz, D A, Houck, T L, Lauer, E J, Speer, R D, Tully, L K, Vogtlin, G E, LAWRENCE LIVERMORE NATIONAL LAB CA, Javedani, J B, Goerz, D A, Houck, T L, Lauer, E J, Speer, R D, Tully, L K, and Vogtlin, G E

Abstract

High voltage insulation is one of the main areas of pulsed power research and development since the surface of an insulator exposed to vacuum can fail electrically at an applied field more than an order or magnitude below the bulk dielectric strength of the insulator. This is troublesome for applications where high voltage conditioning of the insulator and electrodes is not practical and where relatively long pulses, on the order of several microseconds, are required. Here we give a summary of our approach to modeling and simulation efforts and experimental investigations for understanding flashover mechanism. The computational work is comprised of both filed and particle-in-cell modeling with state-of-the-art commercial codes. Experiments were performed in using an available 100- kV, 10- s pulse generator and vacuum chamber. The initial experiments were done with polyethylene insulator material in the shape of a truncated cone cut at +45 angle between flat electrodes with a gap of 1.0 cm. The insulator was sized so there were no flashovers or breakdowns under nominal operating conditions. Insulator flashover or gap closure was induced by introducing a plasma source, a tuft of velvet, in proximity to the insulator or electrode., See also ADM002371. 2013 IEEE Pulsed Power Conference, Digest of Technical Papers 1976-2013, and Abstracts of the 2013 IEEE International Conference on Plasma Science. IEEE International Pulsed Power Conference (19th). Held in San Francisco, CA on 16-21 June 2013., The original document contains color images.

Published
2007

23. The advanced helical generator

Author

Reisman, D. B., primary, Javedani, J. B., additional, Ellsworth, G. F., additional, Kuklo, R. M., additional, Goerz, D. A., additional, White, A. D., additional, Tallerico, L. J., additional, Gidding, D. A., additional, Murphy, M. J., additional, and Chase, J. B., additional

Published
2010
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24. Note: The full function test explosive generator

Author

Reisman, D. B., primary, Javedani, J. B., additional, Griffith, L. V., additional, Ellsworth, G. F., additional, Kuklo, R. M., additional, Goerz, D. A., additional, White, A. D., additional, Tallerico, L. J., additional, Gidding, D. A., additional, Murphy, M. J., additional, and Chase, J. B., additional

Published
2010
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26. UV Induced Insulator Flashover

Author

Javedani, J. B., primary, Houck, T.L., additional, Kelly, B.T., additional, Lahowe, D. A., additional, Shirk, M.D., additional, and Goerz, D.A., additional

Published
2008
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31. Magnetic Cusp Contours and Measured ECRH Surfaces

Author

Prelas, M.A., primary, Leal-Quiros, E., additional, Kunze, J.F., additional, Boody, F.P., additional, Miller, W., additional, Mosquera, M., additional, Javedani, J., additional, Pennington, T., additional, Hane, R., additional, Wei, W., additional, Burnett, J., additional, Dolan, T.J., additional, and Gu, A., additional

Published
1989
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33. Design And Construction Of A 1-MJDPF

Author

Del Medico, S., primary, Javedani, J., additional, Wimmer, R., additional, Neupert, D., additional, Barnoiun, O., additional, Burton, R., additional, Williams, M., additional, Bromley, B., additional, Mora, J., additional, and Miley, G.H., additional

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