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Title: Particle beam fusion progress report for 1989

Abstract

This report summarizes the progress on the pulsed power approach to inertial confinement fusion. In 1989, the authors achieved a proton focal intensity of 5 TW/cm{sup 2} on PBFA-II in a 15-cm-radius applied magnetic-field (applied-B) ion diode. This is an improvement by a factor of 4 compared to previous PBFA-II experiments. They completed development of the three-dimensional (3-D), electromagnetic, particle-in-cell code QUICKSILVER and obtained the first 3-D simulations of an applied-B ion diode. The simulations, together with analytic theory, suggest that control of electromagnetic instabilities could reduce ion divergence. In experiments using a lithium fluoride source, they delivered 26 kJ of lithium energy to the diode axis. Rutherford-scattered ion diagnostics have been developed and tested using a conical foil located inside the diode. They can now obtain energy density profiles by using range filters and recording ion images on nuclear track recording film. Timing uncertainties in power flow experiments on PBFA-II have been reduced by a factor of 5. They are investigating three plasma opening switches that use magnetic fields to control and confine the injected plasma. These new switches provide better power flow than the standard plasma erosion switch. Advanced pulsed-power fusion drivers will require extraction-geometry applied-B ion diodes.more » During this reporting period, progress was made in evaluating the generation, transport, and focus of multiple ion beams in an extraction geometry and in assessing the probable damage to a target chamber first wall.« less

Authors:
 [1]
  1. ed.; Sandia National Labs., Albuquerque, NM (United States). Pulsed Power Sciences Center
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10185798
Report Number(s):
SAND-91-1556
ON: DE95000711; BR: GB0103012; TRN: 94:020351
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Aug 1994
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; INERTIAL CONFINEMENT; RESEARCH PROGRAMS; PARTICLE BEAM FUSION ACCELERATOR; PROGRESS REPORT; PLASMA DIAGNOSTICS; Q CODES; D CODES; ION BEAM FUSION REACTORS; THERMIONIC DIODES; LITHIUM IONS; ION BEAM TARGETS; DATA ANALYSIS; BEAM TRANSPORT; BEAM EXTRACTION; 700411; INERTIAL CONFINEMENT DEVICES

Citation Formats

Sweeney, M A. Particle beam fusion progress report for 1989. United States: N. p., 1994. Web. doi:10.2172/10185798.
Sweeney, M A. Particle beam fusion progress report for 1989. United States. https://doi.org/10.2172/10185798
Sweeney, M A. 1994. "Particle beam fusion progress report for 1989". United States. https://doi.org/10.2172/10185798. https://www.osti.gov/servlets/purl/10185798.
@article{osti_10185798,
title = {Particle beam fusion progress report for 1989},
author = {Sweeney, M A},
abstractNote = {This report summarizes the progress on the pulsed power approach to inertial confinement fusion. In 1989, the authors achieved a proton focal intensity of 5 TW/cm{sup 2} on PBFA-II in a 15-cm-radius applied magnetic-field (applied-B) ion diode. This is an improvement by a factor of 4 compared to previous PBFA-II experiments. They completed development of the three-dimensional (3-D), electromagnetic, particle-in-cell code QUICKSILVER and obtained the first 3-D simulations of an applied-B ion diode. The simulations, together with analytic theory, suggest that control of electromagnetic instabilities could reduce ion divergence. In experiments using a lithium fluoride source, they delivered 26 kJ of lithium energy to the diode axis. Rutherford-scattered ion diagnostics have been developed and tested using a conical foil located inside the diode. They can now obtain energy density profiles by using range filters and recording ion images on nuclear track recording film. Timing uncertainties in power flow experiments on PBFA-II have been reduced by a factor of 5. They are investigating three plasma opening switches that use magnetic fields to control and confine the injected plasma. These new switches provide better power flow than the standard plasma erosion switch. Advanced pulsed-power fusion drivers will require extraction-geometry applied-B ion diodes. During this reporting period, progress was made in evaluating the generation, transport, and focus of multiple ion beams in an extraction geometry and in assessing the probable damage to a target chamber first wall.},
doi = {10.2172/10185798},
url = {https://www.osti.gov/biblio/10185798}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Aug 01 00:00:00 EDT 1994},
month = {Mon Aug 01 00:00:00 EDT 1994}
}