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Title: Ion beam and neutron output from a sub-kilojoule dense plasma focus

We are seeking to gain a better fundamental understanding of the ion beam acceleration and neutron production dense plasma focus (DPF) device. Experiments were performed on a kilojoule level, fast rise time DPF located at LLNL. Ion beam spectra and neutron yield were measured for deuterium pinches. Visible light images of the pinch are used to determine the pinch length. In addition, an RF probe was placed just outside the cathode to measure fluctuations in E{sub z} up to 6 GHz, which is within the range of the lower hybrid frequencies. We find these oscillations arise at a characteristic frequency near 4 GHz during the pinch. Comparisons of the neutron yield and ion beam characteristics are presented. The neutron yield is also compared to scaling laws.
Authors:
; ; ;  [1]
  1. Lawrence Livermore National Laboratory, Livermore, CA 94550 (United States)
Publication Date:
OSTI Identifier:
22390822
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1639; Journal Issue: 1; Conference: 9. International Conference on Dense Z Pinches, Napa, CA (United States), 3-7 Aug 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCELERATION; COMPARATIVE EVALUATIONS; DEUTERIUM; GAIN; GHZ RANGE; ION BEAMS; LAWRENCE LIVERMORE NATIONAL LABORATORY; LOWER HYBRID CURRENT DRIVE; LOWER HYBRID HEATING; NEUTRONS; OSCILLATIONS; PINCH DEVICES; PINCH EFFECT; PLASMA DENSITY; PLASMA FOCUS; PLASMA PRODUCTION; PULSE RISE TIME; SCALING LAWS; VISIBLE RADIATION