Anode Shape and Hollow Effects on Neutron Yield in a 4.4 kJ Dense Plasma Focus Device

POSTER

Abstract

Dense Plasma Focus (DPF) is a Z-pinch configuration that consists of coaxial electrodes that guide a dynamic plasma sheath along the anode, resulting in a hot dense pinch near the anode tip. A DPF can produce X-rays, energetic ions, and high intensity fast neutron pulses depending on the fill gas. We report on experiments using a 4.4 kJ Mather-type DPF exploring the role of anode geometry with a focus on curved and flat anodes with and without a hollow center, such as highlighted in recent studies1,2. The dynamics of the collapsing plasma are described in terms of the contribution of anode geometry and deuterium pressure. The resulting pinch structure is quantified optically and neutron yields, as measured by a Be-activation detector, will be described.

1. A. Link et al., AIP Conf. Proc. 1639, 23 (2014)

2. B. H. Shaw et al., J. Appl. Phys. 124, 233301 (2018)

*Work supported by the Air Force Office of Scientific Research FA9550-18- S0003.

Presenters

  • Veronica Eudave

    • University of California, San Diego

Authors

  • Veronica Eudave

    • University of California, San Diego

  • Eric Hahn

    • University of California San Diego
    • University of California, San Diego

  • Swarvanu Gosh

    • University of California San Diego
    • University of California, San Diego

  • Jeff Narkis

    • University of California San Diego
    • University of California, San Diego

  • Fabio Conti

    • University of California, San Diego
    • University of California San Diego

  • Farhat N Beg

    • University of California San Diego
    • University of California, San Diego
    • Center for Energy Research,University of California, San Diego, USA.