Multiple DD fusion events at interelectrode media of nanosecond vacuum discharge

Kurilenkov, Yu. K.; Skowronek, M.; Dufty, James W.

doi:10.1088/0305-4470/39/17/s11

Cited by 24 publications

(77 citation statements)

References 23 publications

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“…PIC simulations have assisted in understanding some effects observed in the experiments earlier [9]. For example, the shapes of some PIC non-Maxwellian distribution functions are in correlation with a "plateau" in histograms for fast ions tracks observed in the experiments (see fig.8 at [9]).…”

Section: Introductionmentioning

confidence: 85%

“…The energetic ions and DD neutrons from microfusion at the interelectrode space of a low energy nanosecond vacuum discharge has been demonstrated recently [8,9]. The efficiency of hard X-rays and fast ions generation by nanosecond vacuum discharge, as well as the neutron generation, is at least two orders of magnitude higher than for experiments on DD fusion driven by Coulomb explosion of laser irradiated deuterium clusters [3].…”

Section: Introductionmentioning

confidence: 99%

“…As a result, head-on collisions of D + ions with energies of a few tens of keV is followed by DD nuclear fusion, transforming the interelectrode space into something like a reactor chamber. PIC modeling allows the identification of the small-scale experiment [8][9][10] with a rather old branch of plasma physics, as inertial electrostatic confinement fusion (IECF) system (see [11][12][13][14] and refs therein). Pioneers of IECF were O. Lavrent'ev in the USSR and F. Farnsworth in the USA, but due to different reasons, including a rather low value for Q = E fusion / E input ∼ 10 −6 or even less, this concept for fusion was almost forgotten.…”

Section: Introductionmentioning

confidence: 99%

“…The source (Fig.1) is based on an electrical discharge having a rise time of about 10 nsec [8,9]. Set-up consists of a cylindrical vacuum chamber (diameter 50 mm) having three windows closed by Mylar films 70 μm thick.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to representing the key points of general physical picture, computer modelling allows clarification of the details of the experimental data. To explain the nature of fusion at experiments with nanosecond vacuum discharge [8,9], just the limited number of PIC 2D calculations results are presented and discussed www.cpp-journal.org below. First, discharge geometry and particle dynamics are shown on fig.4.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Warm Dense Matter Generation and DD Synthesis at Vacuum Discharge with Deuterium‐Loaded Pd Anode

Kurilenkov

Тараканов

Gus’kov

et al. 2011

Contrib. Plasma Phys.

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The energetic ions and DD neutrons from microfusion at the interelectrode space of a low energy nanosecond vacuum discharge with deuterium-loaded Pd anode has been demonstrated recently. To understand better the physics of fusion processes the detailed PIC simulation of the discharge experimental conditions have been developed using a fully electrodynamic code KARAT. The dynamics of main charge particle species was reconstructed in time and interelectrode space. The principal role of a virtual cathode (VC) and the corresponding single and double potential well formed in the interelectrode space are recognised. The calculated depth ϕ of the quasistationary potential well (PW) of the VC is about 50-60 kV, and the D + ions being trapped by this well accelerate up to energy values needed to provide collisional DD nuclear synthesis. Both experiment and PIC simulations illustrate very favourable scaling of the fusion power density at decreasing of VC radius ( ∼ ϕ 2 /r 4 V C ) for the chosen inertial electrostatic confinement fusion scheme based on miniature nanosecond vacuum discharge. Meanwhile, the initial stage of discharge is understood still poorly. When voltage is applied, the electron beam extracted from cathode starts to interact with the surface of deuterium-loaded Pd anode. This early stage of discharge manifests sometime the peaks registered by photomultipliers which are similar to neutron ones from time-of-flight measure under the study of collisional DD synthesis at the further stages of discharge. The detailed study of Pd anode surface morphology have been performed and recognized, in particular, the number of various pores and craters of different sizes. We remark that besides of rather usual craters (due to electron beams -anode interaction) some of the craters on the Pd anode surface may correspond to anode ectons (explosive centres) and consider their possible nature. Specifics of warm dense matter (WDM) generated at different stage of discharge is discussed. The data obtained are compared with recent results on initiation of DD reactions by electron beams at deuterium -loaded Pd foils and correspondent data on their surface morphology.

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Section: Introductionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Warm Dense Matter Generation and DD Synthesis at Vacuum Discharge with Deuterium‐Loaded Pd Anode

Kurilenkov

Тараканов

Gus’kov

et al. 2011

Contrib. Plasma Phys.

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Oscillating ions under Inertial Electrostatic Confinement (IEC) based on nanosecond vacuum discharge

Kurilenkov

Тараканов

Gus'kov

et al. 2018

Contributions to Plasma Physics

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Neutrons from DD fusion in the interelectrode space of a table-top, low-energy, nanosecond vacuum discharge with a deuterium-loaded Pd anode have been demonstrated earlier. In addition, the principal role of a virtual cathode and the corresponding deep potential well formed in the interelectrode space are recognized under detailed particle-in-cell simulations of the discharge experimental conditions using a fully electrodynamic code. PIC modelling has allowed the identification of the scheme of small-scale experiments with a rather old branch of plasma physics as the inertial electrostatic confinement fusion. The goal of this work is to present and discuss in detail the available experimental results on deuteron oscillations followed by pulsating DD neutron yield in this scheme based on nanosecond vacuum discharge. PIC simulations of some experimental regimes of pulsating neutron yield are also shown and discussed, as well as comparisons with an available similar scheme of periodical oscillating plasmas spheres for fusion. KEYWORDS inertial electrostatic confinement, neutron yield, virtual cathode 1 Contrib. Plasma Phys. 2018;58:952-960 www.cpp-journal.org

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X-ray Bursts from a Random Cavity Emerging in an Inter-Electrode Polydisperse Plasma of Nanosecond Vacuum Discharge. I. Experiment: Generation, Release, and Trapping of X rays

et al. 2020

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Multiple DD fusion events at interelectrode media of nanosecond vacuum discharge

Cited by 24 publications

References 23 publications

Warm Dense Matter Generation and DD Synthesis at Vacuum Discharge with Deuterium‐Loaded Pd Anode

Warm Dense Matter Generation and DD Synthesis at Vacuum Discharge with Deuterium‐Loaded Pd Anode

Oscillating ions under Inertial Electrostatic Confinement (IEC) based on nanosecond vacuum discharge

X-ray Bursts from a Random Cavity Emerging in an Inter-Electrode Polydisperse Plasma of Nanosecond Vacuum Discharge. I. Experiment: Generation, Release, and Trapping of X rays

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