A KPU-200 movable capacitor installation

Маслов, В. А.; Rumyantsev, V. G.; Basmanov, V.; Budnikov, D.; Garin, A. V.; Drozdov, I. Yu.; Ershov, D. A.; Korkin, D. S.; Makeev, N. G.; Molodtsev, D. A.; Moskvin, N. I.; Nazarenko, S.; Petrushin, O. N.; Falin, A. P.; Yukhnevich, V. A.

doi:10.1134/s0020441214010254

Cited by 7 publications

(7 citation statements)

References 2 publications

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“…The Lee Code computes both the thermonuclear, as well as the beam-target component of neutron yield. Neutron yields produced by the code configured to specific machines have shown reasonable agreement for the following machines: PF1000 [10], PF-400J [279], NX2 [253,[280][281][282], Mexico FNII [280,283], FMPF-3, NX3 [282],GN1 [284], ICPF [285], BARCPF2 [286], PF50 [275], Tsinghua Uni DPF2.2 [275], Texas 126 kJ TAMU [275], POSEIDON [275], UMDPF1 [275], UMDPF2 [275], Assam DPF [275], DPF78 [275], BORA [287] and PF24 [288], and in the KPU200 [247,289,290] at the level of 10 13 D-T neutrons per shot. A comparison of computed vs. measured neutron yield is shown in Figure 43.…”

Section: Neutron Yieldsmentioning

confidence: 99%

“…The spherical PF is very compact with respect to the standard geometries (useful in some applications) and has a neutron production of the same level. For instance [289,290] a spherical PF with 16 cm diameter of the internal sphere and 29 The internal sphere is supported by a metallic rod, passing through a hole in the external sphere, connected to the HV generator and surrounded by an insulator allowing the electrical insulation of the two spheres. When the high voltage is applied, the discharge develops on the insulator and travels between the surfaces of the two spheres starting from the north pole (first antipodal), passing through the equator and collapsing in the south pole (second antipodal).…”

Section: Exploration Of Un-conventional Plasma Focus Geometriesmentioning

confidence: 99%

“…The spherical PF is very compact with respect to the standard geometries (useful in some applications) and has a neutron production of the same level. For instance [289,290] a spherical PF with 16 cm diameter of the internal sphere and 29 cm of the external sphere (which also serves as the vacuum chamber), operating at 1.4 MA produces 8 × 10 10 neutrons in DD and operating at 1.5 MA produces 1.3 × 10 13 neutrons in DT. Additionally, the proportionality of the neutron production to the fourth power of the current is preserved.…”

Section: Exploration Of Un-conventional Plasma Focus Geometriesmentioning

confidence: 99%

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Update on the Scientific Status of the Plasma Focus

Auluck

Kubeš

Paduch

et al. 2021

Plasma

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This paper is a sequel to the 1998 review paper “Scientific status of the Dense Plasma Focus” with 16 authors belonging to 16 nations, whose initiative led to the establishment of the International Center for Dense Magnetized Plasmas (ICDMP) in the year 2000. Its focus is on understanding the principal defining characteristic features of the plasma focus in the light of the developments that have taken place in the last 20 years, in terms of new facilities, diagnostics, models, and insights. Although it is too soon to proclaim with certainty what the plasma focus phenomenon is, the results available to date conclusively indicate what it is demonstrably not. The review looks at the experimental data, cross-correlated across multiple diagnostics and multiple devices, to delineate the contours of an emerging narrative that is fascinatingly different from the standard narrative, which has guided the consensus in the plasma focus community for several decades, without invalidating it. It raises a question mark over the Fundamental Premise of Controlled Fusion Research, namely, that any fusion reaction having the character of a beam-target process must necessarily be more inefficient than a thermonuclear process with a confined thermal plasma at a suitably high temperature. Open questions that need attention of researchers are highlighted. A future course of action is suggested that individual plasma focus laboratories could adopt in order to positively influence the future growth of research in this field, to the general benefit of not only the controlled fusion research community but also the world at large.

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Section: Neutron Yieldsmentioning

confidence: 99%

Section: Exploration Of Un-conventional Plasma Focus Geometriesmentioning

confidence: 99%

“…The spherical PF is very compact with respect to the standard geometries (useful in some applications) and has a neutron production of the same level. For instance [289,290] a spherical PF with 16 cm diameter of the internal sphere and 29 cm of the external sphere (which also serves as the vacuum chamber), operating at 1.4 MA produces 8 × 10 10 neutrons in DD and operating at 1.5 MA produces 1.3 × 10 13 neutrons in DT. Additionally, the proportionality of the neutron production to the fourth power of the current is preserved.…”

Section: Exploration Of Un-conventional Plasma Focus Geometriesmentioning

confidence: 99%

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Update on the Scientific Status of the Plasma Focus

Auluck

Kubeš

Paduch

et al. 2021

Plasma

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“…In this work, I use the Spherical Plasma Focus, KPU200 SPF for the numerical studies of the ion beam flux, fluence, and energy in various gases including N2, Ne, and Ar with pressure variation. The electrode geometry has been obtained by applying the 'equivalent straightened electrode' technique to this SPF device [24]- [25], [34]. The Lee code is configured to conduct the numerical experiments using the following standard parameters of this device [34] These model parameters have been obtained by fitting the computed current trace with the measured one at 14.3 Torr D-T in KPU200 SPF [33]- [34].…”

Section: Methods Used In Numerical Experimentsmentioning

confidence: 99%

“…Ion beam characteristics have been studied in Mather and Flippov type devices using this code. The KPU200 is a spherical plasma focus device which is designed mainly for neutron production [24]- [25]. The electrode (anode & cathode) geometry, static inductance, operating voltage, and pressure change of different gases were studied for neutron and ion production [26]- [27], X-ray emissions (continuum and line radiations) [28]- [30] in this device.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Ion Beam for Various Gases in a Spherical Plasma Focus Device

Malek

2022

J. eng. adv.

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This study presents the computed ion beam properties (flux, fluence, and energy) of argon, neon, and nitrogen gases with pressure variation in the spherical plasma focus device, KPU200 SPF. Numerical experiments are performed using the Lee code (version: RADPFV5.16FIB) with the gases in the pressure range of 0.10 - 19 Torr. The electrode geometry has been obtained by applying the ‘equivalent straightened electrode’ technique. The computed results for each of the gases show that the ion beam properties increase with the increase in pressure until reach a peak value and then start to reduce with further pressure increase. The peak ion beam flux (ions m-2 s-1), fluence (ions m-2), and energy (J) from heavier argon pinch plasma are found as 5.31 × 1027 at 2 Torr, 8.93 × 1020 at 3.5 Torr, and 3.46 × 104 at 3 Torr, respectively which are the utmost values from neon and nitrogen gases. Significant correlations of pinch radius and duration, effective charge number, and induced voltage with these ion beam properties are noticed and discussed in this paper. The obtained results of this study are compared with those of the NX2 plasma focus device that makes the consistency of the present research work.

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The Plasma Focus—Numerical Experiments, Insights and Applications

Lee

Saw

2017

Plasma Science and Technology for Emerging Economies

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A KPU-200 movable capacitor installation

Cited by 7 publications

References 2 publications

Update on the Scientific Status of the Plasma Focus

Update on the Scientific Status of the Plasma Focus

Characteristics of Ion Beam for Various Gases in a Spherical Plasma Focus Device

The Plasma Focus—Numerical Experiments, Insights and Applications

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