Construction and experimental study of a 2.5kJ, simply configured, mather type plasma focus device

In this research, the effect of inserting deuterated solid target in plasma focus device 'SBUMTPF1' on neutron yield has been investigated. The deuterated target with the diameter of 2.5 cm was placed at different heights relative to the anode tip. In each height, the best place of target (where the ion density is highest) was found from observing the effects of ions struck on the aluminum samples. Also for each height, 20 shots were performed at the optimum pressure of deuterium working gas and operating voltage, which are equal to 1.5 mbar and 24 kV, respectively. The neutron production was measured with two activation counters, which placed in 0 • and 90 • relative to the anode axis. Neutron scattering from two activation counters was calculated with MCNP4C code and the results showed that this effect is negligible. In this article, the probability of implanting deuterium ions into the titanium target was also investigated. Deviation angle of the ion emission relative to the anode axis was measured experimentally in this research and it was about 3.1 • .

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“…1. Further details of this PF device can be found in our previous papers (Shirani et al 2010;Shahbazi et al 2011).…”

Section: Plasma Focus Device Specification and Diagnosticsmentioning

confidence: 99%

Investigation of deuterated target effects on neutron yield in plasma focus device SBUMTPF1

2014

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“…The electrical parameters of the PF, such as the plasma inductance and plasma resistance, are time-varying parameters that are affected by the variation in the charging voltage and the working gas pressure [11][12][13][14][15][16]. Experimental investigations show that the focus action in a PF device is affected by a number of factors, including the inner electrode (IE) length and material [17][18], the insulator sleeve length and material [19][20], the polarity of the IE [9] and the pressure of the filling gas [22][23]. The discharge current and tube discharge voltage are the basic measurements of the PF.…”

Section: Introductionmentioning

confidence: 99%

Plasma Current Sheath Dynamics and Energy Dissipation in a Low-Energy Plasma Focus Device

Lashin

Allam

Ahmed

et al. 2019

Arab Journal of Nuclear Sciences and Applications

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The present study reports the measurements of plasma current sheath (PCS) dynamics, the energy dissipation processes, and the plasma focus (PF) electrical characteristics, particularly during the axial phase discharge in a Mather-type PF device (EAEA-PF1) energized with a 30 µF capacitor bank charged with 8, 10 and 12 kV. All these investigations carried out under discharge conditions where the optimal PF action is achieved. At each charging voltage (V ch), 8 kV, 10 kV and 12 kV, the optimal PF action is studied at different argon gas pressures (P) ranging from 0.4 to 1.2 Torr. The results show that the best PF is formed at V ch = 8 kV and P = 0.6 Torr, V ch = 10 kV and P = 0.8 Torr, and V ch = 12 kV and P = 0.8 Torr. The implosion velocity (V z) results of PCS show that the maximum value of V z (4.48 cm/µs) occurs at the end of the axial phase (i.e., at the coaxial electrode muzzle), which is detected at V ch = 12 kV and P = 0.8 Torr. Moreover, a less inefficient snowplow action is observed under these discharge conditions. The energy dissipation process data indicate that at V ch = 12 kV and P = 0.8 Torr, the ratio between the total energy dissipation and the input energy has a maximum value of 90%, and the minimum residual energy left on the condenser bank (175.39 J) is also achieved under these discharge conditions.

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Investigation of Spatial Distribution of Hydrogen and Argon Ions and Effects of them on Aluminum Samples in a 2.5 kJ Mater Type Plasma Focus Device

2011

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Construction and experimental study of a 2.5kJ, simply configured, mather type plasma focus device

Cited by 9 publications

References 15 publications

Investigation of deuterated target effects on neutron yield in plasma focus device SBUMTPF1

Investigation of deuterated target effects on neutron yield in plasma focus device SBUMTPF1

Plasma Current Sheath Dynamics and Energy Dissipation in a Low-Energy Plasma Focus Device

Investigation of Spatial Distribution of Hydrogen and Argon Ions and Effects of them on Aluminum Samples in a 2.5 kJ Mater Type Plasma Focus Device

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