Design and Construction of the 5 kJ Filippov-Type Plasma Focus with Brass Anode

Damideh, Vahid; Tafreshi, M. A.; Heidarnia, A.; Asle-Zaeem, A.; Sadighzadeh, A.

doi:10.1007/s10894-011-9403-6

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…After the first electrical discharge (shot); due to bombarding anode surface with high-energy electrons, anode surface atoms are separated and enter the chamber. The gas pressure inside the chamber; due to anode material and pollutions of the chamber inner surface, increases in about 1 mbar [21,23,24]. Performing next electrical discharges, the pressure increase will be less.…”

Section: Preliminary Results Of the Uipff1mentioning

confidence: 99%

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Design and Construction of a 20- KJ Filippov-Type Plasma Focus

Ghanei¹,

Abdi

Shirani³

2014

AJPA

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UIPFF1 is a new Filippov-type plasma focus facility, constructed and built in Esfahan University. This paper reports on the design of the UIPFF1. The main stages of the construction, design and the preliminary X-ray detection tests on the UIPFF1 are mentioned concisely. Measurement results show that in a typical discharge experiment, the discharge current =181 kA, period of current signal = 7.9 µs, the total inductance of the device =132 nH and electrical resistance of the circuit = 77 mΩ. The calibration factor is measured as 121 kA/V by averaging from data obtained with a set of 5 experiments. Temporal changes in plasma focus discharge current, confirmed occurrence pinch at a specific pressure of argon, neon and nitrogen gases.

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Section: Preliminary Results Of the Uipff1mentioning

confidence: 99%

“…Plasma focus device of UIPFF1 was designed and built in the energy range of 20 kJ. Design of facility components based on ML and a number of empirical relationships have been confirmed in various plasma focus facilities [17,20,21]. Usually it is done an initial design in manufacturing a plasma focus device.…”

Section: Introductionmentioning

confidence: 99%

Design and Construction of a 20- KJ Filippov-Type Plasma Focus

Ghanei¹,

Abdi

Shirani³

2014

AJPA

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“…The brass anode leads to increasing emissions such as neutrons and particularly X-rays. Because the brass anode has low sputtering than copper; therefore, increases neutron yield [4]. Also the brass made up of two components: copper and zinc, where the later has an upper atomic number than former thus, causes to increase X-ray emission.…”

Section: Design and Construction Of The Devicementioning

confidence: 99%

“…Production of short-lived hot and dense plasma column produced by the electromagnetic acceleration of the current sheath is the specific role of the plasma focus (PF) devices [1][2][3][4]. This plasma column is hot enough to produce X-rays emission [5] and fusion products like neutrons and 3 He, in case of using deuterium filling gas.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Results of the 115 kJ Dense Plasma Focus Device IR-MPF-100

et al. 2012

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This work summarizes the design and construction of the first Iranian 115 kJ Mather type plasma focus (PF) machine (IR-MPF-100). This machine consists of a 6.25 cm radius and 22 cm height brass made anode with a 50 mm height insulator which separates the anode and cathode electrodes. Twelve copper made 22 cm height rods play the role of cathode with 10.2 cm radius. Twenty four 6 lF capacitors were used with the maximum charging voltage of 40 kV (maximum energy of 115 kJ) as the capacitor bank and maximum theoretical current around 1.224 MA. The total inductance of the system is 120 nH. By using NE-102 plastic Scintillator, Rogowski coil, current and voltage probes, hard X-ray, current derivative, current and voltage signals of IR-MPF-100 were measured. The primary result of neutron detection by neutron activation counter represents approximately 10 9 neutrons per shot at 65 kJ discharge energy while using deuterium filling gas. Also IR-MPF-100 PF has been tested successfully at 90 kJ by using the argon gas.

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