Theoretical and experimental study of plasma dynamics in PF-1000 facility

Stępniewski, W.; Scholz, M.; Bienkowska, B.; Ivanova‐Stanik, I.; Paduch, M.; Sadowski, M.

doi:10.1007/s10582-006-0229-9

Cited by 3 publications

(1 citation statement)

References 3 publications

(7 reference statements)

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“…electrode configurations). However, both types have three main operation phases [5,8]. The initial phase is known as the breakdown phase, in which a 3D cylindrical current sheath is formed just on the insulator and the lift-off stage occurs due to the Lorentz force [9].…”

Section: Introductionmentioning

confidence: 99%

Preliminary plasma focus studies at ODAK-3K device using track detectors

Akgun

Bolukdemir

Kurt

et al. 2009

Plasma Devices and Operations

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In this study, a newly-constructed plasma focus (PF) device ODAK-3K is introduced to the literature and some results of first fusion research realized in this device are reported. The device has a maximal energy input of 3 kJ and is used for both plasma and D-D reaction explorations. Experiments with deuterium have shown that peak current of I peak = 39 kA flows between the electrodes at P = 11.5 mbar for the operation voltage of V = 14 kV. An average total neutron yield is measured around 3.3 × 10 5 neutrons per shot using CR-39 plastic detectors located in different places opposite to the anode inside the PF chamber. Neutron anisotropy and pressure-dependent neutron yields are also determined for a series of shots.

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Section: Introductionmentioning

confidence: 99%

Preliminary plasma focus studies at ODAK-3K device using track detectors

Akgun

Bolukdemir

Kurt

et al. 2009

Plasma Devices and Operations

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show abstract

Dynamics of plasmas produced by a laser pulse, inside a dense gaseous target, formed in an ambient gas

et al. 2022

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In this work, the time development of plasmas produced by interaction of laser pulses, with a nitrogen gas, was investigated. The interaction took place inside a small portion of dense nitrogen gas injected temporarily into a chamber filled with the gas under low pressure. High-temperature plasmas produced directly by the laser pulse were a source of soft x rays and charged particles, ionizing and exciting the surrounding gas. In this way, low-temperature plasmas were produced. The formation of high-temperature plasmas was studied using soft x-ray spectroscopy and x-ray streak imaging. Low-temperature plasmas formed at various distances from the laser focus were investigated using an optical streak camera. Interpretation of the experimental data was supported by numerical modeling of the laser-produced plasma hydrodynamics. It was concluded that depending on the distance from the focal spot, the formation of the low-temperature plasmas was dominated by ion streams or by soft x-ray radiation.

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Spatial and temporal evolution of laser plasma produced using a double-stream gas puff target

Bartnik,

Jach,

Świerczyński

et al. 2023

Physics of Plasmas

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Laser plasma produced using a double-stream gas puff target is an intense source of soft x-ray (SXR) and extreme ultraviolet (EUV) radiation, however, without the harmful emission of debris associated with a solid target. Debris-free laser plasma x-ray and EUV sources have been applied in many various applications, including metrology, imaging in a nanoscale, tomography, processing materials, emission and absorption spectroscopy, laboratory astrophysics and astrochemistry, radiobiology, and radiochemistry. In this work, the results of the experimental and theoretical studies on the spatial and temporal evolution of laser plasma produced as a result of irradiation of an argon/helium gas puff target with laser pulses of 1.3 or 6 ns time duration generated with an Nd:YAG laser system are presented. Imaging and spectral measurements of SXR emission from the plasma, created in the double-stream gas puff target, have been performed with the use of an x-ray streak camera. The analysis of the results of spectral measurements, supported by numerical simulations of plasma x-ray emission, allowed the estimation of the plasma electron temperature and its changes over time. Experimental data were compared with the results of theoretical studies performed using a computer model of plasma hydrodynamics. It was shown that plasma expansion is fast enough to reduce the plasma density in the laser focus area during the laser–plasma interaction.

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Theoretical and experimental study of plasma dynamics in PF-1000 facility

Cited by 3 publications

References 3 publications

Preliminary plasma focus studies at ODAK-3K device using track detectors

Preliminary plasma focus studies at ODAK-3K device using track detectors

Dynamics of plasmas produced by a laser pulse, inside a dense gaseous target, formed in an ambient gas

Spatial and temporal evolution of laser plasma produced using a double-stream gas puff target

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