Results 241 to 250 of about 181,532 (295)

Neutron emission studies in dense plasma focus

AIP Conference Proceedings, 1989
Neutron emission studies in dense plasma focus under low pressure and high pressure operation has been carried out. Parametric studies of dynamic behavior of plasma focus also has been made by means of laser holographic interferometry, nuclear activation methods and neutron T. O. F detection including pinhole camera.
M. Yokoyama, Y. Kitagawa, Y. Yamada
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Infrared radiation from the dense plasma focus

The Physics of Fluids, 1974
Experimental observations of infrared emission (2-10.6 μm) from a dense plasma focus have been made, along with the standard diagnostics of neutrons, x rays, and visible light. The thermal bremsstrahlung spectrum has been observed over the range 2 μm ≲ λ ≲ 6.5 μm.
Richard S. Post, T. C. Marshall
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A high-neutron-output dense plasma focus

Physics Letters A, 1988
Abstract A 1.4 kJ ultra-clean Mather-type dense plasma focus has produced 14 MeV neutrons on over 600 consecutive shots without a misfire and without purging the gas. The D-T neutron output decreased from (3.4 ± 0.7) × 109 to (2.1±0.6) × 109. After 650 shots, the original D-T neutron output was restored by purging hydrogen and helium gas.
E.J.T. Burns, S.M. Falacy, R.A. Hill, P.D. Thacher, H.A. Koehler, B. Davis, R.E. Shafer   +6 more
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Dense plasma-focus research in Poland

IEEE Conference Record - Abstracts. 1997 IEEE International Conference on Plasma Science, 2002
Summary form only given. Recent plasma focus (PF) experiments, as performed with different PF facilities of energy from 2 kJ to 440 kJ, are compared. The MAJA machine, operated up to 60 kJ/35 kV, is used for X-ray and fast e-beams studies. X-rays are measured with pinhole cameras and scintillation detectors with foil filters.
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Dense plasma in Z-pinches and the plasma focus

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1981
Many of the earliest experiments in controlled thermonuclear fusion research were Z -pinches. However these pinches were found to be highly unstable to the m = 0, the m — 1 (kink), and the Rayleigh-Taylor instability.
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Characteristics of the Dense Plasma Focus Discharge

The Physics of Fluids, 1968
The dense plasma focus discharge is produced in a hydromagnetic coaxial plasma accelerator. The final heating and compression of the plasma is accomplished by a partial conversion of the stored magnetic energy residing in the region behind the current sheath to plasma energy.
Joseph W. Mather, Paul J. Bottoms
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Dense plasma focus-assisted nitriding of AISI-304

Radiation Effects and Defects in Solids, 2008
Nitrogen ion implantation into AISI-304 stainless steel is carried out using a dense plasma focus device, operated at a charging voltage of 18 kV (discharge energy=1.45 kJ) with nitrogen filling at optimum pressure of 0.75 mbar. AISI-304 stainless steel samples placed axially above the anode tip are exposed to the ions for 10, 20 and 30 focus shots.
M. Shafiq, M. Asghar, S. Ahmad, M. Sadiq, A. Qayyum, M. Zakaullah   +5 more
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Neutron Yield in a Repetitive Dense Plasma Focus

Japanese Journal of Applied Physics, 1982
A first, preliminary result of the neutron yield from a repetitively produced dense plasma focus is reported, where the repetitive focalization of plasma is performed at the top end of the inner electrode of the plasma focus device. The number of repetitions of plasma was elected to be more than 10 in a single discharge of the capacitor bank.
Isao Ueno, Kazunari Ikuta, Yuichi Taguchi, Mitsumori Tanimoto, Masaharu Nakazawa, Giyuu Kido   +5 more
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X-Ray Spectra from Dense Plasma Focus Devices

The Physics of Fluids, 1970
X-ray spectra with energies up to 350 keV are reported for two paraboloidal plasma focus devices, the Mark I and Mark III device. Low energy x rays with energies between 5.46 and 29.2 keV were measured with Ross filters. Both time resolved and time integrated spectra were obtained.
H. L. L. Van Paassen, R. H. Vandre, R. Stephen White   +2 more
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Initial conditions in the hawk dense plasma focus

2019 IEEE Pulsed Power & Plasma Science (PPPS), 2019
The 670 kA Hawk pulsed power generator at NRL has been configured as a fast (1.2 µs rise time), high inductance (607 nH) driver for a dynamic dense plasma focus (DPF) load in order to create a testbed for the study of charged particle acceleration mechanisms in imploding plasmas. The current pulse is initiated in a deuterium plasma injected radially by
J. T. Engelbrecht, S. L. Jackson, A. A. Mamonau, A. R. Beresnyak, K. Rezac, J. Cikhardt, D. Klir, B. V. Weber, J. L. Giuliani, J. W. Schumer   +9 more
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