Magnetically Induced Plasma Rotation and the Dense Plasma Focus

1983 ◽  
Vol 38 (9) ◽  
pp. 949-958 ◽  
Author(s):  
E. A. Witalis
Keyword(s):  
Plasma Focus ◽  
Dense Plasma ◽  
Ion Beam ◽  
Plasma Heating ◽  
Ion Acceleration ◽  
Current Channel ◽  
Plasma Rotation ◽  
Fusion Research ◽  
Focus Plasma ◽  
Further Development

Abstract Fusion for Fission fuel breeding and other incentives for unconventional magnetic fusion research are introductorily mentioned. The design, operation and peculiar characteristics of dense plasma foci are briefly described with attention to their remarkable ion acceleration and plasma heating capabilities. Attempts for interpretations are reviewed, and a brief account is given for an explanation based on the concept of magnetically induced plasma rotation, recently derived in detail in this journal. Basically an ion acceleration mechanism of betraton character it describes in combination with a dynamic, generalized Bennett relation focus plasma characteristics like the polarity dependence, the current channel disruption, the axial ion beam formation and the prerequisites for the ensuing turbulent plasma dissipative stage. Fundamental differences with respect to mainline fusion research are emphasized, and some conjectures and proposals are presented as to the further development of plasma focus nuclear fusion or fission energy production.

Fabrication of DLC films by pulsed ion beam ablation in a dense plasma focus device

2009 ◽  
Vol 373 (45) ◽  
pp. 4169-4173 ◽  
Author(s):  
Z.P. Wang ◽  
H.R. Yousefi ◽  
Y. Nishino ◽  
H. Ito ◽  
K. Masugata
Keyword(s):  
Plasma Focus ◽  
Dense Plasma ◽  
Ion Beam ◽  
Plasma Focus Device ◽  
Dense Plasma Focus

Ion beam generating mechanism in dense plasma focus

2002 ◽  
Author(s):  
G. Nakafuji ◽  
R. Faehl ◽  
K. McLenithan ◽  
M. Sheppard ◽  
Chan Choi ◽  
...  
Keyword(s):  
Plasma Focus ◽  
Dense Plasma ◽  
Ion Beam ◽  
Dense Plasma Focus

scholarly journals Effect of Atomic Number on Plasma Pinch Properties and Radiative Emissions

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Walid Sahyouni ◽  
Alaa Nassif
Keyword(s):  
Atomic Number ◽  
Plasma Focus ◽  
Dense Plasma ◽  
Ion Beam ◽  
Hydrogen Plasma ◽  
Argon Plasma ◽  
The State ◽  
Dense Plasma Focus ◽  
Radiation Emission ◽  
Plasma Pinch

The aim of the research is to examine the dependence of plasma pinch properties and radiation emissions on the atomic number of the operating gas within the dense plasma focus device (NX2) when using hydrogen and argon gases. Simulation was performed with Lee’s code on an NX2 dense plasma focus at a constant gas pressure value ( P 0 = 0.5   torr ). The results showed that the minimum radius of the plasma focus in the case of the hydrogen plasma pinch was 0.30 cm and in the case of the argon plasma pinch 0.17 cm, and this affected the value of the radiation emission as it was 7.8 × 10 − 6   J and 11 J for the hydrogen and argon pinch, respectively. The energy of the ion beam released by the breakdown of the plasma pinch was found as E n = 23.8   J in the state of hydrogen and E n = 105   J in the state of argon.

scholarly journals Ion Beam Emission within a Low Energy Focus Plasma (0.1 kJ) Operating with Hydrogen

2010 ◽  
Vol 65 (6-7) ◽  
pp. 606-612 ◽  
Author(s):  
Gamal M. El-Aragi
Keyword(s):  
Plasma Focus ◽  
Ion Beam ◽  
Hydrogen Gas ◽  
Low Energy ◽  
Focus Formation ◽  
Optimum Pressure ◽  
Time Resolved ◽  
Focus Plasma ◽  
Type Device ◽  
Center Electrode

An investigation of energetic ion beam emission from a low energy plasma focus (0.1 kJ Mather type) device operating with hydrogen gas is studied. The ion beam emission is investigated using time-integrated and time-resolved detectors. The present plasma focus device is powered by a capacitor bank of 1 μF at 18 kV maximum charging voltage. The correlation of ion beam intensity with filling gas pressure indicates that the beam emission is maximized at the optimum pressure for the focus formation at peak current. Energy of ions is determined with a time-of-flight (TOF) method, taking into account distance from the center electrode to the detection plane.

scholarly journals Ion beam measurement using Rogowski coils in a hundred of joules dense plasma focus device.

2016 ◽  
Vol 720 ◽  
pp. 012042 ◽  
Author(s):  
J. Jain ◽  
J. Moreno ◽  
C. Pavez ◽  
B. Bora ◽  
M. J. Inestrosa-Izurieta ◽  
...  
Keyword(s):  
Plasma Focus ◽  
Dense Plasma ◽  
Ion Beam ◽  
Plasma Focus Device ◽  
Dense Plasma Focus ◽  
Rogowski Coils

scholarly journals Role of static inductance on ion beam emission in plasma focus devices

2012 ◽  
Vol 78 (5) ◽  
pp. 585-588 ◽  
Author(s):  
FARZIN M. AGHAMIR ◽  
REZA A. BEHBAHANI
Keyword(s):  
Plasma Focus ◽  
Dense Plasma ◽  
Ion Beam ◽  
Pressure Variation ◽  
Gas Pressure ◽  
Operating Pressure ◽  
Anomalous Resistivity ◽  
Dense Plasma Focus ◽  
Beam Production

AbstractThe role of static inductance on ion beam emission in plasma focus devices, based on anomalous resistivity, is reported. The effect of gas pressure variation on the process of energy transfer into plasma is investigated and discussed by using Lee's model. The dependence of ion beam production on filling gas pressure along with change in static inductance is studied. The results show that increase of static inductance in a specific range of operating pressure can enhance the efficiency of dense plasma focus device.

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