Estimation of the Current Sheath Dynamics and Magnetic Field for Theta Pinch by Snow Plow Model Simulation

2019 ◽  
Vol 38 (5-6) ◽  
pp. 539-547
Author(s):  
F. A. Ebrahim ◽  
W. H. Gaber ◽  
M. E. Abdel-kader
Keyword(s):  
Magnetic Field ◽  
Model Simulation ◽  
Current Sheath ◽  
Theta Pinch

Analytical features of a graphite vapor plasma in a theta-pinch magnetic field

1987 ◽  
Vol 59 (17) ◽  
pp. 2176-2180 ◽  
Author(s):  
E. T. Johnson ◽  
R. D. Sacks
Keyword(s):  
Magnetic Field ◽  
Theta Pinch

An experimental investigation of current production by means of rotating magnetic fields

1981 ◽  
Vol 26 (3) ◽  
pp. 465-480 ◽  
Author(s):  
W. N. Hugrass ◽  
I. R. Jones ◽  
M. G. R. Phillips
Keyword(s):  
Magnetic Field ◽  
Experimental Investigation ◽  
Threshold Value ◽  
Rotating Magnetic Field ◽  
Electron Current ◽  
Rotating Magnetic Fields ◽  
Theta Pinch ◽  
Current Production ◽  
Made In ◽  
Rotating Field

An investigation of current production by means of a rotating magnetic field is made in an experiment in which the technique is used to generate a theta-pinch- like distribution of field and plasma. Detailed measurements are made of both the generated unidirectional azimuthal electron current and the penetration of the rotating field into the plasma. The experimental results support the theoretical prediction that a threshold value of the amplitude of the applied rotating field exists for setting the electrons into rotation.

Observation of Radial Oscillations of Plasma Density and Magnetic Field in a Theta Pinch

1979 ◽  
Vol 18 (11) ◽  
pp. 2121-2125 ◽  
Author(s):  
Yoshihumi Itō ◽  
Ken Kawasaki ◽  
Tadashi Ōgo ◽  
Tomiaki Kurokawa ◽  
Toshiatsu Oda
Keyword(s):  
Magnetic Field ◽  
Plasma Density ◽  
Theta Pinch

Generation of a Large Swelling in the Spatial Magnetic Field Profile near the Coil Axis of a Theta Pinch

1987 ◽  
Vol 26 (Part 1, No. 10) ◽  
pp. 1727-1732
Author(s):  
Sukeomi Ogi ◽  
Masaharu Shiratani ◽  
Yukio Watanabe
Keyword(s):  
Magnetic Field ◽  
Field Profile ◽  
Magnetic Field Profile ◽  
Theta Pinch ◽  
Coil Axis

Magnetic Field and Inductance Calculations in Theta-Pinch and Z-Pinch Geometries

2006 ◽  
Vol 26 (1-2) ◽  
pp. 17-20 ◽  
Author(s):  
T. J. Awe ◽  
R. E. Siemon ◽  
B. S. Bauer ◽  
S. Fuelling ◽  
V. Makhin ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Theta Pinch ◽  
Z Pinch

On the Heating of a Pinch

1970 ◽  
Vol 25 (12) ◽  
pp. 1803-1807
Author(s):  
R. Mewe
Keyword(s):  
Magnetic Field ◽  
Heating Rate ◽  
Initial Rate ◽  
Final Value ◽  
Capacitor Banks ◽  
Theta Pinch ◽  
The Magnetic Field ◽  
Compression Temperature

Abstract The compression temperature of a theta pinch is calculated as a function of the circuit para-meters and the final /?-value of the plasma. One of the results is that the temperature, T, at the peak magnetic field, B, scales of (B B) t/s , where B is the initial rate of rise of the magnetic field. A possibility of combining two capacitor banks to increase the implosion heating rate is discussed.

Observation of the Anomalous Swelling of a Local Magnetic Field in a Linear Theta Pinch

1981 ◽  
Vol 50 (12) ◽  
pp. 3843-3844
Author(s):  
Sukeomi Ogi ◽  
Yukio Watanabe ◽  
Nobuhiko Fujiwara ◽  
Masanori Akazaki
Keyword(s):  
Magnetic Field ◽  
Local Magnetic Field ◽  
Theta Pinch

Characterization of an Analytical Theta-Pinch Plasma Generated with a Unidirectional Capacitive Discharge

1988 ◽  
Vol 42 (1) ◽  
pp. 77-83 ◽  
Author(s):  
E. T. Johnson ◽  
R. D. Sacks
Keyword(s):  
Magnetic Field ◽  
Discharge Current ◽  
Discharge Circuit ◽  
Radiative Properties ◽  
Plasma Properties ◽  
Capacitive Discharge ◽  
Zero Crossings ◽  
Theta Pinch ◽  
The Magnetic Field

The plasma produced by a high-current capacitive discharge through a graphite fiber bundle is compressed by a magnetic field coaxial with the plasma. The magnetic field is generated by the plasma current in a large coil surrounding the plasma. The field induces an azimuthal (theta) current in the plasma. This current couples with the external magnetic field and produces a radial Lorentz force which reduces the rate of plasma expansion. A diode shunt in the capacitive discharge circuit is used for the generation of a unidirectional discharge current. This arrangement eliminates zero-crossings of the discharge current and thus increases the effectiveness of the magnetic field in controlling the radiative properties of the plasma. Design features of the discharge circuit are presented, as well as a comparison of the plasma properties with oscillatory and unidirectional discharge current waveforms.

Sign in / Sign up

Export Citation Format

Share Document