Performance of semiconductor current filament lasers

2002 ◽  
Author(s):  
G.A. Vawter ◽  
A.G. Baca ◽  
W.W. Chow ◽  
M.J. Hafich ◽  
H.P. Hjalmarson ◽  
...  
Keyword(s):  
Current Filament

Simple inversion of time‐domain electromagnetic data

Geophysics ◽  
1984 ◽  
Vol 49 (7) ◽  
pp. 925-933 ◽  
Author(s):  
C. T. Barnett
Keyword(s):  
Time Domain ◽  
Eddy Currents ◽  
Early Time ◽  
Late Time ◽  
Current Filament ◽  
Equivalent Current ◽  
Time Domain Electromagnetic ◽  
Inversion Procedure ◽  
Current Filaments ◽  
Simple Inversion

The eddy currents induced in a thin confined conductor by a fixed‐loop time‐domain EM system can be represented by a single equivalent current filament. The equivalent current filament stays in the plane of the conductor at all times during the decay of the secondary field, but tends to migrate from a position of maximum primary field coupling at early time toward the center of the conductor at late time. This filament approximation is used in the design of a least‐squares inversion procedure which fits circular or rectangular current filaments to an observed eddy current distribution. The inversion procedure provides a rapid but precise means of estimating the position, size, and attitude of a conductor which has been detected by a time‐domain EM survey.

Physical Insights Into the ESD Behavior of Drain Extended FinFETs (DeFinFETs) and Unique Current Filament Dynamics

2020 ◽  
Vol 67 (7) ◽  
pp. 2717-2724 ◽  
Author(s):  
B. Sampath Kumar ◽  
Milova Paul ◽  
Harald Gossner ◽  
Mayank Shrivastava
Keyword(s):  
Current Filament ◽  
Filament Dynamics

scholarly journals The Proximity Effect in Twin Line with Round Conductors Placed in Conductive Medium

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 6087
Author(s):  
Paweł Jabłoński ◽  
Dariusz Kusiak ◽  
Tomasz Szczegielniak ◽  
Zygmunt Piątek
Keyword(s):  
Proximity Effect ◽  
Sea Water ◽  
Separation Of Variables ◽  
Surrounding Medium ◽  
Analytical Formula ◽  
Circular Cross Section ◽  
Boundary Element Methods ◽  
Magnetic Vector Potential ◽  
Current Filament ◽  
Conductive Medium

Power lines are often placed in ground or sea water, which are weakly conductive media. In the paper, a new analytical formula, taking into account the proximity effect in a twin line placed in a weakly conductive medium, is derived, and the effect of the conductive medium is considered. In the first step, one of the wires is replaced by a current filament, and the solution is sought for magnetic vector potential around the filament. In the next step, an analytical formula for eddy currents induced in a long straight conductor of circular cross-section placed near to the current filament in the extensive conductive medium is found by using the method of separation of variables. The correctness of the formula is checked by comparison with the results obtained via other methods like finite and boundary element methods. Then, the effect of various parameters on the eddy current distribution is tested. Next, the proximity effect in a twin symmetrical line is considered, and the effect of the conductivity of the surrounding medium is investigated. The results indicate that the conductive medium weakens the proximity effect, but in typical cases (ground and sea water), the effect is very small.

Plasma boundary determination in ITER by the optimized current filament method

1998 ◽  
Vol 38 (12) ◽  
pp. 1829-1838 ◽  
Author(s):  
Yu.K Kuznetsov ◽  
I.C Nascimento ◽  
R.M.O Galvão ◽  
I.V Yasin
Keyword(s):  
Plasma Boundary ◽  
Current Filament ◽  
Boundary Determination
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