Analytical model for QED cascade development in rotating superstrong electric field

AbstractThe acceleration of ions by multiple laser pulses and their spontaneously generated electric and magnetic fields is investigated by using an analytical model for the latter. The relativistic equations of motion of test charged particles are solved numerically. It is found that the self-generated axial electric field plays an important role in the acceleration, and the energy of heavy test ions can reach several gigaelectronvolts.

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Active Thermal Control of an Ion-Drag Pump Assisted Micro Heat Pipe

10.1115/imece2000-1549 ◽

2000 ◽

Author(s):

Zhiquan Yu ◽

Nicholas A. Pohlman ◽

Kevin P. Hallinan ◽

Reza Kashani

Keyword(s):

Electric Field ◽

Heat Transport ◽

Analytical Model ◽

Temperature Control ◽

Fold Increase ◽

Thermal Control ◽

Transport Capacity ◽

Maximum Heat ◽

Micro Heat Pipes ◽

Active Temperature

Abstract An ion-drag pump is utilized to enhance the heat transport capacity of micro heat pipes. An analytical model is developed to estimate the maximum heat transport capacity as a function of the applied electric field. The model predicts that the application of an electric field causes a four fold increase in heat transport capacity. A transient analytical model was developed to permit variation of the electric field with applied thermal load. A proportional-integral-derivative controller was used to simulate active temperature control. The feasibility of achieving active temperature control was demonstrated experimentally.

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A two-dimensional fully analytical model with polarization effect for off-state channel potential and electric field distributions of GaN-based field-plated high electron mobility transistor

Chinese Physics B ◽

10.1088/1674-1056/23/8/087305 ◽

2014 ◽

Vol 23 (8) ◽

pp. 087305 ◽

Cited By ~ 4

Author(s):

Wei Mao ◽

Wei-Bo She ◽

Cui Yang ◽

Chao Zhang ◽

Jin-Cheng Zhang ◽

...

Keyword(s):

Electric Field ◽

Analytical Model ◽

Electron Mobility ◽

Polarization Effect ◽

High Electron Mobility Transistor ◽

High Electron ◽

Two Dimensional ◽

High Electron Mobility ◽

Field Distributions ◽

Channel Potential

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Simulation of the Steady-State Photocarrier Grating Method Applied to Amorphous Materials

MRS Proceedings ◽

10.1557/proc-258-705 ◽

1992 ◽

Vol 258 ◽

Cited By ~ 4

Author(s):

C.-D. Abel ◽

G. H. Bauer

Keyword(s):

Numerical Simulation ◽

Steady State ◽

Electric Field ◽

Closed Form ◽

Analytical Model ◽

Amorphous Materials ◽

Grating Period ◽

Amorphous Semiconductors ◽

Closed Form Expression ◽

Form Expression

ABSTRACTGeneral features of the steady-state photocarrier grating technique applied to amorphous semiconductors are investigated by complete numerical simulation. The results are interpreted with an analytical model which delivers a closed-form expression for β(A,E) assuming dominance of one carrier type. The variation of the electric field E instead of the grating period A is suggested as an easier and more accurate tool for the experimental technique.

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