Prepulse switch - QuickField simulation example
Example by Dr. Raymond J. Allen, Plasma Physics Division, Naval Research Laboratory
Model was used in the preparation of this publication
Prepulse switch consists of two groups of electrodes (grounded and high-voltage) separated by a shielding disk, enclosed in the metal body.
How to calculate electric field and electrode charge in a prepulse switch?
Answer Typical applications Geometry 3D import.
Image courtesy of Plasma Physics Division, Naval Research Laboratory
Given
Task
Solution
Results
Reference:
Engineering question
Import the 3D electrode geometry, apply the device voltage in an electrostatic model, and calculate both the electric-field distribution and charges on the electrodes.
prepulse switches, pulsed power electrodes, high-voltage switching gaps
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Simulation problem
Problem Type electrostatics.
Relative permittivity of water εr = 81,
Applied voltage V = 4 MV.
Calculate the electric field distribution in the device. Find the charge on electrodes.
Electrostatic field and charges distribution in the Pre-pulse Switch used in the improved Gamble generator design.
Electric field distribution in the water around the groups of electrodes:
Raymond Allen et al. Plasma Physics Division, Naval Research Laboratory. Use of new & improved QuickField 3D to aid design of Gamble II water switch hardware for implementation on Gamble III.
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