Plasma needle

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This document appears to be about an electron density experiment using a needle, plate, and voltage. It mentions an axis of symmetry and includes an equation relating voltage, frequency, and the cosine of an angle. The document provides technical information but lacks context, so a brief 3 sentence summary is all that can be determined.

Fa-Gung Fan
Axis of
symmetry
Electron
density
Needle
Plate (grounded)
VoltV 2000 = MHzf 56.13=
)2cos(0 ftVV π=

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Plasma needle

1. Fa-Gung Fan Axis of symmetry Electron density Needle Plate (grounded) VoltV 2000 = MHzf 56.13= )2cos(0 ftVV π=

Plasma needle

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Plasma needle