Current distribution measurements inside an electromagnetic plasma gun operated in a gas-puff mode

Journal Article · Wed Dec 15 04:00:00 EST 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3526603· OSTI ID:21532129

Poehlmann, Flavio R; Cappelli, Mark A ^[1]; Rieker, Gregory B ^[2]

---

1. Department of Mechanical Engineering, Stanford University, Stanford, California 94305 (United States)
2. Fluence, LLC, 37444 Sycamore Street, Unit 16, Newark, California 94560 (United States)

Measurements are presented of the time-dependent current distribution inside a coaxial electromagnetic plasma gun. The measurements are carried out using an array of six axially distributed dual-Rogowski coils in a balanced circuit configuration. The radial current distributions indicate that operation in the gas-puff mode, i.e., the mode in which the electrode voltage is applied before injection of the gas, results in a stationary ionization front consistent with the presence of a plasma deflagration. The effects of varying the bank capacitance, transmission line inductance, and applied electrode voltage were studied over the range from 14 to 112 {mu}F, 50 to 200 nH, and 1 to 3 kV, respectively.

• OSTI ID: 21532129
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 12 Vol. 17; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CAPACITANCE
CURRENTS
DISTRIBUTION
ELECTRIC COILS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRODES
EQUIPMENT
INDUCTANCE
IONIZATION
PHYSICAL PROPERTIES
PLASMA DIAGNOSTICS
PLASMA GUNS
ROGOWSKI COIL