Electrothermal (ET) plasma discharges have application to mass acceleration technologies relevant military ballistics and magnetic confinement fusion reactor operation. ET are initiated in capillary geometries by passing large currents (order of tens kiloamperes) along the axis. A partially ionized then forms radiates heat walls inducing ablation. Ablated particles enter source cause a pressure surge that can propel pellets velocities exceeding 2 km/s. These devices present several...

Electrothermal (ET) plasma launchers have a wide array of applications as mass acceleration devices. An ET launcher utilizes an discharge to accelerate projectile. discharges are arc-driven capillary that ablate liner materials and form partially ionized plasmas. generated by driving current pulses through source. Current typically peak currents on the order tens kA with pulse lengths hundreds μs. These types been explored for their application military ballistics, electric thrusters,...

Deep fueling for large-scale tokamak fusion reactors requires the use of high-velocity fuel pellet injectors. The pellets consist deuterium or deuterium-tritium ice. Electrothermal plasma guns can be used to launch into at a range velocities. velocities required reactor deep control edge localized modes. capillary tube where is sparked, called source, and an acceleration barrel. sparked inside source using capacitor bank that charged 10 kV. A liner material ablated forms draws up 40 kA...

In magnetic or inertial fusion reactors, hydrogen, its isotopes, and lithium are used as fueling materials. Lithium is considered a fuel not an impurity in reactors it can be to produce energy breed products. hydride deuteride may serve good ablating sleeves for plasma formation ablation-dominated electrothermal source propel pellets. Previous studies have shown that pellet exit velocities greater than 3 km/s possible using low-z propellant this work, comprehensive study of solid conducted...

Summary form only given. Electrothermal (ET) plasma discharges are arc-driven, capillary that draw currents up to several tens of kA. These have radii on the order millimeters and lengths centimeters. They a breadth applicability ranging from materials processing pellet injection for deep fusion fueling. A new simulation model code been developed study these in greater detail than has previously possible. This is two-dimensional tracks evolution electron, ion, neutral species discharge....

Summary form only given. Deep fueling for large-scale tokamak fusion reactors requires the use of high-velocity fuel pellet injectors. The pellets consist deuterium or deuterium-tritium ice. Electrothermal plasma guns can be used to launch into at a range velocities. velocities required reactor deep control edge localized modes.Electrothermal capillary tube where is sparked, called source, and an acceleration barrel. sparked inside source using capacitor bank that charged 10 kV. A liner...

Summary form only given. Electrothermal (ET) plasma discharges have captured the interest of researchers due to their wide range applicability. They been investigated for application solid propellant ignition, electric propulsion, high heat flux experiments, and fusion fuel pellet injection. ET involve passage currents (order tens kA) through narrow channels (usually millimeters in diameter centimeters length). The arc that forms inside discharge radiates channel's walls ablation is induced....

Deep fueling for large-scale tokamak fusion reactors requires the use of high-velocity pellet injectors. The fuel pellets consist frozen deuterium or deuterium-tritium ice. A must be launched into plasma at a high enough velocity to reach core before too much melts, ablates and disintegrates. For reactors, is predicted operate temperatures up 15×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">7</sup> °C its core. At these extreme...