In an embodiment of the invention there is a cyclotronic actuator. The actuator is defined by having a high-voltage plasma driver connected to a first electrode. The first electrode is surrounded by a dielectric material. A second electrode is grounded and placed away from the first electrode, such that a plasma arc is formed between the pair of electrodes when the high-voltage plasma driver is activated. A ring magnet surrounding the second electrode is configured to introduce a magnetic field locally to the plasma arc. The plasma arc will then discharge in a radial direction. The magnet creates a local magnetic field oriented vertically in a direction parallel to the axisymmetric orientation of the first and second electrodes to create a Lorentz Force. The force causes the plasma arc to move in a tangential direction and causes the plasma arc to discharge out in a circular pattern.

A power supply system includes a digital-to-analogue converter (DAC) configured to generate an analogue signal and an amplifier path on which the analogue signal is amplified to generate a high-frequency power signal to be provided to a plasma chamber for supplying a plasma process with high-frequency power. The DAC is configured to be connected to an arc detection device that is configured to monitor the plasma chamber for arcs and be controlled by the arc detection device to modify the analogue signal in response to detecting an occurrence of an arc.

Methods and systems are provided for increasing energy output from Z-pinch and other plasma confinement systems. In one example, a system may include memory storing instructions that, if executed by one or more processors, cause the system to adjust one or more parameters to generate a magnetic field which is sufficiently strong to axially compress a fuel gas to induce thermonuclear fusion and increase a fusion energy gain factor greater than a fusion energy gain factor limit attainable by the thermonuclear fusion. In certain examples, adjusting the one or more parameters may include adjusting a duty cycle of a discharge current applied to the fuel gas based, at least in part, on an amount of thermal collisions between fusion byproducts and the fuel gas. In certain examples, by adjusting the duty cycle, the magnetic field may be adjusted to induce or increase the thermal collisions.

This disclosure is generally directed to controlling energy distribution to a load, especially when anomalous events are detected. Benefits of the present disclosure include minimizing the length of a discharge event, mitigating the effects of an electrical discharge, and to improvements in inducing the ignition of a plasma. Methods and systems consistent with the present disclosure improve the control of operating conditions within a chamber and improve the ability for more rapidly initiating plasma ignition in a chamber.

This disclosure describes systems, methods, and apparatuses for extinguishing electrical arcs in a plasma processing chamber. Once an arc is detected, the steady state voltage provided to the plasma processing chamber can be reduced, and the current being provided to the chamber decays below a steady state value as the arc is extinguished. When the current falls to or below a current threshold, the voltage can be ramped back up bringing the voltage and current back to steady state values. This technique enables power to return to a steady state level faster than traditional arc mitigation techniques.

An arc evaporation device includes a bar-shaped target having a front end surface and a side surface to be melted and evaporated from the front end surface by arc discharge; an arc power supply; a target feed unit which moves the target axially and in a feed direction; an ignition rod capable of contact with the side surface of the target, in an intersecting direction intersecting the feed direction; a rotary actuator which moves the ignition rod along the intersecting direction from a retraction position apart from the side surface in the intersecting direction to make the ignition rod enter a transport region into which the target is fed; and a detection unit which detects whether or not the ignition rod has come into contact with the side surface of the target during movement of the ignition rod.

A simple and environment-friendly production equipment for carbon nano-materials includes a short-circuit generator and an AC/DC rectifier. A carbon nano vacuum device for producing the carbon nano-materials is connected with two output ends of the AC/DC rectifier. An alternate current is generated by the short-circuit generator and then is rectified into a direct-current power supply through the AC/DC rectifier to provide a power supply for a first graphite rod and a second graphite rod in the same direction, so as to generate a high-voltage electric arc at a junction of the first graphite rod and the second graphite rod, and plasma ionization is conducted on substances on the two graphite rods through the high-voltage electric arc, so that carbon atoms in the two graphite rods are decomposed, and carbon nano-materials are separated out and collected into a nano collector through a graphite cover.

A power supply system includes a digital-to-analogue converter (DAC) configured to generate an analogue signal and an amplifier path on which the analogue signal is amplified to generate a high-frequency power signal to be provided to a plasma chamber for supplying a plasma process with high-frequency power. The DAC is configured to be connected to an arc detection device that is configured to monitor the plasma chamber for arcs and be controlled by the arc detection device to modify the analogue signal in response to detecting an occurrence of an arc.

In an embodiment of the invention there is a cyclotronic actuator. The actuator is defined by having a high-voltage plasma driver connected to a first electrode. The first electrode is surrounded by a dielectric material. A second electrode is grounded and placed away from the first electrode, such that a plasma arc is formed between the pair of electrodes when the high-voltage plasma driver is activated. A ring magnet surrounding the second electrode is configured to introduce a magnetic field locally to the plasma arc. The plasma arc will then discharge in a radial direction. The magnet creates a local magnetic field oriented vertically in a direction parallel to the axisymmetric orientation of the first and second electrodes to create a Lorentz Force. The force causes the plasma arc to move in a tangential direction and causes the plasma arc to discharge out in a circular pattern.

An ion source that is capable of different modes of operation is disclosed. The ion source includes an insertable target holder includes a hollow interior into which the solid dopant material is disposed. The target holder may a porous surface at a first end, through which vapors from the solid dopant material may enter the arc chamber. The porous surface inhibits the passage of liquid or molten dopant material into the arc chamber. The target holder is also constructed such that it may be refilled with dopant material when the dopant material within the hollow interior has been consumed. A solid target is also disposed in the arc chamber. When the insertable target holder is used, multicharged ions are created. When the insertable target holder is retracted, single charged ions are created by only etching the solid dopant-containing compound.