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Theta-pinch, or θ-pinch, is a type of fusion power reactor design. The name refers to the configuration of currents used to confine the plasma fuel in the reactor, arranged to run around a cylinder in the direction normally denoted as theta in polar coordinate diagrams.
The FRC was first observed in laboratories in the late 1950s during theta pinch experiments with a reversed background magnetic field. [3] The original idea was attributed to the Greek scientist and engineer Nicholas C. Christofilos who developed the concept of E-layers for the Astron fusion reactor.
However, the LSX used a method of forming FRCs called a theta-pinch, which does not allow FRCs to be further sustained and heated. The US Department of Energy funded the TCS program as an extension of LSX, in order to demonstrate the RMF method of sustaining FRCs formed via the theta-pinch method. [3]
The q profile in a reversed field pinch The poloidal field in a reversed field pinch. A reversed-field pinch (RFP) is a device used to produce and contain near-thermonuclear plasmas. It is a toroidal pinch that uses a unique magnetic field configuration as a scheme to magnetically confine a plasma, primarily to study magnetic confinement fusion.
To gain experience with the concept, NRL initially built liner imploders. The first experimental device was Suzy, constructed in 1971 under the direction of D.C. dePackh. The system used solid metal liners, like the Soviet experiments and many later devices. The liner was driven inward through the theta pinch process, using a 50 kJ capacitor ...
Regarding other outcomes, researchers found that cold-water immersion helped reduce stress 12 hours after exposure but not immediately after, one hour after, 24 hours after, or two days after.
The U.S. Food and Drug Administration (FDA) on Thursday approved a new type of prescription pain medication for adults to treat moderate to severe acute pain. The drug, called Journavx ...
In fusion power research, the Z-pinch (zeta pinch) is a type of plasma confinement system that uses an electric current in the plasma to generate a magnetic field that compresses it (see pinch). These systems were originally referred to simply as pinch or Bennett pinch (after Willard Harrison Bennett ), but the introduction of the θ-pinch ...
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