Field anti-plasma magnetic compression device and method

Abstract

The invention discloses a field anti-plasma magnetic compression device and method, and belongs to the field of magnetic confinement nuclear fusion, and the device comprises a vacuum chamber, a compression coil surrounding the vacuum chamber, and a power module. A first power supply module in the power supply module generates a first compressed magnetic field in the vacuum chamber through a compression coil, and when the first compressed magnetic field rises to the maximum value, the second power supply module is connected and generates a second compressed magnetic field in the vacuum chamberthrough the compression coil, so that the magnetic field in the vacuum chamber continuously rises to perform cascade magnetic compression on the field anti-plasma in the vacuum chamber. After the plasma is rapidly heated to a high-temperature state, another power supply module is switched on to ensure that the current of the coil continuously rises, so that certain heating power is maintained to counteract transportation and radiation loss in the plasma, and the service life and fusion reaction time of the plasma are greatly prolonged, when coil current rises to the maximum value, coil magnetic energy can be fed back to a power grid or a power module, energy recovery is achieved, and compression efficiency is improved.

Description

technical field [0001] The invention belongs to the field of magnetic confinement nuclear fusion, and more specifically relates to a field anti-plasma magnetic compression device and method. Background technique [0002] In the research of magnetic confinement nuclear fusion, a core task is to heat the plasma used for fusion reaction to a high enough temperature, such as 10keV, which is about 100 million degrees. In pulse fusion devices, it mainly relies on compression. The idea of ​​heating plasma by adiabatic magnetic compression has been proposed a long time ago, and it has been verified by experiments as an effective way to heat plasma. [0003] The existing adiabatic magnetic compression based on field anti-plasma always winds a coil outside the plasma, and passes the coil with a rapidly rising current at a certain time sequence to form a rapidly rising magnetic field around the plasma. Under the action, the volume is reduced, the density and temperature are simultaneo...

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Problems solved by technology

After the compression coil current reaches the maximum value, it cannot be further increased, but the freewheeling decays, and the field diamagnetic configuration of the confined plasma is quickly destroyed under the effects of resistance dissipation and plasma transport, causing the plasma to quickly lose the confinement magnetic field and then Disappears quickly, the life of the plasma is very short, and the time for the fusion reaction to occur is also very short, usually around 10us

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