On June 18th, Beijing time, according to foreign media reports, the nuclear fusion spaceship may no longer be a plot in science fiction. In the next 10 years, mankind will be expected to realize a nuclear fusion spaceship. This technology will enable the spacecraft to reach Saturn from the earth. It only takes two years. The picture shows the Princeton field reversal configuration device-PFRC-2, located in the Princeton Plasma Physics Laboratory in New Jersey, USA If everything goes smoothly according to the calculation, the "Nuclear Fusion Direct Drive Engine" will be put into use for the first time around 2028. This is a major news for space fans. A small truck-sized DFD engine can weigh 10,000 kg, only It takes two years to reach Saturn, or five years after launch to Pluto. In contrast, NASA ’s Cassini probe reached Saturn in 6.75 years, and the New Horizons probe took 9.5 years. Only to reach Pluto. In addition, the DFD engine can be used as a powerful power source, which means that the technology can be widely used outside the earth's orbit, for example: the engine can provide power for the future deep space channel designed by NASA's lunar orbit space station . "Nuclear Fusion Direct Drive Engine" is a derivative concept of Princeton's reverse structure. PFRC is a fusion reactor concept invented by Samuel Cohen at the Princeton Physics Laboratory in early 2000. The DFD engine is basically an open PFRC reactor. The airflow generates thrust. The DFD engine is magnetic and contains helium-3 and deuterium thermal plasma. Deuterium is a special kind of "heavy hydrogen" with a neutron in its nucleus (as opposed to "normal" hydrogen without neutrons). Thomas said that the atoms of these elements will fuse in the plasma, generating a lot of energy and producing very little dangerous radiation. Fusion plasma heats the cooling propellant flowing outside the confinement zone of the nuclear fusion reaction. This propellant is directly ejected from the nozzle at the rear of the engine and generates thrust. All heat will be converted into a large amount of energy-which may reach 1-10 trillion Between watts, the DFD engine will use this energy, using the "Brayton cycle" engine to convert most of the heat into electrical energy. This means that the DFD engine can carry out a lot of scientific work after reaching the space destination. A Pluto orbiter equipped with a nuclear fusion device can transmit energy down to the lander on the surface of Pluto, and can also be sent to the earth in Pluto orbit. HD video. The current nuclear fusion reaction is difficult to control and handle. So far no one has been able to successfully demonstrate a true-scale, commercially viable nuclear fusion reactor. The DFD engine is different from other nuclear fusion reactor concepts. This is a small size, clean operation, and low radiation. , Using a unique plasma heating method (using a radio wave antenna). The DFD engine research team has recently received funding from various institutions to continue to develop the concept of research. For example: From 2016 to 2019, the research team received two rounds of funding support from NASA's Innovative Advanced Concept Project. The funding support project aims to cultivate potentially innovative space flight technologies. At the same time, the DFD engine also won the "Advanced Research Project Agency-Energy Award", which will fund the further development of research projects next year. At present, the research team has adopted some of the core concepts demonstrated by PFRC-1 and PFRC-2. The PFRC-1 experiment was run at the Princeton Physics Laboratory from 2008 to 2011. The PFRC-2 experiment is currently running, and the researchers have not yet achieved nuclear fusion. Reaction, but they hope to start the PFRC-4 experiment in the mid-1920s to achieve nuclear fusion reactions. Soon after, there will be a prototype aircraft. After completing a successful demonstration flight, the real flight mission may be realized as early as 2028.
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It takes only two years to reach Saturn. This nuclear fusion spacecraft is worth looking forward to.