The source of nuclear weapons, the fusion reactor, or the future of energy – Sohu

Join the nuclear weapons material, Sandy National Laboratory in the fusion reactor or will represent the future of energy science and technology Sohu – Albuquerque city (Sandia National Laboratories) is a famous fusion reactor "Z devices" (Z machine). Plasma physicists to each reactor ignition test can always see a strange scene: the smoke from the device off, like a volcano eruption. The capacity of the capacitor used in the Z device is more than that of the one thousand lightning discharge. When the reactor is ignited, the current of the ampere is poured into the cylindrical fuel element with the size of a pencil eraser. A strong electromagnetic field is generated by the current, and the hydrogen atoms in the fuel element are compressed rapidly under the action of electromagnetic field, and the strong fusion reaction occurs, and the high energy neutrons and the helium nuclei are released. The cylindrical shell structure is a complex external fuel kg made of metal, but the release of the reaction energy is too large, large enough to make the metal clad in smoke. Z device of pulsed magnetic field current of compressed fuel element fusion reaction which is equivalent to the release of the three explosive energy ", a project manager Mike · of the project; Kunio (Mike Cuneo) said. "After the ignition, the device will leave a crater about a foot wide." At present, rare materials for physicists to join thermonuclear weapons in the fuel, this choice is the risk is quite effective. The fusion calculation, simulation and experimental results published in recent years can be seen, compared with laser and tokamak fusion device, Z device is more hope to take the lead in a self-sustaining fusion reaction, and its cost is also relatively low. At present, most of the fusion fuel in the Z unit is deuterium, and deuterium deuterium is relatively less. In August this year, the researchers added a small amount of tritium to the fuel, the next 5 years, deuterium tritium (DT) ratio will gradually increase to 1 to 1. The amount of neutrons released by the deuterium tritium reaction is 60 to 90 times that of the deuterium deuterium reaction, and the neutron and alpha particle energy is more than 4 times that of the latter. With the increase of tritium concentration in the fuel, the energy released by the reaction increases accordingly. Some of the world’s fusion fuel is also used in this way. For example, in the UK Abingdon (Abingdon) of the joint European Tokamak (Joint European converter Torus, JET), which in 1997 the deuterium tritium fusion reaction releases 16 megawatts of electricity, but the duration is less than a second. At present, JET is still the record holder of the output energy of fusion reactor. The biggest influence on the JET energy output is the graphite wall in the reactor. "Graphite wall like a sponge, absorbing 70% of the tritium," Saville · (Xavier Litaudon); Lituodun recalls. Lituodun University of Oxford ITER in charge of the project, he is currently working for a new round of the 2019 JET deuterium tritium reaction proceeds. Cada Rush (Cadarache) in France相关的主题文章: