| 摘要 |
955, 268. Thermonuclear apparatus. H. O. G. ALFVEN. Oct. 12, 1960 [Oct. 14, 1959], No. 34931/60. Heading G6P. A method of producing a hot plasma comprises introducing into a container deuterium or deuterium and tritium at a pressure of at least 1 mm. and preferably at least 10 mm., starting an electric discharge through the gas, and producing a magnetic field perpendicular to the direction of heat conduction in the transition space between the discharge and the wall of the container. In the apparatus shown the container comprises four sections, such as 11 and 12, joined together with insulation between each section to form a torus, and the container is surrounded by a cooling jacket 1, also formed of four insulated sections. Split rings 6 and 7 are arranged above and below the torus and a further split ring 10 surrounds the torus. In operation a capacitor bank 61 is discharged through these split rings to create a plasma ring 72 which is compressed by an axial magnetic field of up to 50,000 gauss produced by the coil 2 surrounding the torus. The gas pressure may be higher, by a factor up to 100, then the gas pressure is the space surrounding the discharge, the difference 'is pressure being balanced by magnetostatics pressure produced by the magnetic field. The axial magnetic field also reduces losses by heat conduction. |
