Electron beams focussed esp. to initiate fusion reaction - by pressure produced by focussed pulsed laser beam

摘要

A method of focussing intense relativistic electron beams consists of using beams, esp. laser beams, to exert a transverse pressure on the electron beam. Pref., one or more pulsed laser beams propagating in a plasma, are focussed to a hollow conical shape around the electron beams. The plasma in which focussing of the laser beam takes place is pref. of light to heavy elements or a combination of same, selected to give maximum focussing with minimum energy loss from the electron beam. Esp. for initiating thermonuclear reactions and producing transuranic elements. Also for focussing electrically charged particles such as ions, instead of relativistic electron beams. Also for focussing electrically charged particles and continuous particle beams, instead of pulsed laser beams.