A kind of device generating high density hollow electron cloud with radium-shine moment,Radium-shine light beam including 2 groups of laser apparatus projection different wave lengths,And it is set as the ion target source of concentric circles target core structure and the doughnut-like optical cathode of concentric circles peripheral structure,Wherein,Ion target source receives the irradiation of the wherein radium-shine light beam of one group of laser apparatus,And the ion beam group that moment generates,The doughnut-like optical cathode receives the irradiation of the radium-shine light beam of another group of laser apparatus,And moment generates hollow form or hollow cylindrical electron cloud,To capture the ion beam group of ion target source moment generation and be enclosed within electron cloud generated,The light velocity can be accelerated in minimum distance.一種以鐳射瞬間生成高密度中空電子雲的裝置，包括2組鐳射裝置投射不同波長的鐳射光束，以及設成同心圓靶心結構的離子標靶源及同心圓外圍結構的環狀光學陰極，其中，所述離子標靶源接受其中一組鐳射裝置的鐳射光束的照射，且瞬間生成的離子束團，所述環狀光學陰極接受另一組鐳射裝置的鐳射光束的照射，且瞬間生成中空狀或中空圓筒狀電子雲，以捕獲所述離子標靶源瞬間生成的離子束團且封入在所生成的電子雲之內，在極短距離內可加速到光速。
