讲座题目：Boron Laser Fusion without nuclear radiation problem for clean economic and unlimited energy
主讲人：Prof. Heinrich Hora
主持人：王加祥教授
讲座时间：2017.6.6 上午10:00
讲座地点：理科大楼A814室
报告人简介：
Professor Heinrich Hora (born 1931 in Bodenbach, Czechoslovakia) is an internationally respected authority on laser driven fusion energy since the beginning in 1962 at the Max-Planck Institute of Plasma Physics in Garching/Germany. Since 1975. at the chair of Theoretical Physics of the University of New South Wales in Sydney/Australia and continued in his Emeritus position from 1992. His computations led to the first formula for the optimized fusion gains and on optical constants in plasmas based on the classical collision frequency for absorption. Analyzing measurements of laser produced ion emission from plasmas led him to the conclusion of nonlinear effects where the generation of anomalously energetic ions led to the formulation of the nonlinear force of direct conversion of laser energy into mechanical motion of plasma. These forces cover the optical plasma properties and are a generalization of the long known ponderomotive force. With this he derived the ponderomotive self-focusing to explain why laser powers above megawatt cause the change into the nonlinear regime (1970). His relativistic derivation of the optical constants led to the first general derivation of relativistic self-focusing (1975). Due to his great academic contributions, he has been awarded Ritter-von-Gerstner Medal (1985)， Edward-Teller Medal (1991) ，Dirac Medal (2001)， Ernst-Mach Medal (2002).
报告摘要：
Aneutronic fusion without nuclear radiation problem of hydrogen with the boron isotope 11 (HB11) is impossible for power reactors in plasmas based on thermal equilibrium. Extreme non-equilibrium conditions for directly converting energy of laser pulses of picoseconds (ps) duration and powers above petawatt (PW) into macroscopic motion of plasma blocks, is the alternative to lift the ignition conditions of HB11 by fife orders of magnitudes similar to the level of deuterium-tritium (DT) fusion. The resulting ultrahigh acceleration by nonlinear (ponderomotive) forces were measured in agreement with earlier theory. Trapping by ultrahigh magnetic fields is used. In addition for HB11 the avalanche reaction of HB11 results in further 4 orders of magnitudes higher energy gains as measured and explained by eleastic nuclear colllisions. The reaction of 40 milligrams of boron results in more than GJ energy. Using one reaction per second will lead to an environmentally absolute clean and economic power reactor for 1000-Megawatt based on presently available technology.
