Topic（题目）：Proton Boron Fusion from energy to applications
Speaker（报告人）：Dimitri Batani（University of Bordeaux, France, and Visiting professor, Center for Applied Physics and Technology, Peking University）
The fusion of a hydrogen nucleus with a boron-11 nucleus produces 3 a-particles and releases an energy of 8.7 MeV. This reaction, discovered by Oliphant & Rutherford in 1933 (Proc. R. Soc. London A 141, 259, 1933), has always been considered as the holy grail of fusion because it has two very nice characteristic: fist, it does not produce neutrons thereby minimizing the activation of materials and the production of radioactive wastes, and, second, it only uses abundant and stable elements as a fuel, thereby eliminating the problems of tritium breeding and of tritium handling.
However, triggering the HB fusion reactions requires temperatures 10 times higher than for DT fusion, which explains why it is considered an alternative interesting but very far into the future.
In recent years however the research on proton boron fusion has become very active, stimulated by several results, in particular obtained with lasers, which have shown a high yield of a-particles.
I will briefly discuss the real meaning of these experiments in view of the use of proton boron fusion for the production of energy and the perspectives of such research.
However, apart from energy research, proton boron fusion is also interesting because it offers the possibility of developing laser-driven sources of a-particles. Unlike fusion, this represents an objective which can be obtained on a short time-scale. This is an issue of large societal impact because while the demand for use of radioisotopes is exploding, the production capability is stagnating or even risks to decrease. Hence it is urgent to study new technologies for radioisotope production.
In this context, I will describe the result of an experiment recently performed at the CLPU (Center of Pulsed Lasers) in Salamanca, Spain, using the high repetition rate VEGA (1 PW, 1 Hz)
Dimitri Batani，法国波尔多大学特级教授，欧洲科学院院士，欧洲物理学会会士。高能量密度物理专家。在激光产生等离子体、高能量密度物质状态、激光驱动的辐射和粒子源、等离子体诊断、惯性约束聚变物理等多个方向上做出了开拓性的贡献。发表SCI论文400余篇，H因子>40，引用7000余次。获意大利物理学会(SIF)和法国物理学会联合颁发的“2017年弗里德尔沃尔特拉奖”(Friedel Volterra Prize 2017)以及韩国原子能研究院奖(Award of Korea Atomic Energy Research Institute)。担任Applied Physics B 期刊编辑，Laser and Particle Beams 期刊编委会委员和High Power Laser Science and Engineering 期刊编委会委员。Matter and Radiation at Extremes 特邀专刊编辑。