中国科大大一新生《科学与社会》研讨课 《反物质世界的探索2014/11/30 Positron Science Positron Science aickly developed for Test Quantum Electrodynamics Fundamental ●Fundamental science ●Material science Industrial application Science Ps Bose-Einstein Condensation low-imne Gravitationof Ps Anti-matter Energy Particle Physics Industrial CT Microstructure A successful application is Anti-matter knowledge explanation Medical PET 正电子产生 Cyclotron-Produced Radionuclides Tbe72● produced Radionuclides Used in ●Bt-decay uclear Medicine Natural Abundance Common Production of Targ Product Decay Mode Reaction Some Cyelotron-produced Radionuclides wB(d.n)C 19.7 B(p.n)UC 80.3 Natural Abundanc PC(d.n)PN 9%9 Common Production Produet Decay Mode of Target Isotope Nid.n)O Reaction B*.EC Ne(d.a)F B'.EC IC B B(d.n)C 197 BY B(p.n)C 80.3 (ECY) B EC(d.n)DN 9州9 (EC.Y) 14N(d.n)5O 99,6 wN@(d.a)F 909 (EC.y) B*.EC Na(p.2n)Na 100 .312 4.6 (ECy) 13.2 pair production (y->et+e) 2602a Na (904 EC段5 B*(01% M y1.274Me Ne (22Na->22Ne +e+v+y(1.28 MeV)) ●Nuclear reaction 1 →e++ 2014四 中国科大物理学院叶邦角教授主讲 版权所有，禁止传播 22014/11/30 2 Fundamental science Material science Industrial application Microstructure explanation Industrial CT Positron Science Anti-matter knowledge A successful application is Medical PET The positron as the antiparticle of the electron can visualize the properties of electrons in matter. Positron science is quickly developed for fundamental science and application in materials and industrial. Fundamental Science Test Quantum Electrodynamics Ps Bose-Einstein Condensation Gravitation of Ps Anti-matter Energy Particle Physics Positron Science 正电子产生 b+-decay 2014/11/30 Cyclotron-Produced Radionuclides pair production (g -> e+ + e- ) Nuclear reaction (22Na -> 22Ne + e+ + ue + g (1.28 MeV)) 2014/11/30 中国科大大一新生《科学与社会》研讨课 《反物质世界的探索》 中国科大物理学院叶邦角教授主讲 版权所有，禁止传播 叶邦角主机