PPT-Examples of Positron decay:

Alpha Decay Alpha decay occurs for those nuclides which have an atomic number greater than 82 Such heavy nuclides have no stable configuration of neutrons and protons and as a result emit an alpha particle consisting of 2 protons and 2 neutrons. Tzu-Cheng, Chuang. . (. 莊子承. ). Exchange student from. National Tsing-Hua University (Taiwan). (. 國立清華大學. , . 台灣. ). Where?. Russia. China. Japan. Taiwan. Zoom in. China. Hong Kong. Chemistry. ________________ involve changes with electrons. . ________________ involve changes in atomic nuclei. . Spontaneously-changing nuclei emit ________ and. are said to be _________. . Chemical reactions. Wei Gai for the ILC e- and e+ collaboration . PAC review, 2012. KEK, Japan. ILC site layout and location of e- and e+ sources. Page . 3. The Baseline ILC Electron Source . Electron source provides polarized electron beam and consists of all systems from source laser to 5 GeV injection to damping rings. ( 325 MHz SHB). R.CHEHAB (IPNL). On behalf of . I.Chaikovska. (LAL), . H.Guler. (LAL), . P.Bambade. (LAL), . O.Bianco. (LAL), . F.Plassard. (LAL), . X.Artru. (IPNL), . M.Chevallier. (IPNL), . J.Gao. (IHEP), . Shannon . Fogwell. . Hoogerheide. Lepton Moments 2014. July 21, 2014. Acknowledgements. 2. Prof. Gerald . Gabrielse. Elise . Novitski. (PhD in progress…). Joshua Dorr (2013). Shannon . Fogwell. . for Measurements of. . G. eneralized . P. arton . D. istributions. e. +. @ . JLab. Generalized . parton. distributions. Polarized positron production. Polarization transfer physics. . PEPPo. at room temperature. J. . Kansy. 1. . and M. Ziąbka. 2. .  . 1. . Institute of Material Science, Silesian University, . Bankowa. 12, 40-008 Katowice, . Poland. 2. . Faculty of Materials Science and Ceramic, University of Science and Technology, A. . Background Image courtesy of Dr. Bill Moore, Dept. of Radiology, Stony Brook Hospital. http://www.colin-studholme.net/research/ipag/mrdspect/mrspect3.html. http://www.mwit.ac.th/~Physicslab/applet_04/atom2/Alphae.gif. 2. Nuclear Physics. Back to Rutherford and his discovery of the nucleus. Also coined the term “proton” in 1920, and described a “neutron” in 1921. Neutron discovered by Chadwick in 1932. Ernest Rutherford. 24.1 Nuclear Radiation. 24.2 Radioactive Decay (includes decay rates & radiochemical dating). 24.3 Nuclear Reactions (Transmutation. Part only). 24.4 Applications & Effects of Nuclear Reactions (except for radiation dose and intensity/distance). 24.1 Nuclear Radiation. 24.2 Radioactive Decay (includes decay rates & radiochemical dating). 24.3 Nuclear Reactions (Transmutation. Part only). 24.4 Applications & Effects of Nuclear Reactions (except for radiation dose and intensity/distance). IAEA 2 FIG 1 The configuration of the positron source of POSH Four disks are shown at the right side In the disks made from tungsten foils the pair formation from hard gammas emerging from the reacto 1. . The first series in the hydrogen spectrum is called the. a. . Paschen. series . b. Lyman series . c. Rydberg series d. Balmer series.  . 2.. An electron jumps from energy level . n. = 2 to energy level . beta decay. . They are designated by beta (β). There are two forms of beta decay, . β. −.  and . β. +. , which respectively give rise to the electron and the positron.. . The generalized atomic equation for beta decay is as follows.