PPT-Alkali Metal Sources for Photocathodes and their Quantification –

Getter Sources vs Metallic Evaporation Sources Charlie Sinclair Cornell University ret 6242012 UChicago Photocathode Workshop 1 Alkali Na K Rb Cs Characteristics Low melting temperature. Acids and Bases. REVISION. I have demonstrated ways of measuring and adjusting pH and can describe the significance of pH in everyday life.. SCN 3-18a. NEW LEARNING. I can . describe the dissociation of water into H. Ans. :. Relight. a . glowing splint. 2) Describe the tests for Hydrogen (2).. Ans. :. Squeaky pop . with a . lighted splint. 3) Describe the tests for chlorine (2. ).. Ans. :. A . damp blue litmus . Metals. By. Elizabeth Ratcliffe. Properties of Metals. Metals are useful – most are good conductors of electricity and heat. Most are shiny when they are cut. Some are magnetic such as steel. . Every metal, except mercury, is not a liquid at room temperature. . is . a . substance . with a pH of . __________ ________7. It will turn . universal indicator red if they are . ___________, . and orange or yellow if . it is weak. . Acids . often taste . _________ . Quick Starter. What connects these . photos. ?. s. how hint. s. how answer. Exploring Group 1. Quick Starter. s. how hint. s. how answer. Where does the colour in fireworks come from?. Hint. X. What connects these . Acids and Alkalis. REVISION. Acids, Bases and the pH Scale. Indicators from natural substances.. Everyday Neutralisation. Level 4. NEW LEARNING. Formation from oxides. Electrolysis of Acids. National 4. Patel Sikora. What are Alkali Metals?. The alkali metals are located in Group 1 of the periodic table. They are a series of chemical elements which have similar trends and properties. Alkali metals are so called because when they react with water alkalis (strong bases that can neutralize acids) are formed.. Sean Bresler, . Joonbum. Park, Michael Heaven. ISMS 2017. Motivation. Diode Pumped Alkali Lasers (DPAL) . –. high-powers, excellent beam quality. . Need fast n. 2. P. 3/2. . n. 2. P. 1/2. transfer. 2: Classes of Amorphous Materials. Juejun (JJ) Hu. hujuejun@mit.edu. 1. After-class reading list. Fundamentals of Inorganic . Glasses. Ch. 1 & 5. Introduction to Glass Science and . Technology. Ch. 5. Getter Sources vs. Metallic Evaporation Sources. Charlie Sinclair. Cornell University (ret.). 6/24/2012. UChicago Photocathode Workshop. 1. Alkali (Na, K, . Rb. , Cs) Characteristics. Low melting temperature. Alkali Metals Electrostructure and reactivity Physical properties Summary activities Reactions Uses Contents H Rn Xe Kr Ar Ne Ra Ac Rf Db Sg Bh Hs Mt Ds Rg ? ? ? ? ? ? ? Ba La Hf Ta W Re Os Ir Pt Group I metals Trends Melting and Boiling points? Densities Reactivity… Alkali Metal What is the trend in density? The alkali metals generally become more dense going down the group, but the trend is not perfect because potassium is less dense than sodium. Md. Abdullah A. Mamun. Carlos Hernandez-Garcia. Matthew Poelker. P3 . Workshop : . Photocathode Physics for . Photoinjectors. , November 3-5, 2014. Lawrence Berkeley National Laboratory, Berkeley, California, USA. Presenter: Zihao Ding. Department of Materials Science & Engineering,. Stony Brook University. Outline. Introduction of . alkali antimonide photocathode. Introduction of the in-operando growth system.