PPT-In-situ Growth and X-ray Characterization of Alkali Antimonide Photocathodes

Presenter Zihao Ding Department of Materials Science amp Engineering Stony Brook University Outline Introduction of alkali antimonide photocathode Introduction of the inoperando growth system. 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 . _________ . E. R. Latifee, PhD. 10th Global Engineering, Science and Technology  Conference. January 2, 2015, BIAM Foundation,. 63 . Eskaton. , Dhaka, Bangladesh. Acknowledgement. Dr. Prasad Rangaraju, Clemson University, U.S.A.. 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. 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. (for Monitoring and Understanding. Photocathode Growth). Second Workshop on Photocathodes: 300-500nm. June 29-30, 2012, Enrico Fermi Institute, University of Chicago. Jeffrey W. Elam. Argonne National Laboratory. Transfer . Photocathodes. for Large Area Micro-Channel Plate Based Photo Detectors. 1. Argonne National Laboratory, Argonne, IL. 2. University of Chicago, Chicago, IL. 3. Fermi National Accelerator Laboratory, Batavia, IL. 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 Joshua T. Paul, Alice . Galdi. , Siddharth . Karkare. , Howard . Padmore. , Ivan . Bazarov. , Richard G. Hennig. Common photocathode materials: GaAs, . InGaAs. , . CsTe. , . CsI. , . SbCs. , Sb-K-Cs, Na-K-Sb. 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. “. Tutorial. ” . By. Assistant Processor . Dr. Raouf Mahmood. 1. Characterization techniques. Characterization techniques are classified as a . chemical characterization . and Structural characterization.