PPT-M icrowave reflection technique for measurements of electron cloud density

Hexuan Wang Mentor Charles Thangaraj 8122011 Outline of the talk Experimental setup and methods Results Future work 8122011 Radiofrequency transmission EC causes density dependent phase shift to microwave. Y.Susaki,KEK-ACCL. 13 Jan, 2010. Low Emittance Rings 2010, CERN. Positron beam emits synchrotron radiation. Electrons are produced at the chamber wall by photoemission. Electrons are attracted and interact with the positron beam. Electron Cloud Evaluations for ILC DR. . Mauro Pivi on behalf of the ILC Electron Cloud Working Group. - by . Webex. - . KILC12 – . Daegu. . K. orea. April 25, 2012. Technical Design Report TDR 2012. Response of the Earth’s environment to solar radiative forcing. Ingrid Cnossen. British Antarctic Survey. Outline. Previous lecture. Intro to atmosphere structure and processes. Absorption of solar radiation. and Propagation. and the Thermal Response. in Solar Flares. Gordon D. Holman. NASA/Goddard Space Flight Center. Chapter 3. The Collisional Thick-Target Model. Electrons are accelerated in the corona and stream downward along magnetic field lines to the denser transition region and chromosphere, where they are . SuperKEKB. Y.Susaki,KEK. -ACCL. 9. Feb, . 2010. KEK seminar. Positron beam emits synchrotron radiation. Electrons are produced at the chamber wall by photoemission. The electrons . are attracted and interact with the positron beam. Disorder? . o. r Dynamics?. 10 Å. What is the structure of “disorder” ?. a grand challenge for structural biology in the 21. st. century. R. Neutze . et al., . Nature . 406. , pp. 752-757 (2000) . ee. E.Belli. , . M. Migliorati, G. Rumolo. Outline. Trapped Modes . Electron Cloud. Conclusions. E.Belli. FCC-. ee. MDI Workshop – January 17, 2017. M. any thanks to:. A. . Novokhatski. , M. . Zobov. In-Situ SEY Measurements. Retarding Field Analyzer Studies. W. . Hartung. , J. . Calvey. , C. Dennett, J. Makita,. V. . Omanovic. . for the C. ESR. TA Collaboration. Cesr. TA. Advisory Committee Meeting ● 11 September 2012. Conversion Problems. Density. Measurements and their Uncertainty . Do any of these signs list a measurement?. - Measurements contain BOTH a . number. and a . unit. .. All measurements depend on units that serve as reference standards. The standards of measurement used in science are those of the metric system. . GÖZDE ARIBAL . . 20823751 . AYKUT BİLİR . 20823842. BORGA DERBENT. . 20823966. Sergey Antipov, The University of Chicago Advisors: Young-Kee Kim (U.Chicago) and Sergei Nagaitsev (FNAL/U.Chicago) Study of Fast Instability in Recycler Outline What we know about the fast instability? Mauro Pivi CERN/SLAC. CLIC Collabortion Meeting CERN 9-11 May 2012. Thanks . to:. F. . Antoniou, . Y. Papaphilippou . (. CERN) T. Demma (LAL), A. Chao (SLAC). Intra-beam . Scattering. Mauro Pivi, MedAustron - work made while at SLAC -. i. n . collaboration. with: T. . Demma. (Frascati & LAL), the ILC / CLIC and . G. Iadarola, L. . Mether. , E. . Métral. , L. Sabato. Introduction. Instability dependence on the bunch intensity. Dipole magnets. Quadrupole magnets. Experimental observations with trains of 12b. Effect of the transverse emittance.