PPT-Why New Photocathodes? (Motivation for Photocathode Source Improvement)

JW L ewellen for LANL ACERT team P3 Workshop 16 17 October 2016 Acknowledgements LANL LDRD program LANL teams ACERT DLA SBL LBNL Photocathode Group John Smedley BNL Paul Emma and . They have GaAsCs0 photocathodes ultraviolettransmitting glass win dows and inline copper beryllium dynode structures The C31034A is a variant of the C31034 Series which exhibits higher photocathode responsivity The C31034 Series is designed specific 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. Brightness Limiting Phenomena. Simulated bunch profile for 20pC and 80pC bunch charges from a realistic . birefringent. . pulse-stacked laser profile. .. The onset of the . virtual cathode instability (VCI). 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. Intermediate Cost Analysis. and Management. 1. 10.1. Which Would You Rather Have?. A million dollars today. -or-. A penny today plus twice the previous day’s input for a month?. (i.e. 2 cents tomorrow, 4 cents the next day, etc) . Motivation 101: How to Get Students Off the Couch Learning Objectives Describe intrinsic and extrinsic motivation Articulate strategies to help students increase motivation to engage in physical activity 1. Photocathodes for Electron Accelerators. Evangelos. . Gazis. Katerina. . . Tzanetou. Pirsi. . Prepibaj. Rafaella. . Kotitsa. Nick . Gazis. (ESS ERIC). Institute of Accelerating Systems & Applications. EN Gazis/IASA. 1. Laser/Photocathode . & Solenoid . study for e-gun. N. Gazis. a. , A. Bignami. a. , . E. . Tanke. a. , E. Trachanas. a. , . I. Telali. b. , K. Tzanetou. b. ,. . ENG. b,c. a) European Spallation . 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. must be built to . implement electron cooling of the proton beam for the Jefferson Lab Electron Ion Collider . which requires . continuous wave (CW) electron beam at high average current and high bunch charge. A superconducting radio frequency (SRF) . Kurt . Aulenbacher. . (Uni. Mainz). Erdong Wang. . (BNL). 6/26/17. 1. Talks. . summary:. . Photocathode. 6/26/17. 2. 1. 6. 1. 3. 3. 6. . invitation. . talks+1. . contribution. . talks. 1. 5. 1. Institute of Heavy Ion Physics,. School of Physics, Peking University. Huamu. . XIE. 10/16/2018. P3 meeting 2018, LANL. 1. Outline. Stable Operation of Cs. 2. Te photocathode for PKU DC-SRF Photoinjector. Presenter: Zihao Ding. Department of Materials Science & Engineering,. Stony Brook University. Outline. Introduction of . alkali antimonide photocathode. Introduction of the in-operando growth system.