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The 32nd Advanced ICFA Beam Dynamics Workshop on Energy Recovering Linacs

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Program of WG1: Electron Guns and Injector Design

Sunday, March 20, 2005
8:00-8:30Continental Breakfast - CEBAF Center Lobby
WG1 Session 1 - Technology Choices I (Chair: Ben-Zvi) - CEBAF Center Auditorium
8:30-8:55 Technology Challenges for RF Guns as ERL source, Dowell (SLAC)
8:55-9:20 Technology Challenges for DC Guns as ERL source, Sinclair (Cornell)
9:20-9:33 Performance of the 10 mA DC GaAs photocathode gun in the JLab IR Upgrade FEL, Hernandez-Garcia (JLAB)
9:33-10:30 Discussion & Work on the Charge
10:30-11:00 Coffee Break
WG1 Session 2 - Technology Choices II (Chair: Bazarov) - CEBAF Center Auditorium
11:00-11:25 Technology Challenges for SRF Guns as ERL Source in View of BNL Work, Burrill (BNL)
11:25-11:50 Technology Challenges for SRF Guns as ERL Source in View of Rossendorf Work, Janssen (Rossendorf)
11:50-12:15 Novel, Hybrid (Normal-Superconducting) RF Injector for High-Average-Current Electron Sources, Nguyen (LANL)
12:15-13:00 Discussion & Work on the Charge
13:00-14:00 Lunch (provided) - CEBAF Center Atrium
WG1 Session 3 - Beam Dynamics & Modelling (Chair: Ben-Zvi) - CEBAF Center Auditorium
14:00-14:25 Emittance Compensation Theory Overview, Rosenzweig (UCLA)
14:25-14:50 Multivariate optimization of Injector Performance, Bazarov (Cornell)
14:50-15:03 Comment on the invariant envelope solution in RF photoinjectors, Wang (ANL)
15:03-15:16 Optimal Distributions for Photoinjector RF Guns, Limborg (SLAC)
15:16-15:30 Discussion
15:30-16:00 Coffee Break (and sign up for FEL tour)
16:00-16:45 WG1 Session (0.75 hours) - Discussion & Work on the Charge
16:45-18:15 Jlab FEL tour - Leave from CEBAF Center Lobby

Monday, March 21, 2005
8:00-8:30Continental Breakfast
WG1 Session 4 - Cathodes/Photoemission (Chair: Bazarov) - CEBAF Center Auditorium
8:30-8:55 Photocathode options and state-of-the-art, Srinivasan-Rao (BNL)
8:55-9:20 Secondary emission cathodes, Chang (Stony Brook University)
9:20-9:33 DC gun test bench and superlattice GaAs as photocathode, Nishitani (JAERI)
9:33-9:46 Diamond electron cathodes, Minehara (JAERI)
9:46-10:30 Discussion & Work on the Charge
10:30-11:00 Coffee Break
WG1/WG2 Joint Session - (Chair: Owen) - CEBAF Center Auditorium
11:00-11:25 Optimal merger optics and matching to the main linac, Litvinenko (BNL)
11:25-11:50 Space charge, CSR, and optimal merger energy, Lidia (LBNL)
11:50-12:05 Multiple-parameter optimization of ERL injector, Hajima (JAERI)
12:05-13:00 Discussion: emittance control & multiple modes of operation
13:00-14:00 Lunch (on your own)
14:00-15:00 WG1/WG2 Joint Session - Merger Design Exercise
15:00-15:30 Coffee Break
WG1 Session 5 - Modelling & Novel Concepts (Chair: Ben-Zvi) - CEBAF Center Auditorium
15:30-15:55 Optimization and Beam Dynamics of an SRF Gun, Ferrario (INFN)
15:55-16:08 Field-Emission Cathode Gating for RF Electron Guns, Lewellen (ANL)
16:08-16:21 Conceptual design for the KEK-ERL test accelerator, Suwada (KEK)
16:21-16:30 Discussion
16:30-17:15 Working Group Status Reports - CEBAF Center Auditorium
17:15-17:30 Group Photo - CEBAF Center Lobby
17:30 Buses to Dinner
18:00-21:00 Workshop Dinner at the Mariners Museum

Tuesday, March 22, 2005
8:00-8:30Continental Breakfast
WG1 Session 6 - Laser Issues (Chair: Bazarov) - CEBAF Center Auditorium
8:30-8:55 Laser State-of-the-art: Performance, Stability and Programmable Repetition Rate, Shinn (JLAB)
8:55-9:20 Laser Pulse Shaping for Photoinjectors, Tomizawa (Spring-8)
9:20-10:30 Discussion & Work on the Charge
10:30-11:00 Coffee Break
WG1/WG4 Joint Session - CEBAF Center Auditorium
11:00-11:20 Summary of injector parameters & diagnostics needs, Benson (JLAB)
11:20-11:40 Summary of diagnostics capabilities, Graves (MIT)
11:40-13:00 Discussion
13:00-14:00 Lunch (on your own)
WG1 Session 7 - Magnetized Beams / Polarization (Chair: Ben-Zvi) - CEBAF Center Auditorium
14:00-14:25 Polarized cathodes and the prospects for high current, Poelker (JLAB)
14:25-14:38 Production of magnetized beams in photoinjectors, Piot (FNAL)
14:38-15:30 Discussion & Work on the Charge
15:30-16:00 Coffee Break
16:00-16:45 WG1 Discussion & Work on the Charge - CEBAF Center Auditorium
16:45-18:00 Writing of WG Reports - CEBAF Center A110

Wednesday, March 23, 2005
8:00-8:30 Continental Breakfast
8:30-10:30 WG1 Discussion - CEBAF Center Auditorium
10:30-11:00 Coffee Break - CEBAF Center Lobby
11:00-13:00 Closing Plenary: Reports of WG1, WG2, WG3, WG4 part 1, WG4 part 2 - CEBAF Center Auditorium
13:00 Adjourn