ERL PhotoInjector Gun Review

Jan 5, 2011, 8:00 AM → Jan 6, 2011, 6:00 PM America/New_York

374 (Wilson Synchrotron Lab)

Technical review of the progress on the current ERL Phase 1A DC photoemission gun. Review of the Phase 1B gun currently under design for operation in Room 128 for experimental development.

Wednesday, January 5

8:15 AM → 8:30 AM Breakfast / Coffee

8:30 AM → 8:45 AM Welcome / Overview

Welcome, overview of the schedule, charge the committee with the review of the current and 2nd generation ERL guns.

Speaker: Karl Smolenski (Cornell University)

Slides Smolenski_Welcome__01-05-2011.pdf

8:45 AM → 9:45 AM Mk I Gun Performance Review

Bruce will cover the performance of the current L0 gun, with an emphasis on changes to the original design to improve operational performance.

Speaker: Bruce Dunham (Cornell University)

Slides gun_history.pptx

9:45 AM → 10:45 AM Mk II Gun Design Overview

A detailed look at the design of the 2nd generation DC gun.

Speaker: Karl Smolenski (Cornell University)

Slides Smolenski_Overview__01-05-2011.pdf

10:45 AM → 11:00 AM Coffee Break

11:00 AM → 11:45 AM Discussion

11:45 AM → 12:15 PM ERL Gun Tour / Photocathode Facilities

Tour of ERL prototype linac Gun, Tour of Cathode Preparation Facilities

12:15 PM → 1:00 PM Working Lunch

1:00 PM → 1:30 PM Optimum Gun Voltage and Emittance Considerations

Introduction to gun optimization and beam dynamics issues

Speaker: Ivan Bazarov (Cornell University)

Slides gun_voltage_optimization.pdf

1:30 PM → 1:50 PM Electrode Geometry Optimization

What are the parameters that drive electrode geometry and how has the electrode geometry been optimized. Comparison with existing geometry.

Speaker: Jared Maxson (Cornell University)

Slides Electrodes1.pdf

1:50 PM → 2:10 PM Solenoidal Focusing in the gun

Magnetic focusing in the gun

Speakers: Jared Maxson (Cornell University), Karl Smolenski (Cornell University)

Slides Smolenski_Solenoids__01-05-2011.pdf solenoids1.pdf

2:10 PM → 2:30 PM Beam Dynamics Discussion

2:30 PM → 2:45 PM Coffee Break

2:45 PM → 3:45 PM HV System: Insulator, Power Supply, SF6 PV, Processing

Review and Plans for the HV system

Speaker: Bruce Dunham (Cornell University)

Slides HV_system.pptx

3:45 PM → 4:05 PM Ion Backbombardment Tracking

Speaker: Jared Maxson (Cornell University)

Slides ions1.pdf

4:05 PM → 5:05 PM Vacuum Requirements, Plans and Possibilites

Details of the Vacuum system and expected performance, review of recent tests

Speaker: Yulin Li (Cornell University)

Slides Gun_Vacuum.pptx

5:05 PM → 5:30 PM Open Discussion

Thursday, January 6

8:15 AM → 8:30 AM Breakfast / Coffee

8:30 AM → 9:00 AM Photocathodes: GaAs developments

Speaker: Xianghong Liu (Cornell University)

Slides GaAs_Photocathode_Developement.pptx

9:00 AM → 9:15 AM Photocathodes: GaAs Electron Energy Analyzer

Report on the status of the electron energy analysis setup

Speaker: Siddharth Karkare (Cornell University)

Slides Gun_review_-_photocathodes.pptx

9:15 AM → 10:00 AM Photocathodes: MultiAlkali developments

Progress on MultiAlkali cathodes, plans for near future

Speaker: Luca Cultrera (Cornell Unviersity)

Slides Multialkali_photocathode_CORNELL.ppt

10:00 AM → 10:15 AM Cathodes Discussion

10:15 AM → 10:30 AM Coffee Break

10:30 AM → 10:50 AM Two Gap Gun Design Ideas

Speaker: Jared Maxson (Cornell University)

Slides twogap1.pdf

10:50 AM → 11:00 AM Cathode Cooling Ideas

Speaker: Mr Karl Smolenski (Cornell University)

Slides Smolenski_Cathode_Cooling__01-06-2011.pdf

11:00 AM → 11:30 AM Committee input for Cornell Gun R&D

11:30 AM → 12:00 PM Opportunities for Collaboration

12:00 PM → 1:00 PM Working Lunch

1:00 PM → 2:00 PM New Directions for future DC Guns

Speakers: Bruce Dunham (Cornell University), Ivan Bazarov (Cornell University)

2:00 PM → 2:30 PM Writting Assignments / Cmte Reports

chaired by Matt Poelker (TJNAF)

document Cornell_MkII_gun_review_comments_final.pdf