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Electron Source Simulations for the ILC

Electron Source Simulations for the ILC. Manu Lakshmanan Cornell University. ILC Electron Source. Our Simulations. Electron Gun Solenoidal Field to focus beam First Subharmonic Buncher (SHB-I). Photocathode Electron Gun. Beam without solenoidal field. Solenoidal field used to focus beam.

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Electron Source Simulations for the ILC

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  1. Electron Source Simulations for the ILC Manu Lakshmanan Cornell University SULI 2007

  2. ILC Electron Source SULI 2007

  3. Our Simulations • Electron Gun • Solenoidal Field to focus beam • First Subharmonic Buncher (SHB-I) SULI 2007

  4. Photocathode Electron Gun SULI 2007

  5. Beam without solenoidal field SULI 2007

  6. Solenoidal field used to focus beam SULI 2007

  7. Bunching T/4 SULI 2007

  8. Simulations of parameters Gun bias voltage 140-200kV SHB field strength Initial time pulse length 500ps-1ns z Focal length w/o space charge SULI 2007

  9. Bunching as a function of field strength, SHB-I SULI 2007

  10. SHB-I field strength, needed to compress bunch to 577 ps Initial time pulse length, SULI 2007

  11. Conclusions and future work • Modest gun bias voltage (~140 kV) is sufficient. • The possibility of using one SHB instead of two should be investigated. SULI 2007

  12. Acknowledgements • Dr. Axel Brachmann • SULI Program SULI 2007

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