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Electron Source Simulations for the ILC

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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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