Simulations of Electron Source for International Linear Collider at Cornell University
This report presents simulations conducted on the electron source for the International Linear Collider (ILC) as part of the SULI program at Cornell University. Key elements include the design of an electron gun, the implementation of a solenoidal field for beam focusing, and the examination of the First Subharmonic Buncher (SHB-I). The simulations analyze crucial parameters such as gun bias voltage, SHB field strength, and initial pulse length. The findings suggest a modest bias voltage of around 140 kV is adequate and recommend further investigation of using a single SHB.
Simulations of Electron Source for International Linear Collider at Cornell University
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Presentation Transcript
Electron Source Simulations for the ILC Manu Lakshmanan Cornell University SULI 2007
ILC Electron Source SULI 2007
Our Simulations • Electron Gun • Solenoidal Field to focus beam • First Subharmonic Buncher (SHB-I) SULI 2007
Photocathode Electron Gun SULI 2007
Beam without solenoidal field SULI 2007
Solenoidal field used to focus beam SULI 2007
Bunching T/4 SULI 2007
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
Bunching as a function of field strength, SHB-I SULI 2007
SHB-I field strength, needed to compress bunch to 577 ps Initial time pulse length, SULI 2007
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
Acknowledgements • Dr. Axel Brachmann • SULI Program SULI 2007
