3d Simulations Of Secondary Electron Generation And Transport In A Diamond Amplifier For Photocathodes
2007 IEEE PARTICLE ACCELERATOR CONFERENCE, VOLS 1-11(2007)
摘要
The Relativistic Heavy Ion Collider (RHIC) contributes fundamental advances to nuclear physics by colliding a wide range of ions. A novel electron cooling section, which is a key component of the proposed luminosity upgrade for RHIC, requires the acceleration of high-charge electron bunches with low emittance and energy spread. A promising candidate for the electron source is the recently developed concept of a high quantum efficiency photoinjector with a diamond amplifier. We have started to implement algorithms, within the VORPAL particle-in-cell framework, for modeling of secondary electron and hole generation, and for charge transport in diamond. The algorithms include elastic and various inelastic scattering processes over a wide range of charge carrier energies. Initial results from the implemented capabilities will be presented and discussed.
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关键词
beam handling techniques,electron sources,particle beam bunching,photocathodes,RHIC luminosity upgrade,Relativistic Heavy Ion Collider,charge transport,diamond amplifier,electron cooling section,high quantum efficiency photoinjector,high-charge electron bunches,photocathodes,secondary electron generation,
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