Speaker
Erdong Wang
(bnl)
Description
In order to construct a future electron-ion collider with high luminosity, a high average current, and high bunch charge, a polarized electron source is under R&D at Brookhaven National Laboratory. We present the R&D plan for achieving the required charge and current in the polarized eRHIC gun. The background is the low-risk Linac-Ring eRHIC plan of using a number of individual guns with RF deflectors for funneling the beams. The remaining high risk is having to achieve the required charge and current, that have been demonstrated separately, at the same time. The plan involves developing a large single cathode gun to generate 5.3 nC and 6 mA polarized electrons beam. We report the progress of large cathode prototype gun development, the beam line design and plan for measuring gun charge lifetime in high charge, high current operation. We will also present the high charge polarized electron source for an alternative Ring-Ring eRHIC scheme.
Primary author
Erdong Wang
(bnl)
