Speaker
Description
The Electron-Ion Collider (EIC) is a long-term project to design and construct a facility to collide high energy polarized electron beams with polarized proton and heavy ion beams at center of mass energies from 20 to 140 GeV with luminosity up to 1034 cm-2s-1. This facility will be built on top of the Relativistic Heavy Ion Collider (RHIC), Brookhaven National Laboratory’s current operational high energy collider. In order to achieve the high luminosity outlined in the EIC’s design, Crab Cavities will be used around Interaction Points to correct for geometric effects due to crossing angles. These cavities have extremely strict phase noise requirements that are challenging to achieve (< -151 dBc/Hz at a 10 kHz offset from a 197 MHz Carrier). In order to meet these requirements, a low noise 2 GHz clock was designed using a 100 MHz OCXO. The 100 MHz OCXO was then locked to a separate low noise 100 MHz clock using an analog PLL to further reduce close in phase noise. This clock was then used with a low noise DAC (AD9164) to generate an RF drive signal at various frequencies of interest.
| Abstract Category | Hardware |
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