Speaker
Description
ePIC is the first general purpose detector at the EIC (Electron Ion Collider) accelerator complex at BNL.
The data acquisition synchronization among the on-line computers and various detector sub-systems is described. The system includes a Global Timing Unit (GTU), hundreds of Data Aggragation Modules (DAM), and thousands of ReadOut units (RDO), (and countless cables, copper and fiber). The data acquisition deadtime should be minimal, and the jitter of distributed clock should be less than 5ps (relative to the beam).
The GTU interfaces with the collider for the beam synchronous clock and the beam orbital structure, with the run-control for data acquisition, and with DAM boards. The DAM fans out the GTU signals (runcontrol, clock), configures the RDO/FrontEnd Electrocnics including ASICs), passes on the DAQ status. The RDO receives/recovers the beam synchronous clock and distributes to the frontend (ASICs), configures the frontends, and collects data/status and sends to the DAM.
Some conceptual tests were performed and some results are presented. More tests will be performed on the (pre)prototype boards.
| Minioral | Yes |
|---|---|
| IEEE Member | No |
| Are you a student? | No |
