Speaker
Description
The clock synchronization among distant FPGA circuits based on the White Rabbit (WR) network is a new technology that will be the standard in future accelerator projects. We plan to employ the IDROGEN carrier board in the SuperKEKB and future projects at KEK. This board was developed at CNRS/IN2P3, IJCLab. Several feasibility studies were carried out jointly by IJCLab and KEK. The IDROGEN-WR combined system can provide synchronized RF signals at individual slave nodes. Its rms noise level is sub-picosecond order. We developed a precise synchronization scheme between the IDROGEN-WR setup output and the RF clock employed in the SuperKEKB operating Low-Level RF system. Besides, the long-term stability of its relative phase was confirmed. The results indicate that SuperKEKB can increase the number of RF signal branches by implementing the IDROGEN carrier board for several synchronization purposes. Also, we plan to develop the distributed DAQ system as another application of the IDROGEN-WR combined system. The sampling clock of the ADC circuit on individual slave nodes is synchronized. We consider this approach as a unified, standalone DAQ system that covers the sensors installed in the large-scale accelerator beamline. Then, the causal relation among the simultaneous events in the accelerator operation is determined. The latest results and prospects of our R&D activities are reported.
| Minioral | Yes |
|---|---|
| IEEE Member | No |
| Are you a student? | No |