| Title |
Prototype of White Rabbit Network in LHAASO |
| Authors |
- H. Li, G.H. Gong
Tsinghua University, Beijing, People's Republic of China
- Q. Du
LBNL, Berkeley, California, USA
|
| Abstract |
Synchronization is a crucial concern in distributed measurement and control systems. White Rabbit provides sub-nanosecond accuracy and picoseconds precision for large distributed systems. In the Large High Altitude Air Shower Observatory project, to guarantee the angular resolution of reconstructed air shower event, a 500 ps overall synchronization precision must be achieved among thousands of detectors. A small prototype built at Yangbajin, Tibet, China has been working well for a whole year. A portable calibration node directly synced with the grandmaster switch and a simple detectors stack named Telescope are used to verify the overall synchronization precision of the whole prototype. The preliminary experiment results show that the long term synchronization of the White-Rabbit network is promising and 500 ps overall synchronization precision is achievable with node by node calibration and temperature correction.
|
| Funding |
Key Laboratory of Particle & Radiation Imaging, Open Research Foundation of State Key Lab of Digital Manufacturing Equipment & Technology in Huazhong Univ. of Science & Technology |
| Paper |
download WEPGF126.PDF [0.316 MB / 4 pages] |
| Poster |
download WEPGF126_POSTER.PDF [1.233 MB] |
| Conference |
ICALEPCS2015, Melbourne, Australia |
| Series |
International Conference on Accelerator and Large Experimental Physics Control Systems (15th) |
| Proceedings |
Link to full ICALEPCS2015 Proccedings |
| Session |
Poster session |
| Date |
21-Oct-15 17:15–18:15 |
| Main Classification |
Timing and Sync |
| Keywords |
network, detector, timing, controls, experiment |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Lou Corvetti (AS, Clayton, Australia); Kathleen Riches (SLSA, Clayton, Australia); Volker RW Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-148-9 |
| Published |
December 2015 |
| Copyright |
|
