Speaker
Description
RAON requires a stable geodetic reference framework to support the precision alignment of accelerator beamlines and experimental devices. This work presents the maintenance of the RAON survey control network, including periodic measurements to evaluate floor monument stability and update alignment reference coordinates. As measurements must be completed within limited shutdown periods, recent efforts have focused on streamlining the workflow, optimizing instrument deployment, and improving coordinate update procedures without compromising network reliability, integrating digital leveling for vertical coordinates with laser tracker measurements for horizontal coordinates. Furthermore, within the Unified Spatial Metrology Network (USMN) analysis, an extended overlapping stationing strategy is proposed, broadening per-station coverage to maximize the number of monuments jointly observed by adjacent stations. This increased geometric redundancy is anticipated to strengthen the network's global rigidity during bundle adjustment and is expected to contribute to more reliable coordinate updates.
