Accurate geodetical settlement of reference points for HIMAC synchrotrons at NIRS

Elements of HIMAC synchrotrons are aligned on straight lines connecting between reference points. The points are settled accurately by means of a lattice formed by 19 points consisting of 12 reference points and 7 supplementary points. Measured distance data between the points are stored in a computer and are processed by a software for network calculation to give probable distances between points and probable positions of the points. Positioning of the reference points is repeated to reach at acceptable tolerances. Achieved accuracy of the reference points is a displacement within 0.26 mm from theoretical value and a standard deviation of error ellipse within 0.05 mm. (author)