Alignment assembly system of two axes

The mechanical axis alignment of Dragon-Ⅰ and -Ⅱ linear induction accelerators(LIAs) requires the error of linearity and level no more than 0.2 mm and the error of angle no more than 2". This paper analyzes the error limit of the major specifications that influence the LIAs’ alignment. The total station, level, theodolite and laser tracker are selected for measurement. An alignment control network including large hexagonal network and small quadrilateral network covering the whole LIA area has been built. Components for precise mechanical adjustment and alignment are designed, and the alignment process and technique of the LIA system are presented. This method has been verified in “Dragon-Ⅰ” LIA.