Studies on beam optics and orbit correction calculation for BEPCⅡ LINAC

To meet the requirements of the Beijing electron positron linear accelerator upgrading, the studies on beam optics and orbit correction calculation are carried out. A program for beam optics and orbit correction calculation is developed. By means of least square method, the satisfying results are obtained. The program can actually refect the energy variation along the LINAC. With the program, beam optics parameters can be calculated and beam orbit can be corrected online. And the program will be used on BEPCⅡ LINAC.