Magnetic Design Of The LNLS Transport Line

INTRODUCTION The magnetic lattice of the transport line consists of a quadrupole doublet just after the underground LINAC, an achromatic vertical translation which brings the beam to the ring level and a horizontal achromatic deflection, including the septa, which leads the beam to the injection point [1]. Although the injection energy is chosen to be 100 MeV, the line has been designed for 250 MeV electron energy, allowing for future upgrade of the injection system either by recirculating the beam in the LINAC or by using SLED. The transport line is 20.031 m long, including the septa. A lay-out is shown in figure 1. The line presents some flexibility for optical function matching. Presently it can be operated either with the optical functions matched to the storage ring functions, or with the functions mismatched so that the injected beam ellipse occupies the maximum area in the available storage ring acceptance. The vacuum chamber will be cylindrical, with inner diameter<F1