CESR IV proposed transfer line design

CESR IV is a proposed dual-bore colliding beam accelerator for B-meson production. It has been designed to be built on the top of the injection synchrotron ring so as to co-exist with the present CESR III ring. In this paper we will describe the design of the CESR IV transfer line. This transfer line splits from the existing transfer line and guides the beam, extracted from the synchrotron, 43 cm vertically and then injects horizontally into the new ring. The trajectory, taking into account the available space, was determined by horizontal and vertical bending magnets and drift lines. The quadrupoles were optimized to match the Twiss parameters at the input and the output of the transfer line to those of the synchrotron and the new CESR IV ring respectively