CESR - An Electron Positron Colliding Beam Facility at Cornell

A proposal to modify the Cornell 12 GeV electron synchrotron facility to produce colliding beams of electrons and positrons was submitted to the National Science Foundation in May 1975. Subsequently, approval for design and prototype work was given and funding for the project is being requested by the NSF. Our goal is to complete this facility modification by October 1979. The status of the design and prototype work is described in this presentation.