Longitudinal Phase Space Matching between Microtrons at 185 MeV

Electrons are accelerated to 185 MeV by a microtron. Then, they are injected into another microtron to boost the net energy up to a few GeV. Between the two microtrons both longitudinal and transverse phase space matching are required. In this paper, we consider a longitudinal phase ellipse matching which utilizes triple left-right-left sector dipoles to induce a negative phase angle shear. This is accomplished because a high energy particle travels a shorter distance through the dipole system than a low energy particle.