LASER-ELECTRON STORAGE-RING

A compact laser-electron storage ring (LESR) is proposed for electron beam cooling or x-ray generation, The LESR uses an intense laser pulse stored In a high-finesse resonator to interact repetitively with a ci rculating electron beam in the energy range from a few MeV to a few hu ndred MeV, The rapid damping caused by laser-electron interaction coun terbalances the intrabeam scattering effect, thus allowing electron be ams with relatively low energy to be cooled or stabilized in the stora ge ring to very low transverse emittances. Intense x rays are produced simultaneously from Compton backscattering and can be used for x-ray lithography and other applications. [S0031-9007(97)05245-9].