We completed the commissioning of the PLS 2-GeV electron electron linac and a pulse stretcher ring is one of the most linac, which is a full energy injector for the storage ring of the promising solutions. Pohang Light Source, in June 1994. The prime mission for The Pohang Accelerator Laboratory (PAL) has recently providing beams to the storage ring requires a few minutes for each completed the 2-GeV synchrotron radiation source named the injection, and a few times per day when the PLS is under

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... the Pohang Light Source (PLS). The PLS will serve as a lownormal operation. Hence, we can utilize high energy electron emittance light source for various research such as basic science, beams to the electron scattering experiments. In order to produce applied science, and i ndustrial and medical applications [1]. There high current and high duty factor beams, the design of a pulse is a 2-GeV linear accelerator as a full energy injector to the PLS. stretcher ring is underway. This paper presents the result of the The prime mission for providing electron beams to the storage ring design study as well as the experimental plan. requires a few minutes for each injection and a few times per day