Beam studies in diagnostic beamline at PLS

A diagnostic beamline has been operated in the PLS storage ring for the diagnostics of electron- and photon-beam properties. It consists of two optical imaging systems: a visible light imaging system and a soft X-ray imaging system. We measure transverse and longitudinal beam structure with a streak camera to study short-time beam dynamics from the visible light image. Accurate transverse beam size is measured with soft X-ray image to minimize diffraction error. In this paper, results of the beam studies and the measurement of beam parameters are summarized and discussed.