Present status of the pohang light source.
The Pohang Light Source (PLS), the first large-scale accelerator complex in Korea, is a national users facility for basic and applied science research using synchrotron radiation. It consists of a 2 GeV linac as a full-energy injector and a low-emittance storage ring. The PLS linac is 150 m long with eleven 80 MW klystrons for a high accelerating gradient; the storage ring has the TBA-lattice with 12 super-periods and a 280 m circumference. Since the accelerators were commissioned in December 1994, the annual operation time exceeded 4600 h in 1996, and the user service time is expected to reach 3500 h in 1997. The facility was opened to general users in 1995 with two beamlines. Six beamlines are now operating: white-beam, NIM for ARUPS and gas-phase, photoemission spectroscopy, EXAFS, X-ray diffraction and lithography. Our long-term plan is to construct three new beamlines every year.
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Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, 790-784 Korea.