Operational status of Pohang Light Source

The PLS, a 2-GeV dedicated electron synchrotron light source, has been in normal operation mode for users since September 1995. It consists of 2-GeV electron linear accelerator, which works as a full energy injector, and a storage ring. The linac is 150-m long and has 42 accelerating sections. The storage ring has a 12-cell TBA type lattice with 4 RF cavities. The construction of PLS was started in 1988, and the installation was completed in August 1994. From then until December 24, 1994, which we call the first commissioning phase, we succeeded in stacking the 2-GeV electrons up to 300-mA in the storage ring. After baking out the vacuum chamber, the second commissioning was performed from April to July 1995. In 1996, the user beam time reaches about 2,800 hours among 4,800 hours of the accelerator operation time. We present the current operational status of PLS in this paper