The phase-I beamlines will be available to user in beams of a low emittance and 2016 and will serve scientists worldwide. The TPS is designed to emphasize electron a great brilliance.  The TPS storage ring comprises 24 double-bend achromat (DBA) cells, with six straight sections of 12 meters and eighteen straight sections of 7 meters in length. The TPS uses two sets of KEKB type superconducting RF cavities to achieve an electron current of 500 mA in a top-up injection mode and to diminish the high-order-mode instability excited by the electron beam.