Photon Factory, KEK^* ERATO, JST, Japan^** Tokyo Institute of Technology, Japan^*** Universite Rennes 1, France^****
○Shin-ichi Adachi^* Shunsuke Nozawa^** Ryoko Tazaki^** Laurent Guerin^** Kohei Ichiyanagi^* Matthieu Chollet^*** Tokushi Sato^*** Ayana Tomita^*** Eric Collet^**** Marylise Buron-Le Cointe^**** Johan Hebert^**** Herve Cailleau^**** Hiroshi Sawa^* Hiroshi Kawata^* Shin-ya Koshihara^***

Time-resolved X-ray experiments using synchrotron radiation sources are becoming general and powerful tools to explore structural dynamics of condensed matters in material and biological sciences. A new insertion device beam line NW14A at the Photon Factory Advanced Ring (PF-AR) was constructed and is now operational for 100ps-resolved X-ray diffraction/scattering and XAFS experiments. The primary scientific targets of the NW14A will be condensed matter systems which can be triggered reversibly by a laser pulse. In particular, photo-induced phase transitions (PIPT) in molecular charge-transfer crystals are one of the main targets of the research. The specifications, the performance and preliminary results of the beam line will be presented.