ELSEVIER Nuclear Physics A738 (2004) 136-142 www.elsevier.cornilocate/npe Photonuclear reaction studies at synchrotron radiation facilities in Japan H. Utsunomiya*, K.Y. Hara, S. Goko, H. Akimune, T. Yamagata, M. Ohta, H. Ohgakib, H. Toyokawa T. Hayakawad, T. Shizumad, P. Mohr, Y.-W. Lui, H. Ohkumag H. Yoneharag, K. Sout,omeg, and M. Arnouldh Department of Physics, Konan University, 8-9-1 Okamoto, Higashinada, Kobe 658-8501, Japan Institute of Advanced Energy, Kyoto University, Gokanosho, Uji, Kyoto 611-0011, Japan Xa,t,ionalInstit,ut,e of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan Advanced Photon Research Center, Japan Atomic Energy Research Institute: Tokai, Ibaraki 319-1195, Japan Strahlent,herapie, Diakoniekrankenhaus Schwabisch Hall, D-74523 Scliwabisch Hall, Germany Cyclotron Institute, Texas A& M University, College Station, Texas 77843, USA g Japan Synchrotron Radiation Research Institute, Kouto, Mikazuki, Sayo, Hyogo 679-5198, Japan Institut dAstronomie et dAstrophysique, Universitk Libre de Bruxelles, Campus de la Plaine, CP-226, 1050 Brussels, Belgium. New 7-ray beams at synchrotron radiation facilities will give us unprecedented oppor- tunities to study photonuclear reactions of astrophysical interest. Konaii University and the Universitk Libre de Bruxelles launch a 5-year project, starting in 2004, of construct- ing ari extended NACRE compilation in which photonuclear reactions obtained within a dedicated international effort will be included. 1. INTRODUCTION There are three major real-photon sources that have been used in nuclear physics: radioactive isotopes, bremsstrahlung. and positron annihilation in flight [1,2]. Recently, *This work was supported in part by the Japan Private School Promotion Foundation and by the Japan Society for the Promotion of Science. 0375-94741s - see front matter 0 2004 Elsevier B.V All rights reserved doi: 10.1016/j.niiclphysa.2004.04.022