Hiroshima Synchrotron Radiation Center, Hiroshima University 2-313 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-0046, Japan TEL +81-82-424-6293 FAX +81-82-424-6294E-mail: hisor(AT)hiroshima-u.ac.jp(*Please replace (AT) with @)