Polarized proton target for RI Beam experiments T. Uesaka, T. Wakui, S. Sakaguchi, T. Kawahara and H. Sakai Eur. Phys. J. Special Topics, 150 (2007) 71-74 Published online: 08 December 2007 DOI: 10.1140/epjst/e2007-00269-5