• K. Hatanaka, M. Fukuda, M. Kibayashi, S. Morinobu, K. Nagayama, T. Saito, H. Tamura, T. Yorita
  Osaka University/RCNP, Osaka

The Re­search Cen­ter for Nu­cle­ar Physics (RCNP) cy­clotron cas­cade sys­tem has been op­er­at­ed to pro­vide high qual­i­ty beams for var­i­ous ex­per­i­ments. In order to in­crease the physics op­por­tu­ni­ties, the Az­imuthal­ly Vary­ing Field (AVF) cy­clotron fa­cil­i­ty was up­grad­ed re­cent­ly. A flat-top­ping sys­tem and an 18-GHz su­per­con­duct­ing Elec­tron Cy­clotron Res­o­nance (ECR) ion source were in­tro­duced to im­prove the beam’s qual­i­ty and in­ten­si­ty. A new beam line was in­stalled to di­ag­nose the char­ac­ter­is­tics of the beam to be in­ject­ed into the ring cy­clotron and to by­pass the ring cy­clotron and di­rect­ly trans­port low en­er­gy beams from the AVF cy­clotron to ex­per­i­men­tal halls. A sep­a­ra­tor is equipped to pro­vide RI beams pro­duced by fu­sion re­ac­tions at low en­er­gy and by pro­jec­tile frag­men­ta­tions at high en­er­gy. De­vel­op­ment has con­tin­ued to re­al­ize the de­signed per­for­mance of these sys­tems.

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