@article{oai:repo.qst.go.jp:00043736,
 author = {Ohmori, Chihiro and Kanazawa, Mitsutaka and Noda, Kouji and Kawashima, Masahiro and Misu, Toshiyuki and Mori, Yoshiharu and Sugiura, Akinori and Takagi, Akira and Uesugi, Tomonori and 金澤 光隆 and 野田 耕司 and 三須 敏幸 and 森 義治 and 杉浦 彰則 and 高木 昭 and 上杉 智教},
 journal = {Nuclear Instruments & Methods in Physics Research Section A},
 month = {May},
 note = {A magnetic alloy (MA)-loaded cavity has been installed in Heavy Ion Medical Accelerator in Chiba (HIMAC). A beam study with a new Direct Digital Synthesis (DDS) system has been performed. The DDS system can generate multi-harmonic RF that includes up to 3 different RF frequencies. The multi-harmonic RF is amplified by a solid state and final amplifiers. These harmonic frequencies are in the band width of the MA RF system. Beam acceleration was performed by the system, and the acceleration efficiency was improved by both dual and triple harmonic RF.},
 pages = {249--258},
 title = {A multi-harmonics RF system using a MA cavity},
 volume = {547},
 year = {2005}
}