@inproceedings{oai:repo.qst.go.jp:00054690,
 author = {岩田, 佳之 and 高田, 栄一 and 野田, 耕司 and 白井, 敏之 and 古川, 卓司 and 水島, 康太 and 竹下, 英里 and 門脇, 徹人 and 藤本, 哲也 and 佐野, 悦信 and 内山, 宙志 and 岩田 佳之 and 高田 栄一 and 野田 耕司 and 白井 敏之 and 古川 卓司 and 水島 康太 and 竹下 英里 and 門脇 徹人},
 book = {第7回日本加速器学会年会プロシーディングス},
 month = {Aug},
 note = {Multiple-energy operation with extended flattop is being developed at the HIMAC. This operation uses synchrotron operation-patterns having a stepwise flattop. With these patterns, the beam would be primarily accelerated to the maximum energy, and then successively decelerated to the lower energies. Having extended the flattops and extracted the beam during these flattops, heavy ions having various energies can be provided within a single synchrotron cycle. Since the extraction energy can be quickly changed by the accelerator itself, no energy degrader will be required to control a depth dose-distribution. Having applied this multiple-energy operation to our fast raster-scanning irradiation, we can considerably reduce the total irradiation time and concurrently obtain an excellent depth dose-distribution. The beam acceleration and extraction tests using this operation were made. Successful results of the tests proved the effectiveness of this multiple-energy operation.},
 title = {MULTIPLE-ENERGY CONTROL AT THE HIMAC SYNCHROTRONS},
 year = {2010}
}