@article{oai:repo.qst.go.jp:00047628, author = {Hara, Yousuke and Furukawa, Takuji and Mizushima, Kota and Saotome, Naoya and Saraya, Yuichi and Tansho, Ryohei and Shirai, Toshiyuki and Noda, Koji and Takeshita, Eri and 原 洋介 and 古川 卓司 and 水島 康太 and 早乙女 直也 and 皿谷 有一 and 丹正 亮平 and 白井 敏之 and 野田 耕司 and 竹下 英里}, issue = {6}, journal = {Journal of the Korean Physical Society}, month = {Sep}, note = {For quality assurance (QA) of therapeutic ion beams, a QA tool having high spatial resolution and quick verification is required. An imaging system with a fluorescent screen is suitable for the QA procedure. We developed a compact and quick verification system (NQA-SCN) using a fluorescent screen with a charge-coupled device (CCD) camera for the sake of two-dimensional dosimetry. The NQA-SCN can be attached to the irradiation port and the water column. Several types of corrections were applied to the raw image obtained by using the NQA-SCN. Our goal is to use the NQA-SCN for three-dimensional dose verification. However, in carbon-ion therapy, the fluorescent light is decreased by the quenching effect due to the increased linear energy transfer (LET) in the Bragg peak. For three-dimensional dose verification, as a first approach, we investigated the quenching effect of a carbon-ion beam in water. Also, to evaluate the performance of NQA-SCN, we carried out experiments concerning QA procedures.}, pages = {1014--1018}, title = {Development of a Compact Dose Verification System Using a Fluorescent Screen for Carbon-Ion Therapy}, volume = {69}, year = {2016} }