TY - CPAPER
AU - Hara, Y.
AU - Furukawa, T.
AU - Mizushima, K.
AU - Noda, K.
AU - Saotome, N. S.
AU - Saraya, Y.
AU - Shirai, T.
AU - Takeshita, E.
AU - Tansho, R.
TI - Development of Three-Dimensional Dose Verification System using a Fluorescent Screen in Ion Beam Therapy
J2 - Proc. of IBIC2014
AB - For quality assurance (QA) of therapeutic ion beams, QA tool having high spatial resolution and quick verification is required. The imaging system with a fluorescent screen is suitable for QA procedure. We developed a quick verification system (NQA-SCN) using a fluorescent screen with a charge-coupled device (CCD) camera for the sake of two dimensional dosimetry. In carbon-ion therapy, the fluorescent light is decreased by suffering from quenching effect due to the increased linear energy transfer (LET) in the Bragg peak. For the use of three-dimensional dose verification, we performed a simple correction for quenching effect and several types of corrections for the optical artifact. In addition, NQA-SCN is attached with an accordion-type water phantom which makes it possible to easily change measurement depth. To evaluate the performance of NQA-SCN, we carried out experiments concerning QA procedures. In my presentation, we provide correction methods and detailed analysis of measured results.
PB - JACoW
CY - Geneva, Switzerland
SP - 601
EP - 604
KW - ion
KW - brightness
KW - background
KW - experiment
KW - heavy-ion
DA - 2014/10
PY - 2014
SN - 978-3-95450-141-0
UR - http://jacow.org/IBIC2014/papers/wepf24.pdf
ER -