CAJ | 학술논문

目的对Seven29TM二维电离室矩阵的剂量学性能进行评价.方法利用同体水、IBADose 1剂量仪和RITl 13胶片剂量分析系统,对Seven29TM二维电离室矩阵进行了刻度,对其在固体水中绝对剂量和相对剂量的测量精度进行了检测与验证.同时探讨了Seven29TM二维电离宅矩阵的剂量线性和能最响应.结果固体水是水的理想等效模体.Seven29TM二维电离窒矩阵在同体水中的刻度因子为1.007,绝对剂量的测量误差<2.1%,相对剂虽测量误差<3.8%.Seven29TM二维电离室矩阵剂量线性误差<0.2%,能昔响应误差<1.2%.结论 Seven29TM二维电离事矩阵在放疗中具有很好的剂量学特性,是开展调强放疗技术的有力工具.
목적 대Seven29TM이유전리실구진적제량학성능진행평개.방법 이용동체수、IBADose 1제량의화RITl 13효편제량분석계통,대Seven29TM이유전리실구진진행료각도,대기재고체수중절대제량화상대제량적측량정도진행료검측여험증.동시탐토료Seven29TM이유전리택구진적제량선성화능최향응.결과 고체수시수적이상등효모체.Seven29TM이유전리질구진재동체수중적각도인자위1.007,절대제량적측량오차<2.1%,상대제수측량오차<3.8%.Seven29TM이유전리실구진제량선성오차<0.2%,능석향응오차<1.2%.결론 Seven29TM이유전리사구진재방료중구유흔호적제량학특성,시개전조강방료기술적유력공구.
Objective To evaluate the desimetrie performances of Seven29TM two-dimensional ion chamber array(2D-array).Methods Seven29TM 2D-array was calibrated by using solid water,IBA Dose 1 dosimeter and RIT 113 film dosimetry system.Tests and verifications were performed to evaluate the preci sion of absolute and relative doses of the 2D-array in solid water.Meanwhile ,the dose linear and energy re sponse of the 2D-array were studied.Results Solid water was a good equivalent phantom of water.For 2D-array,the calibration factor in solid water was 1.007 ,the absolute dose error was less than 2.1% ,the rel ative dose error was less than 3.8% and the errors of dose linear and energy response were hess than 0.2% and 1.2% ,respectively.Conclusions The Seven29TM 2D-array,possessing excellent desimetry perform ances,is a powerful tool for intensity modulated radiotherapy.