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Varian 23EX加速器固定剂量率旋转调强技术的Portal Dosimetry验证
加速器 固定剂量率 旋转调强 电子射野影像系统 剂量验证
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2020/6/15
应用Varian公司的Portal Dosimetry系统和ScandiDos公司的Delta4三维半导体阵列对Varian 23EX加速器固定剂量率旋转调强（CDR-VMAT）计划进行验证并对比分析。方法：随机选取10例头颈部肿瘤患者、10例胸部肿瘤患者和10例腹部肿瘤患者，采用RayStation计划系统在Varian 23EX加速器上设计CDR-VMAT。照射野根据肿瘤部位合理设计，射线能量...
Accuracy of the Small Field Dosimetry Using the Acuros XB Dose Calculation Algorithm within and beyond Heterogeneous Media for 6 MV Photon Beams
Photon Dose Calculation Inhomogeneities Acuros XB
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2013/1/29
Purpose: The dosimetric accuracy of the recently released Acuros XB advanced dose calculation algorithm (Varian Medical Systems, Palo Alto, CA) is investigated for single radiation fields incident on ...
Biological Dosimetry Following X-ray Irradiation
Biological dosimetry X-ray chromosome aberrations
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2009/6/29
Control radiation dose-response curves are necessary in evaluating the absorbed radiation dose of similar radiation quality following radiation accidents or in monitoring the health of both the public...
Comparison of Rectal Dose in Different Techniques of Prostate Cancer External-Beam Radiotherapy Based on TLD and XR Type T GAFCHROMIC® Film Dosimetry
Rectal dose Radiation therapy TLD,XR type T film Prostate cancer
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2015/9/14
Background: Radiotherapy of prostate carcinoma often results in high doses to surrounding structures, such as the rectum and bladder. Therefore, these organs should be closely monitored. The aim of th...