The measurement of backscatter factors of kilovoltage X-ray beams using Gafchromic™ EBT2 film [0.03%]
利用GAFCHROMIC EBT2胶片测量管电压X射线束的背散射因子
L Smith,R Hill,M Nakano et al.
L Smith et al.
Backscatter factors are essential in the determination of radiation dose for kilovoltage X-ray beams. The accurate measurement of backscatter factors in water (B (W)) is difficult and published values are based largely on Monte Carlo calcul...
The use of a mixed Poisson model for tumour control probability computation in non homogeneous irradiations [0.03%]
非均匀照射下采用混合泊松模型进行肿瘤控制概率计算的方法
Francisco Cutanda Henríquez,Silvia Vargas Castrillón
Francisco Cutanda Henríquez
Tumour control probability (TCP) is the probability of destroying every clonogen in a tumour as a result of a Radiation Therapy treatment. Assuming absorbed dose homogeneity throughout the tumour volume, TCP can be easily derived from a cel...
Evaluation of the effects of gold nanoparticle shape and size on contrast enhancement in radiological imaging [0.03%]
评价金纳米粒子形状和尺寸对放射影像对比增强的影响
Price Jackson,Selvakannan Periasamy,Vipul Bansal et al.
Price Jackson et al.
There has been increasing interest in the use of a nanoparticle-based media as a contrast-enhancement agent in medical imaging, particularly with gold Nanoparticles in radiography. Particularly attractive, is the prospect of modifying the s...
Evaluation of a Gafchromic EBT2 film dosimetry system for radiotherapy quality assurance [0.03%]
评估一种用于放射治疗质量保证的Gafchromic EBT2胶片剂量检测系统
T Aland,T Kairn,J Kenny
T Aland
This study examines the dosimetric accuracy of Gafchromic EBT2 model radiochromic film for use in radiotherapy quality assurance. In this study, film was scanned using an Epson Perfection V700 flatbed scanner in transmission mode at 75 DPI ...
ROPES eye plaque brachytherapy dosimetry for two models of (103)Pd seeds [0.03%]
两种103Pd籽源的ROPES眼瘤后装治疗剂量学研究
Pooneh Saidi,Mahdi Sadeghi,Alireza Shirazi et al.
Pooneh Saidi et al.
Brachytherapy dose distributions are calculated for 15 mm ROPES eye plaque loaded with model Theragenics200 and IR06-(103)Pd seeds. The effects of stainless steel backing and Acrylic insert on dose distribution along the central axis of the...
A study into the relationship between the measured penumbra and effective source size in the modeling of the Pinnacle RTPS [0.03%]
关于笔形束有效源的实验研究及其在Pinnacle系统中建立射野模型时的表现关系研究报告
Johnson Yuen,Nick Hardcastle,Peter Metcalfe
Johnson Yuen
The effect of detector size in the broadening of the penumbra on the model in the Pinnacle RTPS is investigated. A second order polynomial was devised to correlate the source size parameter with the RTPS-calculated penumbra. The optimal sou...
Simulation of fractionated and continuous irradiation in photodynamic therapy: study the differences between photobleaching and singlet oxygen dose deposition [0.03%]
光动力疗法中连续光照和分次照射的模拟研究：探讨荧光漂白与单线态氧剂量沉积的区别
Nadia Naghavi,Mohammad Hossein Miranbaygi,Ameneh Sazgarnia
Nadia Naghavi
This study aims to compare the continuous irradiation with fractionated irradiation for photodynamic therapy (PDT) of solid tumors with intraperitoneally administered 5-aminolaevulinic acid (ALA). Therefore, considering the complex physiolo...
Evaluation of effective energy using radiochromic film and a step-shaped aluminum filter [0.03%]
使用射线照相胶片和阶梯状铝滤过板测定有效能量
T Gotanda,T Katsuda,R Gotanda et al.
T Gotanda et al.
Although the half-value layer (HVL) is one of the important parameters for quality assurance (QA) and quality control (QC), constant monitoring has not been performed because measurements using an ionization chamber (IC) are time-consuming ...
Karl Roozen,Tomas Kron,Annette Haworth et al.
Karl Roozen et al.
Radiochromic film is a self developing two-dimensional dosimeter system that is widely used in radiotherapy. Since its development some 40 years ago many improvements have been made; however the sensitivity can vary across the film and a no...
Development of a dosimetry inter-comparison for IMRT as part of site credentialing for a TROG multi-centre clinical trial for prostate cancer [0.03%]
IMRT剂量校准多中心对照试验作为前列腺癌TROG临床试验资格确认的一部分而开展的研究
B Healy,J Frantzis,R Murry et al.
B Healy et al.
A methodology has been developed for a dosimetry inter-comparison of intensity modulated radiation therapy (IMRT) delivery in Australasia. The inter-comparison is part of site credentialing for those sites participating in the prostate frac...