In vivodosimetry using a single diode for megavoltage photon beam radiotherapy: Implementation and response characterization
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چکیده
منابع مشابه
In vivo dosimetry using a single diode for megavoltage photon beam radiotherapy: Implementation and response characterization
The AAPM Task Group 40 reported that in vivo dosimetry can be used to identify major deviations in treatment delivery in radiation therapy. In this paper, we investigate the feasibility of using one single diode to perform in vivo dosimetry in the entire radiotherapeutic energy range regardless of its intrinsic buildup material. The only requirement on diode selection would be to choose a diode...
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Calculating weighting factors for mixing megavoltage photon beams to achieve desirable dose distribution in Radiotherapy
Introduction: Many studies have shown the effects of delivered dose distribution due to the incident photon energy on the tumor and healthy tissues. The ability to access the most appropriate radiation energy is essential to achieve the optimal treatment planning but there is a serious limitation in number of energies available on radiation therapy machines can restrict it. <s...
متن کاملCalculating Weighting Factors for Mixing Megavoltage Photon Beams to Achieve Desirable Dose Distribution in Radiotherapy
Background: In radiotherapy, low-energy photon beams are better adapted to the treated volume, and the use of high-energy beams can reduce hot spots in the radiation therapy. Therefore, mixing low and high energies with different ratios can control the rate of hotspots, as well as the dose distribution of the target volume.Material and Methods: The percentage depth doses (PDDs) were calculated ...
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The accurate measurement of the linear accelerator (linac) radiation isocenter is critical, especially for stereotactic treatment. Traditional quality assurance (QA) procedure focuses on the measurement of single radiation isocenter, usually of 6 megavoltage (MV) photon beams. Single radiation isocenter is also commonly assumed in treatment planning systems (TPS). Due to different flattening fi...
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ژورنال
عنوان ژورنال: Journal of Applied Clinical Medical Physics
سال: 2001
ISSN: 1526-9914,1526-9914
DOI: 10.1120/jacmp.v2i4.2598