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Showing 1 to 9 of 9 for “"absolute dose"”.
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Absolute Dose Verification in Intensity Modulated Radiation Fields
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Absolute Dose Verification in Intensity Modulated Radiation Fields
This work is to device a method for measuring the absolute dose for Intensity modulated radiation fields. An accurate verification and physical measurement of the computed absolute dose in Intensity modulated radiation therapy (IMRT) is a challenging task. There are many sources of errors …
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Evaluation of Intensity Modulated Radiation Therapy (Imrt) Delivery Error Due to Imrt Treatment Plan Complexity and Improperly Matched Dosimetry Data
… is a technique that delivers a highly conformal dose distribution to a target volume while attempting to maximally spare the surrounding normal tissues. IMRT is a common treatment modality used for treating head and neck (H&N) cancers, and the presence of many critical structures in this region …
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Development and Implementation of An Anthropomorphic Pediatric Spine Phantom For The Assessment of Craniospinal Irradiation Procedures In Proton Therapy
… as a cancer treatment modality, as it allows for dose deposition to the target volume while sparing the surrounding healthy tissue. This technique is advantageous for craniospinal pediatric patients, as it reduces the radiation side effects that can occur. The purpose of this study is to design an …
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Commissioning An Anthropomorphic Spine and Lung Phantom For Remote Dose Verification of Institutions Participating In Rtog 0631
… spinal canal, esophagus, heart, and lungs. The dose to the target volume was measured with axial and sagittal planes of radiochromic film and thermoluminescent dosimeters (TLD). The dose distributions were measured with the radiochromic film calibrated to the absolute dose measured by the TLD. …
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Evaluation of Polymer Gel Dosimeters For Measurements of Dose and Let In Proton Beams
… gel dosimeters as tools for measuring the dose deposited by and LET of a proton beam. A total of three BANG® dosimeter formulations were evaluated: BANG®-3-Pro-2 BANGkits™ for dose measurement and two BANG®-3 variants, the LET-Baseline and LET-Meter dosimeters, for LET measurement. All …
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Establishment of the Physical and Technical Prerequisites for the Determination of the Relative Biological Effectiveness of Low-energy Monochromatic X-rays
… on the photon energy, biological endpoint and dose range and the consequent large spread of the published data. The superconducting electron linear accelerator of high brilliance and low emittance (ELBE) at the Forschungszentrum Rossendorf with an electron energy up to about 40 MeV is used, …
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Monte Carlo Analysis and Physics Characterization of a Novel Nanoparticle Detector for Medical and Micro-dosimetry Applications
… effects can result from these procedures if the dose to the target is too high or low, and can also result from an incorrect spatial distribution in which nearby normal healthy tissue can be undesirably damaged by poor radiation delivery techniques. Thus, in mice and humans alike, the spatial …
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Optimization of Image Guided Radiation Therapy for Lung Cancer Using Limited-angle Projections
… acquisition enables scan time and imaging dose reduction and improves the mechanical clearance of imaging.</p><p>First of all, the dissertation developed a phase-matched digital tomosynthesis (DTS) technique using limited-angle (<=30 deg) projections for lung tumor localization. This …