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Treatment Plan Delivery Accuracy of the ViewRay System in Two-Headed Mode

Park JM, Park SY, Wu HG, Kim JI

The aim of this study is to investigate the delivery accuracy of intensity-modulated radiation therapy (IMRT) plans in the two-headed mode of the ViewRayâ„¢ system in comparison with that of...
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Secondary Neutron Dose Measurement for Proton Line Scanning Therapy

Lee C, Lee S, Chung K, Han Y, Chung YH, Kim JS

Proton therapy is increasingly being actively used in the treatment of cancer. In contrast to photons, protons have the potential advantage of delivering higher doses to the cancerous tissue and...
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Analysis of Air Discharge and Disused Air Filters in Radioisotope Production Facility

Kim SH, Lee BH, Kwon SI, Kim JS, Kim GS, Park MS, Jung H

When air discharged from a radioisotope production facility is contaminated with radiation, the public may be exposed to radiation. The objective of this study is to manage such radiation exposure....
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Analysis of Trends in Dose through Evaluation of Spatial Dose Rate and Surface Contamination in Radiation-Controlled Area and Personal Exposed Dose of Radiation Worker at the Korea Institute of Radiological and Medical Sciences (KIRAMS)

Lee BH, Kim SH, Kwon SI, Kim JS, Kim GS, Park MS, Park S, Jung H

As the probability of exposure to radiation increases due to an increase in the use of radioisotopes and radiation generators, the importance of a radiation safety management field is being...
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A Study of Institutional Status of Risk Management for Radiotherapy in Foreign Country

Lee SS, Shin DO, Ji YH, Kim DW, An S, Park DW, Cho GS, Kim KB, Koo J, Oh YJ, Choi SH

With the development in field of industry and medicine, new machines and techniques are being launched. Moreover, the complexity of the techniques is associated to an increasing risk of incident....
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Comparative Analysis of Terminology and Classification Related to Risk Management of Radiotherapy

Oh Y, Kim DW, Shin DO, Koo J, Lee SS, Choi SH, Ahn S, Park DW

We analyzed the terminology and classification related to the risk management of radiation treatment overseas to establish the terminology and classification system for Korea. This study investigated the terminology and...
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Optimization of Energy Modulation Filter for Dual Energy CBCT Using Geant4 Monte-Carlo Simulation

Ju EB, Ahn SH, Choi SG, Lee R

Dual energy computed tomography (DECT) is used to classify two materials and quantify the mass density of each material in the human body. An energy modulation filter based DECT could...
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Feasibility Study of Robotics-based Patient Immobilization Device for Real-time Motion Compensation

Chung H, Cho S, Cho B

Intrafractional motion of patients, such as respiratory motion during radiation treatment, is an important issue in image-guided radiotherapy. The accuracy of the radiation treatment decreases as the motion range increases....
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Clinical Implications of High Definition Multileaf Collimator (HDMLC) Dosimetric Leaf Gap (DLG) Variations

Chang KH, Ji Y, Kwak J, Kim SW, Jeong C, Cho B, Park JH, Yoon SM, Ahn SD, Lee SW

This study is to evaluate the dosimetric impact of dosimetric leaf gap (DLG) and transmission factor (TF) at different measurement depths and field sizes for high definition multileaf collimator (HD...
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Improvement of Analytic Reconstruction Algorithms Using a Sinogram Interpolation Method for Sparse-angular Sampling with a Photon-counting Detector

Kim D, Jo B, Park SJ, Kim H, Kim HJ

Sparse angular sampling has been studied recently owing to its potential to decrease the radiation exposure from computed tomography (CT). In this study, we investigated the analytic reconstruction algorithm in...
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