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Characteristics of CCD Based Optical CT Scanner for Therapeutic Radiation Dosimetry

Lee JC, Kim AR, Ji YH, Kwon SI

A CCD camera and an LED light source were combined to fabricate a compact optical CT scanner for the therapeutic radiation dose evaluation of a polymer gel dosimeter. After the...
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Modulation Transfer Function with Aluminum Sheets of Varying Thickness

Rhee DJ, Kim MY, Moon YM, Jeong DH

We studied the method to gain a clear LSF using a thick aluminum sheet and to acquire the spatial resolution value with a high accuracy for a low spatial resolution...
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The Dose Attenuation according to the Gantry Angle and the Photon Energy Using the Standard Exact Couch and the 6D Robotic Couch

Kim TH, Oh SA, Yea JW, Park JW, Kim SK

The objective of this study is to increase the accuracy of dose transmission in radiation therapy using two types of treatment tables, standard exact couch (Varian 21EX, Varian Medical Systems,...
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Changes of Optically Stimulated Luminescence Dosimeter Sensitivity with High Dose

Han SC, Kim KB, Choi SH, Park S, Jung H, Ji YH

We investigated the effect of high dose on the sensitivity of optically stimulated luminance dosimeters (OSLDs) on Co-60 gamma rays and used a commercial OLSD (Landauer, Inc., Glenwood, IL). New...
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Impact of Respiratory Motion on Breast Cancer Intensity-modulated Radiation Therapy

Chung WK, Chung M, Shin DO, Kim DW

In this study, we evaluate the effect of respiration on the dose distribution in patient target volume (PTV) during intensity-modulated radiation therapy (IMRT) and research methods to reduce this impact....
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Efficacy and Accuracy of Patient Specific Customize Bolus Using a 3-Dimensional Printer for Electron Beam Therapy

Choi WK, Chun JC, Ju SG, Min BJ, Park SY, Nam HR, Hong CS, Kim M, Koo BY, Lim DH

We develop a manufacture procedure for the production of a patient specific customized bolus (PSCB) using a 3D printer (3DP). The dosimetric accuracy of the 3D-PSCB is evaluated for electron...
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Image-based Absorbed Dosimetry of Radioisotope

Park YS, Lee YJ, Kim W, Ji YH, Kim KB, Kang JH, Lim SM, Woo SK

An absorbed dose calculation method using a digital phantom is implemented in normal organs. This method cannot be employed for calculating the absorbed dose of tumor. In this study, we...
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