Search Results - "Bae, Seungbin"
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Collimators for Gamma Dual Energy CT Arch-Detector: A Simulation Study
Published in Journal of the Korean Physical Society (2020)“…The image resolution of computed tomography (CT) scan system can be affected by numbers of factors such as collimator material, collimator design, stopping…”
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New Virtual Frisch-Grid CdZnTe Detector Design With Sub-Millimeter Spatial Resolution
Published in IEEE transactions on nuclear science (01-10-2014)“…We evaluated the performance of a position-sensitive virtual Frisch-grid (VFG) CdZnTe detector, 6 mm ×6 mm ×15 mm, via sensing strips on its side surfaces…”
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3
Use of virtual Frisch-grid CdZnTe detectors to attain sub-millimeter spatial resolution
Published in 2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC) (01-10-2013)“…The goal of our study was twofold: To determine the distribution of signals in position-sensitive CdZnTe (CZT)-based virtual Frisch-grid detectors (VFGDs) with…”
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Conference Proceeding -
4
Reconstruction of dose distribution in in-beam PET for carbon therapy
Published in 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC) (01-10-2012)“…There are two main artifacts in reconstructed images from in-beam positron emission tomography(PET). Unlike generic PET, in-beam PET uses the annihilation…”
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FPGA-based multichannel data acquisition system for prototype in-beam PET
Published in 2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC) (01-10-2013)“…In-beam positron emission tomography (PET) is a clinically proven imaging technique for the online investigation of position emitters induced by hadron…”
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Conference Proceeding -
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Statistics-based position decoding for a block detector
Published in 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC) (01-10-2012)“…We are developing a block detector to be used in in-beam PET for hardron therapy, which consists of a discrete scintillator array and four round-type PMTs. To…”
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Conference Proceeding -
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Simulation Study on the Effect of Constant Hole Length of Curved Diverging Collimators for Radiation Monitoring Systems
Published in IEEE transactions on nuclear science (01-05-2021)“…The nuclear accident that occurred in Fukushima, Japan, in 2011, resulted in considerable radiation leaks and mass exposure owing to an insufficient initial…”
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Development of organ-specific dual-head single-photon emission computed tomography using variable pinhole collimator
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-01-2021)“…Single-photon emission computed tomography (SPECT) is a nuclear medical imaging method enabling the user to view functional images of patients. The collimator,…”
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Simulation study of a novel target oriented SPECT design using a variable pinhole collimator
Published in Medical physics (Lancaster) (01-02-2017)“…Purpose In the past decade, demands for organ specific (target oriented) single‐photon emission computed tomography (SPECT) is increasing, and several groups…”
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Development of a prototype SPECT system using a variable pinhole collimator
Published in 2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD) (01-10-2016)“…We designed a novel single-photon emission computed tomography (SPECT) system with a variable pinhole (VP) collimator for obtaining high-sensitivity and…”
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Conference Proceeding -
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Geometric Sensitivity of Variable Pinhole SPECT with a Keel-edge Pinhole Model
Published in Journal of the Korean Physical Society (01-02-2019)“…A variable pinhole (VP) collimator is formed by stacking several tungsten plates with different apertures. The configuration of the VP can be optimized for…”
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Precise System Models using Crystal Penetration Error Compensation for Iterative Image Reconstruction of Preclinical Quad-Head PET
Published in Journal of the Korean Physical Society (01-12-2018)“…A-PET is a quad-head PET scanner developed for use in small-animal imaging. The dimensions of its volumetric field of view (FOV) are 46.1 × 46.1 × 46.1 mm 3…”
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Development of Compact Gamma Camera using SoC-FPGA based Modularized DAQ
Published in 2019 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) (01-10-2019)“…Traditional gamma cameras have large volume and heavy weight because of their large photomultiplier tube volume and low spatial resolution. Therefore, gamma…”
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Conference Proceeding -
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Two-level multi-pinhole collimator for SPECT imaging using a small-field-of-view gamma camera
Published in Journal of the Korean Physical Society (2017)“…The aim of this study was to develop a high-throughput imaging method for single-photon emission computed tomography. We developed a target-oriented…”
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Experimental evaluation of a multi-pinhole collimator for a small organ by using a small-field-of-view gamma camera
Published in Journal of the Korean Physical Society (01-02-2017)“…The aim of this study is to design and evaluate a multi-pinhole (MP) collimator for a gamma imaging system that requires a high sensitivity, organ-specific,…”
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Design and performance investigation of a multi-pinhole collimator for a small field of view gamma imaging system
Published in Journal of the Korean Physical Society (01-04-2014)“…The aim of this study is to design a collimator for a gamma imaging system that has a small-footprint, a fast-scan-time, and a organ-specific applicability. To…”
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17
Crystal Area Segmentation for a Scintillation Detector based on Convolutional Neural Network
Published in 2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) (31-10-2020)“…Crystal area segmentation is one of the critical procedures for decoding the detector module coupled with scintillation crystal. However, the blurring effect…”
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Conference Proceeding -
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Data acquisition system for multi channel silicon drift diode-based detector
Published in 2008 IEEE Nuclear Science Symposium Conference Record (01-10-2008)“…We have developed front-end electronics and data acquisition unit for a silicon drift diode (SDD) based prototype detector. The prototype detector consists of…”
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Conference Proceeding -
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Registered collimation for pixellated SPECT detectors
Published in 2008 IEEE Nuclear Science Symposium Conference Record (01-10-2008)“…We investigated a high sensitive collimator (registered collimator) design and associated image reconstruction methods. Its opening was designed to align with…”
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Conference Proceeding