Search Results - "Yeom, Jung‐Yeol"
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Scintillation characteristics of chemically processed Ce:GAGG single crystals
Published in PloS one (07-03-2023)“…We investigated the correlation between the surface finish and luminescence properties of chemically polished cerium-doped single-crystal Gd3Al2Ga3O12…”
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Improvement of phoswich detector-based β+/γ-ray discrimination algorithm with deep learning
Published in Medical physics (Lancaster) (01-10-2023)“…Positron probes can accurately localize malignant tumors by directly detecting positrons emitted from positron-emitting radiopharmaceuticals that accumulate in…”
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Development of a Multiwavelength Visible-Range-Supported Opto⁻Ultrasound Instrument Using a Light-Emitting Diode and Ultrasound Transducer
Published in Sensors (Basel, Switzerland) (03-10-2018)“…A new multiwavelength visible-range-supported opto⁻ultrasound instrument using a light-emitting diode and ultrasound transducer was developed in order to…”
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2-D Array Design and Fabrication With Pitch-Shifting Interposer at Frequencies From 4 MHz up to 10 MHz
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01-12-2022)“…High element density and strict constraints of the element's size have significantly limited the design and fabrication of 2-D ultrasonic arrays, especially…”
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A Review of Inorganic Scintillation Crystals for Extreme Environments
Published in Crystals (Basel) (01-06-2021)“…In the past, the main research and use of scintillators in extreme environments were mainly limited to high energy physics and the well-logging industry, but…”
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Simultaneous Acquisition of Ultrasound and Gamma Signals with a Single-Channel Readout
Published in Sensors (Basel, Switzerland) (04-02-2021)“…We propose an integrated front-end data acquisition circuit for a hybrid ultrasound (US)-gamma probe. The proposed circuit consists of three main parts: (1) a…”
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Power MOSFET Linearizer of a High-Voltage Power Amplifier for High-Frequency Pulse-Echo Instrumentation
Published in Sensors (Basel, Switzerland) (04-04-2017)“…A power MOSFET linearizer is proposed for a high-voltage power amplifier (HVPA) used in high-frequency pulse-echo instrumentation. The power MOSFET linearizer…”
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Development of a Double-Gauss Lens Based Setup for Optoacoustic Applications
Published in Sensors (Basel, Switzerland) (03-03-2017)“…In optoacoustic (photoacoustic) systems, different echo signal intensities such as amplitudes, center frequencies, and bandwidths need to be compensated by…”
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Performance Comparison of CdTe:Na, CdTe:As, and CdTe:P Single Crystals for Solar Cell Applications
Published in Materials (14-02-2022)“…We compared thermal stability, open-circuit voltage, short-circuit current, and fill factor values of single-crystal Cadmium telluride (CdTe) grown using the…”
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Electron‐radiation effect on Freon‐gas‐treated CdTe solar cells
Published in International journal of energy research (01-12-2022)“…Summary In this study, CdTe solar cells were fabricated, with 12%‐13% efficiencies, using CdCl2 dipping and Freon gas treatments and irradiated with a 6‐MeV…”
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Development of high resolution phoswich depth-of-interaction block detectors utilizing Mg co-doped new scintillators
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-12-2017)“…To correct for parallax error in positron emission tomography (PET), phoswich depth-of-interaction (DOI) detector using multiple scintillators with different…”
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12
Radiation resistance and temperature dependence of Ce:GPS scintillation crystal
Published in Radiation physics and chemistry (Oxford, England : 1993) (01-06-2021)“…We investigated the scintillation properties of Ce:GPS (Ce:Gd2Si2O7), Pr:LuAG (Pr:Lu3Al5O12), and LYSO (Lu2(1 − x)Y2xSiO5) scintillators in high-temperature…”
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Investigation of Optical Properties of Ceramic Ce:GAGG by High Temperature Annealing
Published in Journal of the Korean Physical Society (01-12-2019)“…An as-fabricated cerium-doped ceramic scintillator Gd 3 Al 2 Ga 3 O 12 (Ce:GAGG) was thermally annealed at different temperatures. The light output and energy…”
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14
Ultrawide-angle optical system design for light-emitting diode-based ophthalmology and dermatology applications
Published in Technology and health care (01-01-2019)“…Compared to laser, light-emitting diodes - non-coherent and divergent light sources requires that the developed optical system support steering and focusing of…”
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15
A Wideband High-Voltage Power Amplifier Post-Linearizer for Medical Ultrasound Transducers
Published in Applied sciences (04-04-2017)“…The medical ultrasound transducer is a principal component in ultrasound systems, as it significantly influences system performance. The high-voltage power…”
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16
Programmable High Voltage Distribution for Photodetectors in a 1 mm Resolution Clinical PET System
Published in IEEE transactions on nuclear science (01-10-2015)“…We present a scalable, cost-effective, and compact high voltage (HV) distribution design for a system that requires many HV channels for photodetector biasing…”
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Development of an energy and efficiency calibration method for stilbene scintillators
Published in Nuclear engineering and technology (2022)“…A method for calibrating the energy scale and detection efficiency of stilbene scintillators is presented herein. This method can be used to quantitatively…”
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Development of GAGG depth-of-interaction (DOI) block detectors based on pulse shape analysis
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-12-2014)“…A depth-of-interaction (DOI) detector is required for developing a high resolution and high sensitivity PET system. Ce-doped Gd3Al2Ga3O12 (GAGG fast: GAGG-F)…”
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Time-resolved photoluminescence analysis of ceramic Ce:GAGG scintillators
Published in Optics express (09-10-2023)“…This paper introduces the characteristics and efficiency of post-treatment methods for enhancing the timing resolution of ceramic Ce:GAGG scintillators. The…”
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Enhancement of the luminescent and optical properties of ceramic Ce:GAGG after surface treatment with phosphoric acid
Published in Optics express (18-01-2021)“…Surface modification of ceramic Ce-doped Gd Al Ga O (Ce:GAGG) was performed by exposing small samples to anhydrous phosphoric acid (H PO ) under different…”
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