Radiation Measurement Lab
Journal paper
2023
J Boo, MD Hammig, M Jeong
Nuclear Engineering and Technology 55 (2), 648-654
40. Comparative study of the pulse shape discrimination (PSD) performance of pixelated stilbene and plastic scintillator (EJ-276) arrays for a coded-aperture-based hand-held dual …
J Boo, M Jeong
Nuclear Engineering and Technology 55 (5), 1677-1686
2022
S Hyeon, M Hammig, M Jeong
Nuclear Engineering and Technology 54 (5), 1760-1768
37. Comparison of Characteristics of Gamma-Ray Imager Based on Coded Aperture by Varying the Thickness of the BGO Scintillator
S Park, MD Hammig, M Jeong
Journal of Radiation Protection and Research
38. Passive Gamma-Ray Detection With Compact Lightweight Imager for Nuclear Safeguards
J Boo, MD Hammig, M Jeong
IEEE Transactions on Nuclear Science 69 (6), 1336-1343
2021
35. Row–Column Readout Method to Mitigate Radiographic-Image Blurring From Multipixel Events in a Coded-Aperture Imaging System
J Boo, MD Hammig, M Jeong
IEEE Transactions on Nuclear Science 68 (5), 1175-1183
(a) The MURA pattern (rank 11, centered mosaicked by 2 × 2) and (b) the CAI geometry of actual dimension used in the simulation.
(a) The MURA pattern (rank 11, centered mosaicked by 2 × 2) and (b) the CAI geometry of actual dimension used in the simulation.
34. MCNP-polimi simulation for the compressed-sensing based reconstruction in a coded-aperture imaging CAI extended to partially-coded field-of-view
M Jeong, G Kim
Nuclear Engineering and Technology 53 (1), 199-207
Hardware configuration for driving a SiPM-based pixelated stilbene array in which each of the electronic components is identified as well as the coupling to the stilbene and SiPM.
Hardware configuration for driving a SiPM-based pixelated stilbene array in which each of the electronic components is identified as well as the coupling to the stilbene and SiPM.
33. Compact lightweight imager of both gamma rays and neutrons based on a pixelated stilbene scintillator coupled to a silicon photomultiplier array
J Boo, MD Hammig, M Jeong
Scientific Reports 11 (1), 1-14
32. Impact of aperture-thickness on the real-time imaging characteristics of coded-aperture gamma cameras
S Park, J Boo, M Hammig, M Jeong
Nuclear Engineering and Technology
2020
Photographs of: (a) CSAs placed on 3 different kinds of substrate material and (b) the evaluation board for testing characteristics of CSAs.
Photographs of: (a) CSAs placed on 3 different kinds of substrate material and (b) the evaluation board for testing characteristics of CSAs.
31. Development of charge sensitive amplifiers based on various circuit board substrates and evaluation of radiation hardness characteristics
M Jeong, G Kim
Nuclear Engineering and Technology 52 (7), 1503-1510
System components for testing a GAGG(Ce) scintillator array coupled with a large area SiPM (left) and its assembly (right) with data acquisition system composed of: (1) a front-end circuit, (2) charge division circuits, and (3) a Raspberry Pi 4 board.
System components for testing a GAGG(Ce) scintillator array coupled with a large area SiPM (left) and its assembly (right) with data acquisition system composed of: (1) a front-end circuit, (2) charge division circuits, and (3) a Raspberry Pi 4 board.
30. Development of hand-held coded-aperture gamma ray imaging system based on GAGG (Ce) scintillator coupled with SiPM array
M Jeong, M Hammig
Nuclear Engineering and Technology
Schematic illustration for the calculation of a system matrix for CAI. Here the source plane and detector are assumed to consist of ideal points for computational simplicity and straight rays are cast from each source point to the detector points to calculate the intersection lengths by following the path of each ray through the mask.
Schematic illustration for the calculation of a system matrix for CAI. Here the source plane and detector are assumed to consist of ideal points for computational simplicity and straight rays are cast from each source point to the detector points to calculate the intersection lengths by following the path of each ray through the mask.
29. Comparison of gamma ray localization using system matrixes obtained by either MCNP simulations or ray-driven calculations for a coded-aperture imaging system
M Jeong, MD Hammig
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …
2018
Optical photograph of 12 × 12 SiPM pixel array (left) and 4 × 4 × 20 mm3 pixelated CsI(Tl) scintillator crystal (right).
Optical photograph of 12 × 12 SiPM pixel array (left) and 4 × 4 × 20 mm3 pixelated CsI(Tl) scintillator crystal (right).
28. Scalable gamma-ray camera for wide-area search based on silicon photomultipliers array
M Jeong, B Van, BT Wells, LJ D’Aries, MD Hammig
Review of Scientific Instruments 89 (3), 033106
Photograph of inorganic scintillators under study: (a) 4×4×20 mm^3 CsI(Tl), (b) 3×3×20 mm^3 CsI(Tl), (c) 2×2×5 mm^3 LaCl_3(Ce), (d) 4×4×10 mm^3 LYSO(Ce), and (e) 4×4×5 mm^3 LYSO(Ce). And (f) back and (g) sideview of the SiPM coupled to a scintillation crystal.
Photograph of inorganic scintillators under study: (a) 4×4×20 mm^3 CsI(Tl), (b) 3×3×20 mm^3 CsI(Tl), (c) 2×2×5 mm^3 LaCl_3(Ce), (d) 4×4×10 mm^3 LYSO(Ce), and (e) 4×4×5 mm^3 LYSO(Ce). And (f) back and (g) sideview of the SiPM coupled to a scintillation crystal.
27. Comparison between Pixelated Scintillators: CsI (Tl), LaCl 3 (Ce) and LYSO (Ce) when coupled to a Silicon Photomultipliers Array
M Jeong, B Van, BT Wells, JD Lawrence, MD Hammig
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …
2016
(a) Single crystalline 1-inch TlBr ingot used in the study, (b) a diced and polished TlBr sample.
(a) Single crystalline 1-inch TlBr ingot used in the study, (b) a diced and polished TlBr sample.
26. Characteristics of TlBr single crystals grown using the vertical Bridgman-Stockbarger method for semiconductor-based radiation detector applications
DJ Kim, JH Oh, HS Kim, YS Kim, M Jeong, CG Kang, WJ Jo, H Choi, ...
Materials Science-Poland 34 (2), 297-301
(a) Two sets of CZT radiation sensor bonded with adapter board. The indium ball and silver paste were used for bonding between CZT crystal and adapter board. (b) side view of CZT radiation sensor board. The indium balls which used for bonding between each pixel and adapter board can be identified.
(a) Two sets of CZT radiation sensor bonded with adapter board. The indium ball and silver paste were used for bonding between CZT crystal and adapter board. (b) side view of CZT radiation sensor board. The indium balls which used for bonding between each pixel and adapter board can be identified.
25. Preliminary Research of CZT based PET system development in KAERI
WJ Jo, M Jeong, HS Kim, SY Kim, JH Ha
Journal of Radiation Protection and Research 41 (2), 81-86
2015
Cross-section view of 10×10 mm^2 Si-PIN radiation detector.
Cross-section view of 10×10 mm^2 Si-PIN radiation detector.
24. Radiation hardness characteristics of Si-PIN radiation detectors
M Jeong, WJ Jo, HS Kim, JH Ha
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …
23. Growth and fabrication method of CdTe and its performance as a radiation detector
H Choi, M Jeong, HS Kim, YS Kim, JH Ha, JS Chai
Journal of the Korean Physical Society 66 (1), 27-30
Schematic of the designed Si PIN photodiode radiation detector. A double guard electrode, an edge protection structure, and N-channel stop structures were incorporated to minimize leakage currents and to apply high bias voltages.
Schematic of the designed Si PIN photodiode radiation detector. A double guard electrode, an edge protection structure, and N-channel stop structures were incorporated to minimize leakage currents and to apply high bias voltages.
22. Characteristics of fabricated si PIN-type radiation detectors on cooling temperature
HS Kim, M Jeong, YS Kim, DH Lee, SY Cho, JH Ha
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …
21. Optimization of shielding electrode lengths of virtual Frisch-grid CdZnTe radiation detector for gamma-ray detection
WJ Jo, HS Kim, JH Ha, M Jeong
Current Applied Physics 15, S51-S56
20. Material analysis of the CZT crystal grown for a radiation detector
HS Kim, M Jeong, YS Kim, DJ Kim, HJ Choi
Journal of the Korean Physical Society 66 (1), 37-40
19. Characteristics of a Frisch collar grid CdZnTe radiation detector grown by low-pressure Bridgman method
M Jeong, WJ Jo, HS Kim, JH Ha
Journal of the Korean Physical Society 66 (11), 1669-1674
18. Development of high-resolution silicon-based particle sensor with integrated amplification
G Kim, T Kang, S Ramadoss, M Jeong, MD Hammig
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …
17. Development of a multi-purpose and high space resolution imaging system to detect secondary characteristic X-rays
M Jeong, HS Kim, JH Ha, YS Kim, H Choi, DJ Kim, WJ Jo
Korea Atomic Energy Research Institute
16. Development of High Performance Radiation Imaging System
J Ha, Y Kim, H Kim, M Jeong, J Oh, S Yeo, H Choi, W Jo, D Kim, H Cha
Korea Atomic Energy Research Institute
2014
15. Microstrip Transmission-Line Electrodes for Position Sensitive Radiation Detection
M Jeong, MD Hammig
IEEE Transactions on Nuclear Science 61 (6), 3682-3689
14. Characteristics of a planar-type Cd0.9Zn0.1Te radiation detector grown by using the low-pressure bridgman method
M Jeong, HS Kim, YS Kim, JH Ha
Journal of the Korean Physical Society 64 (8), 1105-1109
13. Effect of temperature on silicon PIN photodiode radiation detectors
HS Kim, M Jeong, YS Kim, JH Ha, SY Cho
Journal of the Korean Physical Society 64 (5), 651-654
2013
12. Suppression of interface-induced noise by the control of electron-phonon interactions
MD Hammig, T Kang, M Jeong, M Jarrett
IEEE Transactions on Nuclear Science 60 (4), 2831-2839
2011
11. Optimizing the SNR from a radiation detector with delay-line position-sensing electrodes
M Jeong, MD Hammig, S Ramadoss
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …
10. Evaluation of dual γ-ray imager with active collimator using various types of scintillators
W Lee, T Lee, M Jeong, HK Kim
Applied Radiation and Isotopes 69 (10), 1560-1567
9. Fabrication methods by which the intrinsic noise is reduced in Si and CZT nuclear radiation detectors
MD Hammig, M Jeong
2011 IEEE Nuclear Science Symposium Conference Record, 356-362
2009
8. A Dual Modality Gamma Camera Using LaCl3(Ce) Scintillator
W Lee, DK Wehe, M Jeong, P Barton, J Berry
IEEE Transactions on Nuclear Science 56 (1), 308-315
7. The atomistic simulation of thermal diffusion and Coulomb drift in semiconductor detectors
M Jeong, MD Hammig
IEEE Transactions on Nuclear Science 56 (3), 1364-1371
6. Fabrication and signal readout of the Si-based delay-line radiation detector
M Jeong, S Ramadoss, MD Hammig
2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC), 1666-1673
2008
5. Delay-line electrode partitioning as a means of simplified position-sensing
MD Hammig, M Jeong, DK Wehe, S Ramadoss
2008 IEEE Nuclear Science Symposium Conference Record, 2493-2500
2007
4. Optimization of the position resolution in semiconductor detectors
M Jeong, DA Lawlor, MD Hammig
2007 IEEE Nuclear Science Symposium Conference Record 2, 1456-1462
2005
3. Development of a portable digital radiographic system based on FOP-coupled CMOS image sensor and its performance evaluation
HS Cho, MH Jeong, BS Han, S Kim, BS Lee, HK Kim, SC Lee
IEEE transactions on nuclear science 52 (5), 1766-1772
2. Development of a Monte Carlo simulation code and its test results for optimal design of a digital radiographic system based on a CMOS image sensor
H Cho, M Jeong, B Han, S Kim, B Lee, B Park
Journal of the Korean Physical Society 46 (2), 418
1. Development of a digital X-ray imaging module for portable high-resolution imaging applications
H Cho, M Jeong, S Kim, B Lee
Journal of the Korean Physical Society 46 (5), 1096