Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Hyun Tae Leem"'
Publikováno v:
Nuclear Engineering and Technology, Vol 55, Iss 2, Pp 655-668 (2023)
In radiography, an antiscatter grid is a well-known device for eliminating unexpected x-ray scatter. We investigate a new stationary grid artifact suppression method based on a nonsubsampled contourlet transform (NSCT) incorporated with Gaussian band
Externí odkaz:
https://doaj.org/article/d4b86c1b10604bda91cc012a0dd8d2a9
Publikováno v:
Nuclear Engineering and Technology, Vol 52, Iss 10, Pp 2339-2345 (2020)
Radiation imaging systems consisting of a large number of channels greatly benefit from multiplexing methods to reduce the number of channels with minimizing the system complexity and development cost. In conventional pixelated radiation detector mod
Externí odkaz:
https://doaj.org/article/b292dc914eea41e095a4ef034ed2c260
Publikováno v:
Nuclear Engineering and Technology, Vol 52, Iss 10, Pp 2339-2345 (2020)
Radiation imaging systems consisting of a large number of channels greatly benefit from multiplexing methods to reduce the number of channels with minimizing the system complexity and development cost. In conventional pixelated radiation detector mod
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 846:18-22
In positron emission tomography (PET) for breast, brain and small animal imaging, the spatial resolution of a PET detector is crucial to obtain high quality PET images. In this study, a PET detector for sub-millimeter spatial resolution imaging purpo
Autor:
Hyun Tae Leem, Jung Yeol Yeom, Yong Choi, Akira Yoshikawa, Kei Kamada, Jin Ho Park, Seiichi Yamamoto, Eva Pratiwi
Publikováno v:
IEEE Transactions on Radiation and Plasma Medical Sciences. 1:30-35
The intrinsic spatial resolution of the detector is an important aspect to reconstruct high quality nuclear medicine images. In order to realize a high spatial resolution, small pixelated Cerium doped Gd3Al2Ga3O12 (Ce:GAGG) scintillators–known for
Autor:
Hyun Tae Leem, Sangwon Lee, Yong Min Huh, Hyeok-jun Choe, Yong Choi, Jin Ho Jung, Kyu Bom Kim, Hwunjae Lee, Jiwoong Jung
Publikováno v:
Physics in medicine and biology. 64(4)
Small animal positron emission tomography (PET) is a noninvasive imaging modality that enables in vivo imaging and quantification of the biological processes of small experimental animals. We have developed a small animal PET that utilizes a high-res
Autor:
Yong Seok Lee, Sang Geon Park, Akira Yoshikawa, Kei Kamada, Seiichi Yamamoto, Jung Yeol Yeom, Yong Choi, Hyun Tae Leem
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 832:63-67
A new Gadolinium Fine Aluminum Gallate (Ce:GFAG) scintillation crystal with both high energy resolution and fast timing properties has successfully been grown. Compared to Gd3Al2Ga3O12 (Ce:GAGG), this new inorganic scintillation crystal has a high lu
Publikováno v:
Medical physics.
PURPOSE The goal of this study was to develop an analog and digital signal processing method using multi-time-over-threshold (MTOT) and field programmable gate arrays (FPGAs) to extract PET event information by using the internal clock of FPGA (~350
Autor:
Sangwon Lee, Yong Choi, Jin Ho Jung, Jiwoong Jung, Kyu Bom Kim, Hyeok-jun Choe, Hyun Tae Leem, Hwunjae Lee, Yong-Min Huh
Publikováno v:
Physics in Medicine & Biology; Feb2019, Vol. 64 Issue 4, p1-1, 1p