Prof. Kwon-Ha Yoon Profile

Prof. Kwon-Ha Yoon

at Wonkwang Univ

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 7 April 2023 Poster + Paper

Pulse driving of CNT cathode-based electron emitter for multi-x-ray source

Junyoung Park, Amar Prasad Gupta, Kyung-Sik Yoon, Changwon Jeong, Kwon-Ha Yoon, Seungryong Cho, Jeung Sun Ahn, Mallory Mativenga, Jehwang Ryu

Proceedings Volume 12463, 124634N (2023) https://doi.org/10.1117/12.2655849

KEYWORDS: X-rays, X-ray sources, X-ray imaging, Pulse signals

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Proceedings Article | 4 April 2022 Poster + Paper

Development of carbon nanotubes emitter based multi x-ray source array for digital chest tomosynthesis system

Junyoung Park, Amar Prasad Gupta, Kyung-Sik Yoon, Dongkeun Kim, Changwon Jeong, Kwon-Ha Yoon, Seungyong Cho, Jeung Sun Ahn, Seong-Jin Park, Mallory Mativenga, Jehwang Ryu

Proceedings Volume 12031, 1203149 (2022) https://doi.org/10.1117/12.2613618

KEYWORDS: X-ray sources, X-rays, X-ray imaging, Carbon nanotubes, Field effect transistors, Chemical vapor deposition, Switching, Switches, Chest, Sensors

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Proceedings Article | 15 February 2021 Poster + Presentation + Paper

Stationary multi x-ray source system with carbon nanotube emitters for digital tomosynthesis

Junyoung Park, Amar Prasad Gupta, Wooseob Kim, Jongmin Lim, Seungjun Yeo, Dongkeun Kim, Changwon Jeong, Kwon-Ha Yoon, Seungryong Cho, Jeung Sun Ahn, Mallory Mativenga, Jehwang Ryu

Proceedings Volume 11595, 115953G (2021) https://doi.org/10.1117/12.2582280

KEYWORDS: X-ray sources, X-ray imaging, X-rays, Carbon nanotubes, Medical imaging, Image acquisition, Chest, 3D image reconstruction, 3D acquisition, Switching

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Proceedings Article | 16 March 2020 Paper

Multi-beam x-ray sources with carbon nanotube emitter for tomosynthesis system

Junyoung Park, Jaeik Jung, Amar Prasad Gupta, Jeongtae Soh, Changwon Jeong, Jeungsun Ahn, Seungryong Cho, Kwon-Ha Yoon, Dongkeun Kim, Mallory Mativenga, Jehwang Ryu

Proceedings Volume 11312, 113122E (2020) https://doi.org/10.1117/12.2550142

KEYWORDS: X-ray sources, X-rays, X-ray imaging, Chest, 3D image reconstruction, Carbon nanotubes, Sensors, Medical research, 3D image processing, Digital imaging

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SPIE Journal Paper | 1 January 2008

Fabrication of a soft x-ray microscope mirror using an epoxy replication method

Kwon Su Chon, Yoshiharu Namba, Kyong-Woo Kim, Sunghoon Kang, Kwon-Ha Yoon

OE, Vol. 47, Issue 01, 013401, (January 2008) https://doi.org/10.1117/12.10.1117/1.2829608

KEYWORDS: Mirrors, Surface roughness, X-rays, Epoxies, Microscopes, Gold, Polishing, Surface finishing, Single point diamond turning, Tolerancing

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Proceedings Article | 17 September 2005 Paper

Development of the micro-CT system for small animal

K. Nam, J. Lim, Y. Jung, K. Kim, J. Park, K. Yoon

Proceedings Volume 5923, 59230U (2005) https://doi.org/10.1117/12.626447

KEYWORDS: Imaging systems, Spatial resolution, X-ray computed tomography, X-rays, Image resolution, Sensors, X-ray sources, Charge-coupled devices, CCD image sensors, Modulation transfer functions

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Proceedings Article | 10 September 2005 Paper

Nano-positioning control of 5-DOF manipulator for alignment of condenser in soft x-ray microscopy system

Kyu Gyeom Kim, Jae Hee Kim, Jong Hwan Min, Kyong Woo Kim, Young Man Kwon, Jin Young Min, Kwon Ha Yoon

Proceedings Volume 5918, 59181A (2005) https://doi.org/10.1117/12.626316

KEYWORDS: X-ray optics, Mirrors, X-rays, Kinematics, X-ray microscopy, X-ray sources, Microscopes, Reflectivity, Interferometers, Control systems

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Proceedings Article | 31 August 2005 Paper

Development of compact soft x-ray microscopy using a laser-produced plasma source

K. W. Kim, Y. M. Kwon, K. Y. Nam, J. H. Lim, K. G. Kim, J. Y. Min, K. H. Yoon

Proceedings Volume 5918, 59181C (2005) https://doi.org/10.1117/12.626312

KEYWORDS: X-rays, Microscopes, Plasma, X-ray microscopy, X-ray imaging, X-ray optics, Mirrors, Zone plates, Charge-coupled devices, Sensors

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Proceedings Article | 31 August 2005 Paper

Development of laser plasma-based soft x-ray microscopy

Jong-Hyeok Lim, Ki-Yong Nam, Kyong-Woo Kim, Young-Man Kwon, Jeon-Goun Park, Jong Hwan Min, Hyun-Hwa Son, Jin-Young Min, Kwon-Ha Yoon

Proceedings Volume 5918, 59181B (2005) https://doi.org/10.1117/12.626319

KEYWORDS: Mirrors, X-rays, Microscopes, X-ray sources, Sensors, X-ray microscopy, Imaging systems, Laser development, Gold, Nd:YAG lasers

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Showing 5 of 9 publications

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