Notice

  1. P.G. Jung, C.H. Lee, K.M. Bae, J.M. Lee, S.M. Lee, C.H. Lim, S. Yun, H.K. Kim, and J.S. Ko†, “Microdome-gooved Gd2O2S:Tb scintillator for flexible and high resolution digital radiography”, Optics Express, 18(4), 14850-14858, 2010. Selected by the editor-in-chief, Gregory Faris, for publication in the Virtual Journal for Biomedical Optics (VJBO) http://vjbo.osa.org/virtual_issue.cfm

  2. H.K. Kim†, M.K. Cho, T. Achterkirchen, and W. Lee, "Radiation effects on the performance of CMOS photodiode array detectors and the role of gain-offset corrections," IEEE Trans. Nucl. Sci., 56(3), 1179-1183, 2009.

  3. S. Yun, H.K. Kim†, C.H. Lim, M.K. Cho, T. Achterkirchen, and I. Cunningham, "Signal and noise characteristics induced by unattenuated x rays from a scintillator in indirect-conversion CMOS photodiode array detectors," IEEE Trans. Nucl. Sci., 56(3), 1121-1128, 2009.

  4. H.K. Kim†, S. Yun, J.C. Han, H. Youn, M.K. Cho, C.H. Lim, S.K. Heo, C.-S. Shon, S.-S. Kim, B.H. Cho, and T.G. Achterkirchen, "Performance characterization of microtomography with complementary metal-oxide-semiconductor detectors for computer-aided defect inspection," J. Appl. Phys., vol. 105, no. 9, 094701, May 2009.

  5. I.D. Jung, M.K. Cho, S.M. Lee, K.M. Bae, P.G. Jung, C.H. Lee, J.M. Lee, S. Yun, H.K. Kim, S.S. Kim, and J.S. Ko, "Flexible Gd2O2S:Tb scintillator pixelated with polyethylene microstructures for digital x-ray image sensors," J. Micromech. Microeng., 19(1), 015014, 2009. Selected to be part of Journal of Micromechanics and Microengineering Highlights of 2009 collection. http://herald.iop.org/JMM/m50/jip/Highlights09/link/3488

  6. I.D. Jung, M.K. Cho, K.M. Bae, S.M. Lee, P.G. Jung, H.K. Kim, S.S. Kim, and J.S. Ko, "Pixel-structured scintillator with polymeric microstructures for x-ray image sensors," ETRI J., 30(5), 747-749, 2008.

  7. H.K. Kim†, I.A. Cunningham, Z. Yin, and G. Cho, "On the development of digital radiography detectors: A review," Int. J. Precis. Eng. Manuf., 9(4), 86-100, 2008.

  8. H.K. Kim†, S.M. Yun, J.S. Ko, G. Cho, and T. Graeve, "Cascade modeling of pixelated scintillator detectors for x-ray imaging," IEEE Trans. Nucl. Sci., 55(3), 1357-1366, 2008.

  9. M.K. Cho, H.K. Kim†, T. Graeve, S.M. Yun, C.H. Lim, H. Cho, and J.-M. Kim, "Measurements of x-ray imaging performance of granular phosphors with direct-coupled CMOS sensors," IEEE Trans. Nucl. Sci., 55(3), 1338-1343, 2008.

  10. H. Cho, S. Choi, Y. Koo, T. Kim, C. Ro, B. Lee, S. Kim, and H. Kim, "Performance evaluation of a digital intraoral imaging device based on the CMOS photosensor array coupled with an integrated x-ray conversion fiber-optic faceplate," Nucl. Instrum. Meth. A, 579(1), 330-333, 2007.

  11. H.K. Kim, "Generalized cascaded model to assess noise transfer in scintillator-based x-ray imaging detectors," Appl. Phys. Lett., 89(23), 233504-1-233504-3, 2006.

  12. C.-S. Shon, H.K. Kim†, M.K. Cho, M.H. Cheong, C.H. Lim, and J.-M. Kim, "Computational toolset for x-ray spectral analysis," Key Eng. Mater., 321-323, 1060-1065, 2006.

  13. J.-M. Kim, H.K. Kim†, M.H. Cheong, M.K. Cho, C.-S. Shon, and C.H. Lim, "Investigation of scintillation screens for x-ray imaging," Key Eng. Mater., 321-323, 1056-1059, 2006.

  14. M.K. Cho, H.K. Kim†, T. Graeve, and J.-M. Kim, "Characterization of CMOS pixel detectors for digital x-ray imaging," Key Eng. Mater., 321-323, 1052-1055, 2006.

  15. H. Cho, S. Choi, H. Kim, B. Lee, and S. Kim, "Gas electron multipliers for potential applications to digital radiography," Key Eng. Mater., 321-323, 125-128, 2006.

  16. H.K. Kim, "Analytical model for incomplete signal generation in semiconductor detectors," Appl. Phys. Lett., 88(13), 132112-1-132112-3, 2006.

  17. H.K. Kim†, M.K. Cho, S.K. Ahn, G. Cho, and H. Cho, "Electrical investigation of LIGA-processed gas electron multipliers," J. Kor. Phys. Soc., 48(1), 40-46, 2006.

  18. H.S. Cho, M.H. Jeong, B.S. Han, S. Kim, B.S. Lee, H.K. Kim, and S.C. Lee, "Development of a portable digital radiographic system based on FOP-coupled CMOS image sensor and its performance evaluation," IEEE Trans. Nucl. Sci., 52(5), 1766-1772, 2005.

  19. H.K. Kim†, J.K. Ahn, and G. Cho, "Development of a lens-coupled CMOS detector for an x-ray inspection system," Nucl. Instrum. Meth. A, 545(1-2), 210-216, 2005. [11 June 2005] Erratum, Nucl. Instrum. Meth. A, 551(2-3), 575, 2005. [11 October 2005]

  20. H.K. Kim, S.C. Lee, M.H. Cho, S.Y. Lee, and G. Cho, "Use of a flat-panel detector for microtomography: A feasibility study for small-animal imaging," IEEE Trans. Nucl. Sci., 52(1), 193-198, 2005.

  21. Y.K. Kim, H.K. Kim, G. Cho, and D.K. Kim, "Effect of yttria substitution on the light output of (Gd,Y)2O3:Eu ceramic scintillator," Nucl. Instrum. Meth. B, 225(3), 392-396, 2004. [September 2004]

  22. S.C. Lee, H.K. Kim, I.K. Chun, M.H. Cho, M.H. Cho, and S.Y. Lee, "Development and characterization of a flat-panel detector-based microtomography system," Key Eng. Mater., 270-273, 245-251, 2004.

  23. Y.K. Kim, H.K. Kim, D.K. Kim, and G. Cho, "Synthesis of Eu-doped (Gd,Y)2O3 transparent optical ceramic scintillator," J. Mater. Res., 19(2), 413-416, 2004. [February 2004]

  24. S.C. Lee, H.K. Kim, I.K. Chun, M.H. Cho, S.Y. Lee, and M.H. Cho, "A flat-panel detector based micro-CT system: Performance evaluation for small-animal imaging," Phys. Med. Biol., 48(24), 4173-4185, 2003. [5 December 2003]

  25. H.J. Kim, H.K. Kim, G. Cho, and J. Choi, "Construction and characterization of an amorphous silicon flat-panel detector based on ion-shower doping process," Nucl. Instrum. Meth. A, 505(1-2), 155-158, 2003. [1 June 2003]

  26. H. Cho, H. Yoon, S. Han, and H. Kim, "Operating characteristics of open and closed-end gas electron multipliers," J. Kor. Phys. Soc., 42(1), 56-59, 2003. [January 2003]

  27. H.K. Kim, G. Cho, D.K. Kim, and H. Cho, "Gas electron multiplier made by deep-etch x-ray lithography," J. Kor. Phys. Soc., 40(5), 812-819, 2002. [May 2002]

  28. H.K. Kim, G. Cho, and H. Cho, "Performance of microdot detectors for 50-, 100-, and 200-μm pitches based on the amorphous silicon process," J. Kor. Phys. Soc., 39(2), 218-224, 2001. [August 2001]

  29. S.W. Lee, H.K. Kim, G. Cho, Y.H. Shin, and Y.Y. Won, "A 3-D x-ray microtomographic system with a CMOS image sensor," IEEE Trans. Nucl. Sci., 48(4), 1503-1505, 2001. [August 2001]

  30. G. Cho, H.K. Kim, Y.H. Chung, D.K. Kim, H.K. Lee, T.S. Suh, and K.S. Joo, "Monte Carlo analyses of x-ray absorption, noise, and detective quantum efficiency considering therapeutic x-ray spectrum in portal imaging detector," IEEE Trans. Nucl. Sci., 48(4), 1423-1427, 2001. [August 2001]

  31. H.K. Kim, G. Cho, S.W. Lee, Y.H. Shin, and H.S. Cho, "Development and evaluation of a digital radiographic system based on CMOS image sensor," IEEE Trans. Nucl. Sci., 48(3), 662-666, 2001. [June 2001]

  32. I.J. Park, J.G. Kim, H.K. Kim, W.S. Hong, S.H. Han, V. Perez-Mendez, J. Kadyk, W. Wenzel, and K.S. Joo, "Columnar cesium iodide (CsI) and micro-hole arrays for use in gas avalanche detectors," IEEE Trans. Nucl. Sci., 47(6), 1820-1824, 2000. [December 2000]

  33. S.H. Han, W.S. Hong, H.K. Kim, J.G. Kim, I.J. Park, J. Kadyk, W. Wenzel, and V. Perez-Mendez, "Insensitive zones and space resolution of microdot (MDOT) detectors of 50, 100 and 200 micron pitch," IEEE Trans. Nucl. Sci., 47(4), 1416-1420, 2000. [August 2000]

  34. H.K. Kim, K. Jackson, W.S. Hong, I.J. Park, S.H. Han, J. Kadyk, V. Perez-Mendez, W. Wenzel, and G. Cho, "Application of the LIGA process for fabrication of gas avalanche devices," IEEE Trans. Nucl. Sci., 47(3), 923-927, 2000. [June 2000]

  35. H.K. Kim, G. Cho, Y.H. Chung, H.K. Lee, and S.C. Yoon, "Monte Carlo studies of metal/phosphor screen in therapeutic x-ray imaging," Nucl. Instrum. Meth. A, 422(1-3), 713-717, 1999. [11 February 1999]

  36. G. Cho, H.K. Kim, H. Woo, G. Oh, and D.K. Ha, "Electronic dose conversion technique using a NaI(Tl) detector for assessment of exposure dose rate from environmental radiation," IEEE Trans. Nucl. Sci., 45(3), 981-985, 1998. [June 1998]

  1. C.H. Lim, M.K. Cho, J.C. Han, H. Youn, S. Yun, C.-S. Shon, and H.K. Kim†, "Development of an MCNP-based cone-beam CT simulator," J. Kor. Soc. Nondestructive Testing, 29(4), 368-376, 2009. [August 2009].

  2. H. Youn, S. Yun, J.C. Han, M.K. Cho, C.H. Lim, S.K. Heo, C.-S. Shon, S.-S. Kim, S.-H. Lee, S. Lee, and H.K. Kim†, "Development of a graphical solution for computer-assisted fault diagnosis: Preliminary study," J. Kor. Soc. Nondestructive Testing, 29(1), 36-42, 2009. [February 2009].

  3. J.S. Kim, M.K. Cho, Y.-B. Cho, H. Youn, H.K. Kim†, M. Yoon, D. Shin, S. Lee, R.-N. Lee, S.Y. Park†, and K.H. Cho, "Geometric calibration of cone-beam CT system for image guided proton therapy," Kor. J. Med. Phys., 19(4), 209-218, 2008. [2008]

  4. C.-J. Park, D.-I Kim, D.-Y. Jang, H.B. Yoon, B.-Y. Choe, H.K. Kim†, and H.K. Lee†, "Contrast enhancement for x-ray images based on combined enhancement of scaling and wavelet coefficients," Kor. J. Med. Phys., 19(3), 150-156, 2008. [2008]

  5. M.K. Cho, H.K. Kim†, Z. Yin, and T.W. Kim, "Backprojection filtering method for limited angle tomography," J. Biomed. Eng. Res., 29(1), 46-51, 2008. [February 2008]

  6. Z. Yin and H.K. Kim, "Computed tomography systems in medicine: Past, present and future," J. Kor. Soc. Precis. Eng., 25(1), 35-42, 2008. [February 2008, Invited to Special Articles]

  7. H.K. Kim† and S.M. Yun, "Linear-systems transfer theory for analyzing performance of medical imaging systems," J. Kor. Soc. Precis. Eng., 25(1), 11-21, 2008. [February 2008, Invited to Special Articles]

  8. H.K. Kim†, M.K. Cho, and T. Graeve, "Investigation of radiation effects on the signal and noise characteristics in digital radiography," J. Biomed. Eng. Res., 28(6), 756-767, 2007. [December 2007]

  9. C.-S. Shon, M.K. Cho, C.H. Lim, M.H. Cheong, H.K. Kim†, and S.S. Lee, "Enhancement of image sharpness in x-ray digital tomosynthesis," J. Kor. Soc. Nondestructive Testing, 27(1), 8-14, 2007. [February 2007]

  10. H.K. Kim, "Sensor technology for digital radiography," J. Kor. Soc. Precis. Eng., 22(8), 7-16, 2005. [August 2005, Invited to Special Articles]

  11. H.K. Kim†, M.K. Cho, M.H. Cheong, C.-S. Shon, S.J. Hwang, J.S. Ko, and H. Cho, "Calculation of primary electron collection efficiency in gas electron multipliers based on 3D finite element analysis," J. Kor. Assoc. Radiat. Protec., 30(2), 69-75, 2005. [June 2005]

  12. H.K. Kim, "Cone-beam microtomography and its application," J. Kor. Soc. Precis. Eng., 22(3), 7-14, 2005. [March 2005, Invited to Special Articles]

  13. M.H. Jeong, I.B. Jeong, J.H. Park, J.E. Oh, H.S. Cho, B.S. Han, S. Kim, B.S. Lee, and H.K. Kim, "Evaluation of image qualities for a digital x-ray imaging system based on Gd2O2S(Tb) scintillator and photosensor array by using a Monte Carlo imaging simulation code," J. Biomed. Eng. Res., 25(4), 253-259, 2004. [August 2004]

  14. S.C. Lee, H.K. Kim, I.K. Chun, M.H. Cho, M.H. Cho, and S.Y. Lee, "Development of a micro-CT system for small animal imaging," J. Biomed. Eng. Res., 25(2), 97-102, 2004. [April 2004]

  15. S.W. Kwak, Y.S. Yeom, H.K. Kim, G. Cho, J.W. Park, C.L. Kim, and M.J. Song, "Development of effective γ-ray and β-ray detection methods for low-level radioactive wastes," J. Kor. Assoc. Radiat. Protec., 26(4), 393-398, 2001. [September 2001]

  16. Y.H. Chung, H.K. Kim, G. Cho, S.K. Ahn, H.K. Lee, and S.C. Yoon, "Characterization of x-ray detector for CCD-based electronic portal imaging device," J. Biomed. Eng. Res., 21(2), 119-127, 2000. [April 2000]

  17. H.K. Kim and G. Cho, "Signal generation due to alpha particle in hydrogenated amorphous silicon radiaton detectors," J. Kor. Nucl. Soc., 28(4), 397-405, 1996. [August 1996]

  1. H. Youn, J.C. Han, M.K. Cho, S.Y. Jang, H.K. Kim†, “Numerical generation of digital mammograms considering imaging characteristics of an imager”, Symposium on Radiation Measurements and Applications, May 24-28, Michigan, USA, 2010.

  2. S. Yun, H.K. Kim†, I. Cunningham, “Finding the best photoconductor for digital mammography detectors”, Symposium on Radiation Measurements and Applications, May 24-28, Michigan, USA, 2010.

  3. C.H. Lim, S. Yun, H.K. Kim†, M. Farrier, T. Achterkirchen, M. McDonald, and I. Cunningham, “Imaging characterization of large area CMOS photodiode arrays for mammography”, Symposium on Radiation Measurements and Applications, May 24-28, Michigan, USA, 2010.

  4. J. Tanguay, H.K. Kim, I.A. Cunningham, "Noise in energy-discriminating photon-counting x-ray imaging detectors," Proc. SPIE, 7622, 762219, 2010.

  5. H. Youn, J.Y. Kim, S.Y. Jang, M.K. Cho, S. Cho, H.K. Kim†, “Deblurring in digital tomosynthesis by iterative self-layer subtraction” Proc. SPIE, 7622, 76225J, 2010.

  6. M.K. Cho, J. Shin, H.K. Kim, M. Yoon, D Shin, S.B. Lee, and S.Y. Park†, “Feasibility of proton tomosynthesis system in proton therapy”, Proc. SPIE, 7622, 762204, 2010.

  7. J.C. Han, S. Yun, C.H. Lim, T.G. Youm, S.K. Heo, T.W. Kim, I. Cunningham, H.K. Kim†, “An aging study of the signal and noise characteristics in large-area CMOS detectors”, Proc. SPIE, 7622, 76223Y, 2010.

  8. C.H. Lim, O. Joe, I. Cunningham, H.K. Kim†, “Modeling of pulse signals in photon-counting detectors”, Proc. SPIE, 7622, 76223U, 2010.

  9. S. Yun, C.H. Lim, T.W. Kim, I. Cunningham, T. Achterkirchen, H.K. Kim†, “Phosphor-filled micro-well arrays for digital x-ray imaging: effects of surface treatments”, Proc. SPIE, 7622, 776223S, 2010.

  10. S.K. Heo, S.K. Park, S.H. Hwang, D.A. Im, J. Kosonen, T.W. Kim, S. Yun, H.K. Kim†, "Development of a large-area CMOS-based detector for real-time x-ray imaging”, Proc. SPIE, 7622, 76223T, 2010.

  11. M.K. Cho, S.Y. Park, and H.K. Kim†, "On-board cone-beam digital tomosynthesis for image-guided proton therapy”, IEEE Nuclear Science Symposium and Medical Imaging Conference, Orlando, USA, 25-31 October 2009.

  12. C.H. Lim, H.K. Kim†, I. Cunningham, T. Achterkirchen, “ X-ray absorption-induced noise in scintillator-based imaging detectors”, The Tenth International Conference on Inorganic Scintillators and their Application, June 8-12 Jeju, Korea, 2009.

  13. M.K. Cho, H. Youn, and H.K. Kim†, "Iterative self-layer subtractive digital tomosynthesis for industrial non-destructive evaluation”, The Fifth International Symposium on Radiation Safety and Detection Technology, July 15-17 Japan, 2009.

  14. H. Youn, H.K. Kim†, C.H. Lim, J.Y. Kim, M.K. Cho, "Design of numerical breast phantom and its application”, The Fifth International Symposium on Radiation Safety and Detection Technology, July 15-17 Japan, 2009.

  15. S. Yun, J.C. Han, C.H. Lim, T.G. Youm, I. Cunningham, T. Achterkirchen, and H.K. Kim†, "X-ray imaging performance of gadolinium oxysulfide phosphors made by Sedimentation” The Fifth International Symposium on Radiation Safety and Detection Technology, July 15-17 Japan, 2009.

  16. C.H. Lim, C.-S. Shon, J.C. Han, T.W. Kim, and H.K. Kim†, "Monte Carlo investigation of phosphor screen optics for the use in indirect-conversion detectors," Proc. SPIE, 7258, 72585H, 2009.

  17. S.M. Yun, C.H. Lim, T.W. Kim, and H.K. Kim†, "Pixel-structured scintillators for digital x-ray imaging," Proc. SPIE, 7258, 72583N, 2009.

  18. J.C. Han, S. Yun, C.H. Lim, T.W. Kim, and H.K. Kim†, "Feasibility study of CMOS detectors for mammography," Proc. SPIE, 7258, 72583I, 2009.

  19. H. Youn, M.K. Cho, C.-S. Shon, B.H. Cho, C. H. Kim, and H.K. Kim†, "Clinical micro-CT for dental imaging," Proc. SPIE, 7258, 72582W, 2009.

  20. M.K. Cho, J.S. Kim, Y.-B. Cho, H. Youn, S.Y. Cho, S. Cho, and H.K. Kim†, "CBCT/CBDT with the equipped x-ray projection system for image-guided proton therapy," Proc. SPIE, 7258, 72582V, 2009.

  21. C-J. Park, M.K. Cho, H.B. Youn, B.-Y. Choe, D.-I. Kim, D.-Y. Jang, H.-K. Lee, H.K. Kim†, "Reducing blur artifacts in digital tomosynthesis: Iterative self-layer subtraction," IEEE Nuclear Science Symposium and Medical Imaging Conference, Dresden, Germany, 19-25 October 2008.

  22. C-J. Park, M.K. Cho, H.B. Youn, B.-Y. Choe, D.-I. Kim, D.-Y. Jang, H.-K. Lee, H.K. Kim†, "Defective pixel detection and compensating algorithm for digital radiography based on combined wavelet and local verification analysis," The 5th KOREA-JAPAN Joint Meeting on Medical Physics, Jeju, Korea, 10-12 September 2008.

  23. M.K. Cho, J.S. Kim, H.B. Youn, S.Y. Park, K.H. Cho, S. Cho, and H.K. Kim†, "Cone-Beam CT for proton therapy using kilo-voltage x-ray system: Preliminary results," The 5th KOREA-JAPAN Joint Meeting on Medical Physics, Jeju, Korea, 10-12 September 2008.

  24. H.K. Kim† and T. Graeve, "Radiation effects on the image quality of digital radiography detectors and the role of gain-offset corrections throughout the working lifetime," Symposium on Radiation Measurements and Applications WEST 2008, Berkeley, CA, USA, 2-5 June 2008.

  25. S.M. Youn, C.H. Lim, M.K. Cho, H.K. Kim† and T. Graeve, "Analysis of the signal and noise characteristics induced by unattenuated x-rays from a scintillator in indirect-detection CMOS photodiode array detectors," Symposium on Radiation Measurements and Applications WEST 2008, Berkeley, CA, USA, 2-5 June 2008.

  26. C.H. Lim, S.M. Youn, and H.K. Kim†, "Feasibility of integrally structured scintillator/photodiode array detectors for digital radiography," IEEE Nuclear Science Symposium and Medical Imaging Conference, Hawaii, USA, 27 October - 3 November 2007.

  27. M.K. Cho, H.K. Kim†, S.-S. Kim, T.W. Kim, S.T. Kim, and S.H. Shin, "Development of dental tomosynthesis system," IEEE Nuclear Science Symposium and Medical Imaging Conference, Hawaii, USA, 27 October - 3 November 2007.

  28. S.K. Heo, S.M. Youn, M.K. Cho, H.K. Kim†, T. Graeve, and H. Cho, "Development and performance evaluation of cost-effective micro-CT," IEEE Nuclear Science Symposium and Medical Imaging Conference, Hawaii, USA, 27 October - 3 November 2007.

  29. S.K. Heo, M.K. Cho, and H.K. Kim†, "Geometric calibration on CBDT using coordinates-transformed sampling," The 2nd International Conference on Advanced Nondestructive Evaluation, Busan, Korea, 17-19 October 2007.

  30. J.C. Han, H.B. Youn, and H.K. Kim†, "Fault diagnosis based on voxel data obtained from CT," The 2nd International Conference on Advanced Nondestructive Evaluation, Busan, Korea, 17-19 October 2007.

  31. S.M. Yun, M.K. Cho, C.H. Lim, H.K. Kim†, T. Graeve, H. Cho, and J.-M. Kim, "Cascaded linear-systems analysis of CMOS flat-panel detectors for digital radiography," The 2nd International Conference on Advanced Nondestructive Evaluation, Busan, Korea, 17-19 October 2007.

  32. M.K. Cho, S.K. Heo, and H.K. Kim†, "Self-layer subtractive digital tomosynthesis," The 2nd International Conference on Advanced Nondestructive Evaluation, Busan, Korea, 17-19 October 2007.

  33. H.K. Kim†, S.M. Youn, and C.H. Lim, "Cascaded model analysis of pixellated scintillator imaging detectors," IEEE 9th International Conference on Inorganic Scintillators and their Applications, Winston-Salem, NC, USA, 4-8 June 2007.

  34. C.H. Lim, H.K. Kim†, H. Cho, "Monte Carlo modeling and analysis of structured CsI scintillator-coupled pixel detectors," IEEE 9th International Conference on Inorganic Scintillators and their Applications, Winston-Salem, NC, USA, 4-8 June 2007.

  35. M.K. Cho, S.M. Youn, C.H. Lim, H.K. Kim†, H. Cho, J.-M. Kim, "Measurements of x-ray imaging performance of granular phosphors," IEEE 9th International Conference on Inorganic Scintillators and their Applications, Winston-Salem, NC, USA, 4-8 June 2007.

  36. M.K. Cho, H.K. Kim†, S.M. Youn, H.B. Youn, H.H. Cho, J. Park, S.K. Heo, C.H. Lim, C.-S. Shon, and M.H. Cheong, "A toolbox to extract STL files from CT data for computer-aided detection," IEEE Nuclear Science Symposium and Medical Imaging Conference, San Diego, USA, 29 October - 5 November 2006.

  37. M.K. Cho, H.K. Kim†, M.H. Cheong, C.H. Lim, C.-S. Shon, and T. Graeve, "Radiation effects on image quality of CMOS photodiode array detectors," IEEE Nuclear Science Symposium and Medical Imaging Conference, San Diego, USA, 29 October - 5 November 2006.

  38. H.K. Kim†, M.K. Cho, and T.W. Kim, "Development of a cone-beam dental CT system," IEEE Nuclear Science Symposium and Medical Imaging Conference, San Diego, USA, 29 October - 5 November 2006.

  39. C.H. Lim, H.K. Kim†, M.K. Cho, M.H. Cheong, C.-S. Shon, and H. Cho, "Monte Carlo spectral analysis of phosphor screens for x-ray imaging," IEEE Nuclear Science Symposium and Medical Imaging Conference, San Diego, USA, 29 October - 5 November 2006.

  40. G. Cho, Y.K. Kim, S.H. Cho, D.K. Kim, B.J. Kim, H.J. Seo, and H.K. Kim, "Synthesis and characterization of doped ceramic scintillators based on (Gd,Y)2O3," IEEE Nuclear Science Symposium and Medical Imaging Conference, Puerto Rico, 23-29 October 2005.

  41. C.-S. Shon, H.K. Kim†, M.K. Cho, M.H. Cheong, and J.-M. Kim, "Design of a computational utility for x-ray spectral analysis," The 1st International Conference on Advanced Nondestructive Evaluation, Jeju, Korea, 7-9 November 2005.

  42. M.H. Cheong, H.K. Kim†, M.K. Cho, C.-S. Shon, and J.-M. Kim, "Investigation of scintillation screens for x-ray imaging," The 1st International Conference on Advanced Nondestructive Evaluation, Jeju, Korea, 7-9 November 2005.

  43. M.K. Cho and H.K. Kim†, "X-ray imaging with a CMOS pixel detector: System design and initial performances," The 1st International Conference on Advanced Nondestructive Evaluation, Jeju, Korea, 7-9 November 2005.

  44. H.K. Kim† and M.K. Cho, "Development and operation of LIGA-processed gas avalanche detectors," International Symposium on Research Reactor and Neutron Science, Daejon, Korea, 11 April 2005.

  45. H.K. Kim, "Microtomography with a flat-panel detector: Initial performances," The Second Radiography Workshop, Daejeon, Korea, 9 April 2004.

  46. S.C. Lee, H.K. Kim, I.K. Chun, M.H. Cho, Min H. Cho, and S.Y. Lee, "Development and characterization of a flat-panel detector-based microtomography system," Asia-Pacific Conference on Non-Destructive Testing, Jeju, Korea, 3-7 November 2003.

  47. H.K. Kim, S.C. Lee, I.K. Chun, M.H. Cho, Min H. Cho, S.Y. Lee, K.S. Joo, and G. Cho, "Performance evaluation of a flat-panel detector based microtomography system for small-animal imaging," IEEE Nuclear Science Symposium and Medical Imaging Conference, Portland, Oregon, USA, 19-25 October 2003.

  48. S.K. Ahn, G. Cho, Y.K. Chi, H.K. Kim, and M. Jae, "A computer code for the simulation of x-ray imaging systems," IEEE Nuclear Science Symposium and Medical Imaging Conference, Portland, Oregon, USA, 19-25 October 2003.

  49. M.H. Cho, S.C. Lee, H.K. Kim, Min H. Cho, I.K. Chun, and S.Y. Lee, "Flat panel detector based micro tomography system for in-vivo mouse imaging," World Congress on Medical Physics and Biomedical Engineering, Sydney, Australia, 24-29 August 2003.

  50. H.J. Kim, H.K. Kim, G. Cho, and J. Choi, "Construction and characterization of an amorphous silicon flat-panel detector based on ion-shower doping process," Symposium on Radiation Measurements and Applications, Ann Arbor, Michigan, USA, 21-23 May 2002.

  51. S.W. Kwak, K.H. Kim, H.K. Kim, G. Cho, Y. Yi, and J.B. Park, "Analysis of signal and noise transfer characteristics in solid-state detector for x-ray computed tomography," Symposium on Radiation Measurements and Applications, Ann Arbor, Michigan, USA, 21-23 May 2002.

  52. S.W. Kwak, K.H. Kim, H.K. Kim, G. Cho, S.K. Ahn, S.M. Goh, Y. Yi, and J.B. Park, "Analysis of factors affecting the light collection efficiency in CT detector: CWO + PIN diode," Medical Imaging 2002: Physics of Medical Imaging, L.E. Antonuk, M.J. Yaffe, Editors, Proc. SPIE 4682, 612-619, San Diego, CA, USA, 24-26 February 2002.

  53. Y.S. Kim, G. Cho, H.K. Kim, K.H. Kim, and H.J. Kim, "Spectroscopic analysis of charge transport characteristics in wide-band-gap semiconductor detectors," Medical Imaging 2002: Physics of Medical Imaging, L.E. Antonuk, M.J. Yaffe, Editors, Proc. SPIE 4682, 601-611, San Diego, CA, USA, 24-26 February 2002.

  54. H.K. Kim, S.C. Jeon, G. Cho, and S.H. Lim, "X-ray laminographic application of lens-coupled CMOS detector for PCB inspection," IEEE Nuclear Science Symposium and Medical Imaging Conference, 1620-1623, San Diego, CA, USA, 4-10 November 2001.

  55. S.W. Kwak, H.K. Kim, Y.S. Kim, S.C. Jeon, and G. Cho, "Characteristics of PIN photodiode for computed tomography," The First International Symposium on Radiation Safety and Detection Technology, Seoul, Korea, 18-19 July 2001.

  56. S.C. Jeon, H.K. Kim, Y.S. Kim, S.W. Kwak, and G. Cho, "Study on the laminographic PCB inspection system," The First International Symposium on Radiation Safety and Detection Technology, Seoul, Korea, 18-19 July 2001.

  57. Y.H. Chung, G. Cho, H.K. Kim, S.J. Yoo, Y.S. Jung, and S.B. Wee, "Design of a compact soft x-ray pinhole camera for plasma studies in the Hanbit magnetic mirror device," IEEE Nuclear Science Symposium and Medical Imaging Conference, Lyon, France, 15-20 October 2000.

  58. S.W. Lee, H.K. Kim, G. Cho, Y.H. Shin, and Y.Y. Won, "A 3D x-ray microtomographic system with CMOS image sensor," IEEE Nuclear Science Symposium and Medical Imaging Conference, Lyon, France, 15-20 October 2000.

  59. G. Cho, H.K. Kim, Y.H. Chung, D.K. Kim, H.K. Lee, T.S. Suh, and K. Joo, "Monte Carlo analyses of x-ray absorption, noise and detective quantum efficiency considering therapeutic x-ray spectrum in portal imaging detector," IEEE Nuclear Science Symposium and Medical Imaging Conference, Lyon, France, 15-20 October 2000.

  60. H.K. Kim, S.W. Lee, G. Cho, Y.H. Shin, and H.S. Cho, "Development and evaluation of a digital radiographic system based on CMOS image sensor," IEEE Nuclear Science Symposium and Medical Imaging Conference, Lyon, France, 15-20 October 2000.

  61. H.K. Kim, K.H. Jackson, J. Lee, I.J. Park, S.H. Han, J. Kadyk, V. Perez-Mendez, W. Wenzel, and G. Cho, "Gas electron multiplier development using LIGA," Advanced Light Source Compendium of User Abstracts, Lawrence Berkeley National Laboratory, Berkeley, USA, 1999.

  62. S.H. Han, W.S. Hong, H.K. Kim, J.G. Kim, I.J. Park, J. Kadyk, W. Wenzel, and V. Perez-Mendez, "Insensitive zones and space resolution of microdot (MDOT) detectors of 50, 100 and 200 micron pitch," IEEE Nuclear Science Symposium and Medical Imaging Conference, Seattle, USA, 26-29 October 1999.

  63. H.K. Kim, K. Jackson, W.S. Hong, I.J. Park, S.H. Han, J. Kadyk, V. Perez-Mendez, W. Wenzel, and G. Cho, "Application of the LIGA process for fabrication of gas avalanche devices," IEEE Nuclear Science Symposium and Medical Imaging Conference, Seattle, USA, 26-29 October 1999.

  64. I.J. Park, J.G. Kim, H.K. Kim, W.S. Hong, S.H. Han, V. Perez-Mendez, J. Kadyk, W. Wenzel, and K.S. Joo, "Columnar cesium iodide (CsI) and LIGA micro-hole arrays for use in gas avalanche detectors," IEEE Nuclear Science Symposium and Medical Imaging Conference, Seattle, USA, 26-29 October 1999.

  65. H.K. Kim, G. Cho, Y.H. Chung, H.K. Lee, and S.C. Yoon, "Monte Carlo studies of metal/phosphor screen in therapeutic x-ray imaging," Symposium on Radiation Measurements and Applications, Michigan, USA, 11-14 May 1998.

  66. G. Cho, H.K. Kim, H. Woo, G. Oh, and D.K. Ha, "Electronic dose conversion technique using a NaI(Tl) detector for assessment of exposure dose rate from environmental radiation," IEEE Nuclear Science Symposium and Medical Imaging Conference, Albuquerque, USA, November 11-15 1997.

  1. H. Youn, J.H. Kim, and H.K. Kim†, “Study for modeling of numerical breast phantom and imaging simulation” , The 41th Korean Society Medical and Biological Engineering, Kangwon, May 1-3, 2010.

  2. H.R. Park, H. Youn, and H.K. Kim†, “Finite elemental modeling of breast deformation based on MRI data”, The 41th Korean Society Medical and Biological Engineering, Kangwon, May 1-3, 2010.

  3. S. Yun, C.H. Lim, and H.K. Kim†, “Development of pixel-structured scintillators for high-resolution digital radiography”, The 12th Korean MEMS Conference, Busan, April 1-3, 2010.

  4. J.Y. Kim, H. Youn, M.K. Cho, and H.K. Kim†, “Impulse response in various scanning geometries for digital tomosynthesis”, Transactions of the Korean Nuclear Society Spring Meeting, Pyeongchang, Korea, May 27, 2010.

  5. S.Y. Jang, H. Youn, and H.K. Kim†, “Optimization of imaging geometry in x-ray microtomography system”, Transactions of the Korean Nuclear Society Spring Meeting, Pyeongchang, Korea, May 27, 2010.

  6. O. Joe, S. Yun, and H.K. Kim†, “Feasibility study of flexible flat-panel x-ray detectors for digital radiography”, Transactions of the Korean Nuclear Society Spring Meeting, Pyeongchang, Korea, May 27, 2010.

  7. J.C. Han, S. Yun, C.H. Lim, and H.K. Kim†, “Signal and noise characteristics in radiation-damaged CMOS detector”, Transactions of the Korean Nuclear Society Spring Meeting, Pyeongchang, Korea, May 27, 2010.

  8. J.C. Han, S. Yun, C.H. Lim, and H.K. Kim†, “Signal and noise characteristics in radiation-damaged CMOS detector”, Transactions of the Korean Nuclear Society Spring Meeting, Pyeongchang, Korea, May 27, 2009.

  9. H. Youn, J.S. Kim, M.K. Cho, E. Shin, J. Shin, S. Joo, Y. Han, and H.K. Kim†, “영상유도 방사선 치료를 위한 디지털 영상 합성법에서의 스캔 각도 및 투사영상 수가 콘트라스트에 미치는 영향”, The Korean Society Of Medical Physics Autumn Meeting, 10 April 2009.

  10. M.K. Cho, H.K. Kim, S.Y. Park, M. Yoon, D. Shin, and S.B. Lee “Patient positioning method for radiotherapy using digital tomosynthesis”, The Korean Society Of Medical Physics Autumn Meeting, 10 April 2009.

  11. H.K. Kim†, “World War III: DR detector”, The Korean Society Of Medical Physics Spring Meeting, Gangneung, 10 April 2009.

  12. J.C. Han, S. Yun, I. Cunningham, T. Achterkirchen, and H.K. Kim†, “Analysis of the signal and noise due to the direct x-ray absorption in CMOS detectors”, The Korea Physics Society Spring Meeting, Taejon, Korea, 22 April 2009.

  13. J.C. Han, S. Yun, I. Cungingham, T. Achterkirchen, and H.K. Kim†, “Analysis of the direct x-ray absorption noise in phosphor-coupled CMOS detectors”, Transactions of the Korean Nuclear Society Spring Meeting, Jeju, Korea, May 22, 2009.

  14. M.K. Cho, J.S. Kim, H. Youn, S.Y. Park, S. Cho, and H.K. Kim†, “ On-board CBCT/CBDT for image-guided proton therapy: Initial performance evaluation”, Transactions of the Korean Nuclear Society Spring Meeting, Jeju, Korea, May 22, 2009.

  15. C.H. Lim, C.-S. Shon, T.G. Youm, and H.K. Kim†, “Impacts of optical-coupling properties in indirect-conversion detectors”, Transactions of the Korean Nuclear Society Spring Meeting, Jeju, Korea, May 22, 2009.

  16. H. Youn, M.K. Cho, S.K. Heo, J.Y. Kim, H.J. Lee, B.H. Cho, and H.K. Kim†, “CMOS flat panel CBCT for dental imaging”, Transactions of the Korean Nuclear Society Spring Meeting, Jeju, Korea, May 22, 2009.

  17. S. Yun, T.W. Kim, J.S. Ko, and H.K. Kim†, “Development of phosphor-filled micro-well arrays for digital x-ray imaging”, Transactions of the Korean Nuclear Society Spring Meeting, Jeju, Korea, May 22, 2009.

  18. J.S. Kim, M.K. Cho, H.B. Youn, H.K. Kim†, M.K. Yoon, D.H. Sin, S.B. Lee, S.Y. Park, and K.H. Cho, "CBCT and digital tomosynthesis for image-guided proton therapy," The Korea Society of Medical & Biological Engineering Spring Meeting, 11 Seoul, Korea, 10 October 2008.

  19. M.K. Cho, H.B. Yoon, C.S. Shon, J.C. Han, S.M. Yoon, C.H. Lim, and H.K. Kim†, "Development and applications of a cost-effective micro-CT system," The Korean Society of Mechanical Engineers Busan Spring Annual Meeting, Busan, Korea, 20-21 June 2008.

  20. M.K. Cho and H.K. Kim†, "Backprojection filtering method with insuffcient views in limited angle geometry for dental imaging," The Korea Society of Medical & Biological Engineering Spring Meeting, Jeonju, Korea, 11-12 May 2007.

  21. M.H. Jeong, C.H. Lim, and H.K. Kim†, "Development of graphic user interface for CT simulation," The Korea Society of Medical & Biological Engineering Spring Meeting, Korea, 11-12 Jeonju 2007.

  22. H.B. Youn, S.S. Kim, and H.K. Kim†, "Extraction CAD file from CT data and medical RP," The Korea Society of Medical & Biological Engineering Spring Meeting, 21-24, Korea, 11-12 Jeonju 2007.

  23. S.M. Yoon and H.K. Kim†, "Noise analysis of direct x-ray absorption in the pixel array of indirect-detection detectors," The Korea Society of Medical & Biological Engineering Spring Meeting, Korea, 11-12 Jeonju 2007.

  24. S.G. Heo, M.K. Cho, and H.K. Kim†, "Geometric calibration in cone-beam tomography using coordinates-transformed sampling," The Korea Society of Nondestructive Testing Spring Meeting, Daejeon, Korea, 10-11 May 2007.

  25. J.C. Han, H.B. Yoon, S.M. Yoon, M.K. Cho, and H.K. Kim†, "NDT based on voxel data," The Korea Society of Nondestructive Testing Spring Meeting, Daejeon, Korea, 10-11 May 2007.

  26. C.S. Shon, M.K. Cho, and H.K. Kim†, "Deblurring method in limited angle tomography," The Korea Society of Nondestructive Testing Spring Meeting, 214-218 Daejeon, Korea, 10-11 May 2007.

  27. H.K. Kim† and M.K. Cho, "Radiation effects on digital radiography," The Korean Nuclear Society Spring Meeting, Jeju, Korea, 10-11 May 2007.

  28. H.K. Kim†, M.K. Cho, and S.S. Kim, "Limited angle tomography," The Korean Nuclear Society Spring Meeting, Jeju, Korea, 10-11 May 2007.

  29. S.M. Yoon, H.B. Yoon, J.C. Han, M.K. Cho, and H.K. Kim†, "Development of a graphical platform for computer-aided fault diagnosis based on CT data," The Institute of Control, Automation and Systems Engineering Busan Autumn Meeting, Busan, Korea, 2 December 2006.

  30. S.M. Yoon, H.B. Yoon, S.K. Heo, and H.K. Kim†, "Development of a graphical platform based on CT data for medical RP modeling," The Korea Society of Medical & Biological Engineering Autumn Meeting, Wonju, Korea, 3 November 2006.

  31. M.K. Cho and H.K. Kim†, "Experimental investigation of output signals from CMOS photodiode arrays with respect to the accumulated dose," The Korea Physical Society Autumn Meeting, Daegu, Korea, 20 October 2006.

  32. M.H. Jeong, M.K. Cho, C.H Lim, C-S. Shon, J.C. Han, and H.K. Kim†, "Development of an MCNPXTM graphic user interface for CT simulation," The Korea Physical Society Autumn Meeting, Daegu, Korea, 20 October 2006.

  33. C.H Lim, M.K. Cho, M.H. Jeong, C-S. Shon, J.C. Han, and H.K. Kim†, "Characterization of x-ray phosphor screens using Monte Carlo simulation," The Korea Physical Society Autumn Meeting, Daegu, Korea, 20 October 2006.

  34. S.M Youn, H.B. Youn, H.H. Cho, J. Park, S.K. Heo, M.K. Cho, and H.K. Kim†, "Extracting STL Files from Measured CT Data: Application to Biomedical Modeling," The Korean Nuclear Society Spring Meeting, Kangchon, 25 May 2006.

  35. C.H. Lim, M.H. Cheong, M.K. Cho, C-S. Shon, and H.K. Kim†, "Monte Carlo investigation of phosphor screens for x-ray imaging," The Korean Nuclear Society Spring Meeting, Kangchon, 25 May 2006.

  36. M.K. Cho, H.K. Kim†, C-S. Shon, and M.H. Cheong, "Development of desktop micro-CT system," The Korea Society of Medical & Biological Engineering Autumn Meeting, Seoul, Korea, 2 December 2005. [This paper won the Best Award in Student Paper Competition]

  37. H.K. Kim†, M.K. Cho, and S.S. Lee, "Desktop microtomography with a CMOS pixel detector," The Korean Nuclear Society Autumn Meeting, Seoul, 27 October 2005.

  38. M.K. Cho, H.K. Kim†, C-S. Shon, M.H. Cheong, and S.S. Lee, "Development of x-ray inspection system of electronic packaging for minute defect detection," The Korean Mechanical Society Busan Autumn Meeting, Busan, 30 September 2005.

  39. H.K. Kim, "Investigation of digital laminography with a lens-coupled CMOS detector for PCB inspection," The PNU-LGE Tianjin Joint Workshop 2005, Tianjin, China, 20-22 July 2005.

  40. C-S. Shon, M.K. Cho, M.H. Cheong, and H.K. Kim†, "Development of a computational tool for x-ray spectral analysis and its Applications into the design of x-ray sensors," The Korean Society for Nondestructive Testing Spring Meeting, Sihung, Korea, 13-14 May 2005.

  41. S.I. Choi, H. Cho, D.H. Kim, K.S. Joo, S. Kim, B.S. Lee, H.K. Kim, and J.S. Ko, "Simulation results for fabrication MSGC detector with 2 μm guard strips," The Korea Society of Medical & Biological Engineering Autumn Meeting, Seoul, Korea, 26 November 2004.

  42. M.K. Cho, H.K. Kim†, M.H. Cheong, S.J. Hwang, J.S. Ko, and H. Cho, "Finite element analysis of electric field properties in gas electron multipliers," The Korean Nuclear Society Autumn Meeting, Yongpyoung, Korea, 29 October, 2004.

  43. S.K. Ahn, H.K. Kim†, G. Cho, J.S. Ko, and H. Cho, "Development of a gas electron multiplier with glass substrates," The Korea Physical Society Autumn Meeting, Jeju, Korea, 22 October 2004.

  44. M.K. Cho, M.H. Cheong, H.K. Kim†, S.J. Hwang, J.S. Ko, and H. Cho, "Electric field simulation of gas electron multipliers with various geometries," The Korea Physical Society Autumn Meeting, Jeju, Korea, 22 October 2004. [This presentation won the Best Poster Award]

  45. S.I. Choi, H. Cho, S. Kim, B.S. Lee, H.K. Kim, and J.S. Ko, "Introduction of guard strips to MSGC cathode for the remedy of spark damage effect," The Korea Physical Society Autumn Meeting, Jeju, Korea, 22 October 2004.

  46. S.I. Choi, H. Cho, S. Kim, B.S. Lee, H.K. Kim, and J.S. Ko, "Photolithographic mask and compact test chamber designs for MSGC detector fabrication and testing," The Korea Physical Society Autumn Meeting, Jeju, Korea, 22 October 2004.

  47. S.I. Choi, H. Cho, D.H. Kim, K.S. Joo, S. Kim, B.S. Lee, H.K. Kim, and J.S. Ko, "Study on signal-readout circuit designs for the MSGC detector," The Korea Physical Society Autumn Meeting, Jeju, Korea, 22 October 2004.

  48. I.K. Chun, S.C. Lee, M.H. Cho, H.K. Kim, M.H. Cho, and S.Y. Lee, "ROI reconstruction with partial and full FOV projection data set," The Korea Society of Medical & Biological Engineering Autumn Meeting, Seoul, Korea, 7 November 2003.

  49. S.C. Lee, I.K. Chun, M.H. Cho, H.K. Kim, M.H. Cho, and S.Y. Lee, "Micro Bio-CT System for In-vivo Mouse Imaging," The Korea Society of Medical & Biological Engineering Autumn Meeting, Wonju, Korea, 16 May 2003. [This paper won the Best Award in Student Paper Competition]

  50. H.K. Kim, "Digital x-ray imaging technology," The 37th Symposium of The Korean Radiological Technologists Association, Seoul, Korea, 5 October 2002. [Invited Talk]

  51. S.W. Kwak, H.K. Kim, Y.S. Kim, and S.C. Jeon, G. Cho, Y. Yi, S.W. Yook, J.B. Park, and S.M. Ko, "Development of solid-state detector for x-ray computed tomography," The Korean Nuclear Society Autumn Meeting, Seoul, Korea, October 2001.

  52. J.A. Lee, H.K. Lee, T.S. Suh, B.Y. Chae, K.S. Shin, G. Cho, H.K. Kim, and S.W. Lee, "Development of EPID (electronic portal imaging device) for the verification of radiation treatment," The Korea Society of Medical & Biological Engineering Autumn Meeting, Seoul, Korea, 10 November 2000.

  53. S.W. Lee, H.K. Kim, G. Cho, Y.H. Shin, and Y.Y. Won, "Development of a micro-CT for cancellous bone research," The Korea Society of Medical & Biological Engineering Autumn Meeting, Seoul, Korea, 10 November 2000.

  54. I.J. Park, K. Jackson, J.G. Kim, H.K. Kim, V. Perez-Mendez, J. Kadyk, and W. Wenzel, "Performance of GEM made by deep x-ray lithography technique," The Third Biomedical Research Center Symposium, Daejeon, Korea, 17 August 2000.

  55. Y.H. Chung, G. Cho, H.K. Kim, W. Lee, and Y.S. Kim, "A study on the optimization of optical guide of gamma camera detector," The Korean Nuclear Society Spring Meeting, Gori, Korea, May 2000.

  56. H.K. Kim and G. Cho, "Theoretical DQE(f) of portal imaging detector using Monte Carlo method," The Second Biomedical Research Center Symposium, Daejeon, Korea, 16 January 1999.

  57. H.K. Kim, G. Cho, Y.H. Chung, S.K. Ahn, H.K. Lee, H.N. Kim, and S.C. Yoon, "CCD-based EPID and frame averaging technique," The Korea Society of Medical & Biological Engineering Autumn Meeting, Seoul, Korea, 20 November 1998.

  58. H.K. Kim, Y.H. Chung, G. Cho, D.K. Ha, H. Woo, and H.K. Lee, "NaI(Tl) detector based system for assessment of exposure dose rate due to environmental radiation," The KARP Autumn Meeting, Kyungju, Korea, November 1997.

  59. H.K. Kim, G. Cho, W.S. Hur, W. Lee, and W.S. Hong, "Comparison of alpha particle signals with respect to incident direction onto a-Si:H pin diodes," The Korean Nuclear Society Spring Meeting, Jeju, Korea, May 1996.

  60. W. Lee, G. Cho, H.K. Kim, and W.S. Hur, "Calculation of the neutron sensitivity in Rh self-powered detector," The Korean Nuclear Society Spring Meeting, Jeju, Korea, May 1996.

  61. H.K. Kim, W.S. Hur, and G. Cho, "Equivalent noise charge measurements in hydrogenated amorphous silicon radiation detectors," The Korean Nuclear Society Autumn Meeting, Seoul, Korea, October 1995.

  1. P.G. Jung, C.H. Lee, K.M. Bae, J.M. Lee, S.M. Lee, C.H. Lim, S. Yun, H.K. Kim, and J.S. Ko†, “Microdome-gooved Gd2O2S:Tb scintillator for flexible and high resolution digital radiography”, Optics Express, 18(4), 14850-14858, 2010. Selected by the editor-in-chief, Gregory Faris, for publication in the Virtual Journal for Biomedical Optics (VJBO) http://vjbo.osa.org/virtual_issue.cfm

  2. H.K. Kim†, M.K. Cho, T. Achterkirchen, and W. Lee, "Radiation effects on the performance of CMOS photodiode array detectors and the role of gain-offset corrections," IEEE Trans. Nucl. Sci., 56(3), 1179-1183, 2009.

  3. S. Yun, H.K. Kim†, C.H. Lim, M.K. Cho, T. Achterkirchen, and I. Cunningham, "Signal and noise characteristics induced by unattenuated x rays from a scintillator in indirect-conversion CMOS photodiode array detectors," IEEE Trans. Nucl. Sci., 56(3), 1121-1128, 2009.

  4. H.K. Kim†, S. Yun, J.C. Han, H. Youn, M.K. Cho, C.H. Lim, S.K. Heo, C.-S. Shon, S.-S. Kim, B.H. Cho, and T.G. Achterkirchen, "Performance characterization of microtomography with complementary metal-oxide-semiconductor detectors for computer-aided defect inspection," J. Appl. Phys., vol. 105, no. 9, 094701, May 2009.

  5. I.D. Jung, M.K. Cho, S.M. Lee, K.M. Bae, P.G. Jung, C.H. Lee, J.M. Lee, S. Yun, H.K. Kim, S.S. Kim, and J.S. Ko, "Flexible Gd2O2S:Tb scintillator pixelated with polyethylene microstructures for digital x-ray image sensors," J. Micromech. Microeng., 19(1), 015014, 2009. Selected to be part of Journal of Micromechanics and Microengineering Highlights of 2009 collection. http://herald.iop.org/JMM/m50/jip/Highlights09/link/3488

  6. I.D. Jung, M.K. Cho, K.M. Bae, S.M. Lee, P.G. Jung, H.K. Kim, S.S. Kim, and J.S. Ko, "Pixel-structured scintillator with polymeric microstructures for x-ray image sensors," ETRI J., 30(5), 747-749, 2008.

  7. H.K. Kim†, I.A. Cunningham, Z. Yin, and G. Cho, "On the development of digital radiography detectors: A review," Int. J. Precis. Eng. Manuf., 9(4), 86-100, 2008.

  8. H.K. Kim†, S.M. Yun, J.S. Ko, G. Cho, and T. Graeve, "Cascade modeling of pixelated scintillator detectors for x-ray imaging," IEEE Trans. Nucl. Sci., 55(3), 1357-1366, 2008.

  9. M.K. Cho, H.K. Kim†, T. Graeve, S.M. Yun, C.H. Lim, H. Cho, and J.-M. Kim, "Measurements of x-ray imaging performance of granular phosphors with direct-coupled CMOS sensors," IEEE Trans. Nucl. Sci., 55(3), 1338-1343, 2008.

  10. H. Cho, S. Choi, Y. Koo, T. Kim, C. Ro, B. Lee, S. Kim, and H. Kim, "Performance evaluation of a digital intraoral imaging device based on the CMOS photosensor array coupled with an integrated x-ray conversion fiber-optic faceplate," Nucl. Instrum. Meth. A, 579(1), 330-333, 2007.

  11. H.K. Kim, "Generalized cascaded model to assess noise transfer in scintillator-based x-ray imaging detectors," Appl. Phys. Lett., 89(23), 233504-1-233504-3, 2006.

  12. C.-S. Shon, H.K. Kim†, M.K. Cho, M.H. Cheong, C.H. Lim, and J.-M. Kim, "Computational toolset for x-ray spectral analysis," Key Eng. Mater., 321-323, 1060-1065, 2006.

  13. J.-M. Kim, H.K. Kim†, M.H. Cheong, M.K. Cho, C.-S. Shon, and C.H. Lim, "Investigation of scintillation screens for x-ray imaging," Key Eng. Mater., 321-323, 1056-1059, 2006.

  14. M.K. Cho, H.K. Kim†, T. Graeve, and J.-M. Kim, "Characterization of CMOS pixel detectors for digital x-ray imaging," Key Eng. Mater., 321-323, 1052-1055, 2006.

  15. H. Cho, S. Choi, H. Kim, B. Lee, and S. Kim, "Gas electron multipliers for potential applications to digital radiography," Key Eng. Mater., 321-323, 125-128, 2006.

  16. H.K. Kim, "Analytical model for incomplete signal generation in semiconductor detectors," Appl. Phys. Lett., 88(13), 132112-1-132112-3, 2006.

  17. H.K. Kim†, M.K. Cho, S.K. Ahn, G. Cho, and H. Cho, "Electrical investigation of LIGA-processed gas electron multipliers," J. Kor. Phys. Soc., 48(1), 40-46, 2006.

  18. H.S. Cho, M.H. Jeong, B.S. Han, S. Kim, B.S. Lee, H.K. Kim, and S.C. Lee, "Development of a portable digital radiographic system based on FOP-coupled CMOS image sensor and its performance evaluation," IEEE Trans. Nucl. Sci., 52(5), 1766-1772, 2005.

  19. H.K. Kim†, J.K. Ahn, and G. Cho, "Development of a lens-coupled CMOS detector for an x-ray inspection system," Nucl. Instrum. Meth. A, 545(1-2), 210-216, 2005. [11 June 2005] Erratum, Nucl. Instrum. Meth. A, 551(2-3), 575, 2005. [11 October 2005]

  20. H.K. Kim, S.C. Lee, M.H. Cho, S.Y. Lee, and G. Cho, "Use of a flat-panel detector for microtomography: A feasibility study for small-animal imaging," IEEE Trans. Nucl. Sci., 52(1), 193-198, 2005.

  21. Y.K. Kim, H.K. Kim, G. Cho, and D.K. Kim, "Effect of yttria substitution on the light output of (Gd,Y)2O3:Eu ceramic scintillator," Nucl. Instrum. Meth. B, 225(3), 392-396, 2004. [September 2004]

  22. S.C. Lee, H.K. Kim, I.K. Chun, M.H. Cho, M.H. Cho, and S.Y. Lee, "Development and characterization of a flat-panel detector-based microtomography system," Key Eng. Mater., 270-273, 245-251, 2004.

  23. Y.K. Kim, H.K. Kim, D.K. Kim, and G. Cho, "Synthesis of Eu-doped (Gd,Y)2O3 transparent optical ceramic scintillator," J. Mater. Res., 19(2), 413-416, 2004. [February 2004]

  24. S.C. Lee, H.K. Kim, I.K. Chun, M.H. Cho, S.Y. Lee, and M.H. Cho, "A flat-panel detector based micro-CT system: Performance evaluation for small-animal imaging," Phys. Med. Biol., 48(24), 4173-4185, 2003. [5 December 2003]

  25. H.J. Kim, H.K. Kim, G. Cho, and J. Choi, "Construction and characterization of an amorphous silicon flat-panel detector based on ion-shower doping process," Nucl. Instrum. Meth. A, 505(1-2), 155-158, 2003. [1 June 2003]

  26. H. Cho, H. Yoon, S. Han, and H. Kim, "Operating characteristics of open and closed-end gas electron multipliers," J. Kor. Phys. Soc., 42(1), 56-59, 2003. [January 2003]

  27. H.K. Kim, G. Cho, D.K. Kim, and H. Cho, "Gas electron multiplier made by deep-etch x-ray lithography," J. Kor. Phys. Soc., 40(5), 812-819, 2002. [May 2002]

  28. H.K. Kim, G. Cho, and H. Cho, "Performance of microdot detectors for 50-, 100-, and 200-μm pitches based on the amorphous silicon process," J. Kor. Phys. Soc., 39(2), 218-224, 2001. [August 2001]

  29. S.W. Lee, H.K. Kim, G. Cho, Y.H. Shin, and Y.Y. Won, "A 3-D x-ray microtomographic system with a CMOS image sensor," IEEE Trans. Nucl. Sci., 48(4), 1503-1505, 2001. [August 2001]

  30. G. Cho, H.K. Kim, Y.H. Chung, D.K. Kim, H.K. Lee, T.S. Suh, and K.S. Joo, "Monte Carlo analyses of x-ray absorption, noise, and detective quantum efficiency considering therapeutic x-ray spectrum in portal imaging detector," IEEE Trans. Nucl. Sci., 48(4), 1423-1427, 2001. [August 2001]

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