Conference presentation and invited lectures (since 2008)

Underline = Trainees


Invited and keynote:

“Advanced in x-ray photoconductors” The 7th International Conference on Optical, Optoelectronic and Photonic Materials and Applications, Montreal, Quebec, Canada 2016 (Invited)
“Recent Advances in Avalanche Amorphous Selenium Technology for Applications in Bio-Medical Imaging” Energy Materials Nanotechnology (EMN) Conference, Qingdao, China 2016 (Invited)
“Amorphous selenium (a-Se) for optoelectronic applications. 11th International Conference on Excitonic Processes in Condensed Matter, Nanostructured and Molecular Materials (EXCON2015), Montreal, Canada 2015 (Invited)
“Avalanche amorphous Selenium (a-Se) for optical and x-ray imaging” Energy Materials Nanotechnology (EMN) Conference, Cancun, Mexico 2015 (Invited)
“Introduction to Semiconductor-Enabled Medical Devices” 17th Canadian Science and Semiconductor Technology Conference (CSSTC 2015), Sherbrooke, Canada 2015 (Invited)
“Electronic and transport properties of polycrystalline Lead Oxide (PbO)” Sixth International Conference on Optical, Optoelectronic and Photonic Materials and Applications (ICOOPMA 2014), Leeds, United Kingdom 2014 (Invited)
“CdZnTe for high rate photon counting applications”, Novel Materials for Radiation Medical Imaging, London, United Kingdom 2014 (Keynote)
“Recent advances in avalanche amorphous selenium technology and its applications in optical, x-ray and gamma-ray imaging” VIII International Conference on Amorphous and microcrystalline semiconductors, Ioffe Physical-Technical Institute, St. Petersburg, Russian Federation 2012 (Invited)
“Recent advances in avalanche amorphous selenium technology and its applications in optical and gamma-ray imaging” 5th International Conference on Optical, Optoelectronic and Photonic Materials and Applications (ICOOPMA 2012), Nara, Japan 2012 (Invited)
“CdZnTe gamma camera for image guided breast brachytherapy” The Lake Superior International Workshop on Advanced Imaging Devices for early breast cancer detection and diagnosis, Thunder Bay, Ontario, Canada 2011 (Invited)
“Recent Advances in High Gain Avalanche Amorphous Selenium Detectors for Medical Imaging Applications” 15th Canadian Semiconductor Science and Technology Conference (CSSTC 2011), Vancouver, Canada 2011 (Invited)
“Comparison of Photocrystallization in Rigid and Flexible a-Se Films” 24th International Conference on Amorphous and Nanocrystalline Semiconductors (ICANS24), Nara, Japan 2011 (Invited)
“Avalanche Multiplication in Amorphous Selenium Photoconductive Layers and its Application in Imaging”1st International Congress on Instrumentation and Applied Sciences ICIAS, Cancun, Mexico, 2010 (Keynote)
“Recent advances in x-ray photoconductors: selected examples on PbO and a-Se” Fourth International Conference on Optical, Optoelectronic and Photonic Materials and Applications (ICOOPMA 2010), August 2010, Budapest, Hungary, 2010 (Invited)
“Avalanche Multiplication in Amorphous Selenium: Physics and Application” The Canadian Association of Physicists (CAP) Congress 2009, Moncton, NB, Canada 2009 (Invited)
“Avalanche Multiplication and Photoinduced Metastability in a-Se at High Electric Field” Japanese Applied Physics Society Meeting, September 2008, Nagoya, Japan 2008 (Invited)
“Charge Photogeneration in Amorphous Selenium in the Avalanche Multiplication Regime” Third International Conference on Optical, Optoelectronic and Photonic Materials and Applications (ICOOPMA 2008), Edmonton, Alberta, Canada 2008 (Invited)
“Development of a Solid-State Avalanche Amorphous Selenium Detector” IEEE Nuclear Science Symposium & Medical Imaging Conference 2008, Dresden, Germany 2008 (Invited)

Oral and posters:

O. Bubon, K.Jandieri, A. Reznik, S. Kasap, S. Baranovskii “Recombination of x-ray generated electron-hole pairs in a-Se and its impact on a-Se detectors” 18th International Workshop on Radiation Imaging Detectors (IWORID18) Barcelona, Spain 2016
O. Semeniuk, A. Reznik “Advances in Lead Oxide (PbO) photoconductor for direct conversion X-ray detectors” 18th International Workshop on Radiation Imaging Detectors (IWORID18) Barcelona, Spain 2016
O. Bubon, A Reznik “Electron-Hole Creation Energy in a-Se at Very High Fields” 5th International Workshop on Advances on Materials for Radiation Detection and Imaging, Montreal, Quebec, Canada 2016
O. Semeniuk, A. Reznik “Investigation of Charge Transport in Lead Oxide” 7th International Conference on Optical, Optoelectronic and Photonic Materials and Applications, Montreal, Quebec, Canada 2016
O. Semeniuk, A. Reznik “Electronic properties of PbO” 5th International Workshop on Advances on Materials for Radiation Detection and Imaging, Montreal, Quebec, Canada 2016
O. Bubon, K. Jandieri, S. Kasap, S. Baranovski, A Reznik “Experiment meets theory for measured electron-hole pair creation energy in amorphous Selenium (a-Se)” IEEE Nuclear Science Symposium and Medical Imaging Conference, and Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors workshop, San Diego, United States 2015
O. Semeniuk, A. Reznik “Lead oxide: charge transport and perspectives for applications in direct conversion X-ray imaging” IEEE Nuclear Science Symposium, Medical Imaging Conference & Workshop on Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors, San Diego, CA, United States 2015
O. Bubon, H. Poladyan, A. Teymurazyan, A. Reznik “Low-dose Positron Emission Mammography (PEM) device for screening of high-risk population: evaluation of block detector prototype” IUPESM 2015 World Congress on Medical Physics & Biomedical Engineering, Toronto, Canada 2015
O. Semeniuk, G. Juska, G. DeCrescenzo, J. A. Rowlands, A. Reznik “Investigation of Transport Properties in Lead Oxide with CELIV” 17th Canadian Science and Semiconductor Technology (CSSTC 2015), Sherbrooke, Quebec, Canada 2015
O. Bubon, G. DeCrescenzo, J. A. Rowlands, A. Reznik “Measured electron-hole pair creation energy in amorphous Selenium (a-Se) at high electric fields using Pulsed-Height Spectroscopy method” 17th Canadian Science and Semiconductor Technology (CSSTC 2015), Sherbrooke, Quebec, Canada 2015
A. Reznik, O. Bubon, H. Poladyan,A. Teymurazyan “Low-dose Positron Emission Mammography (PEM) device for screening of high-risk population - evaluation of a block detector prototype” World Molecular Imaging Congress (WMIC 2015), Honolulu, USA 2015
O. Bubon, G. DeCrescenzo, A. Reznik “Measured electron-hole pair creation energy in amorphous Selenium (a-Se) at high electric fields” 26th International Conference on Amorphous and Nanocrystalline Semiconductors (ICANS 26), Aachen, Germany 2015
A. Mishchenko, O. Tousignant, A. Teymurazyan, A. Ravi, J-P. Pignol, J.A. Rowlands, A. Reznik “Gamma-camera for Image-guided Low-energy Breast Brachytherapy”, the 12th International Workshop on Breast Imaging, Gifu, Japan 2014
O. Semeniuk, G. Juska, G. DeCrencenzo, J.A. Rowlands, A. Reznik “Charge Transport Investigation in Lead Oxide with CELIV” IEEE Nuclear Science Symposium and Medical Imaging Conference, and Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors workshop, Seattle, Washington, United States 2014
J. Berashevich, A. Mishchenko, A. Reznik, S. Kasap “The two-step photo-excitation mechanism in a-Se or Photoinduced Effects and Defects in a-Se”, the 19th International Symposium on Non-Oxide and New Optical Glasses, Jeju, South Korea 2014
A. Mishchenko, O. Tousignant, A. Teymurazyan, A. Ravi, A. Reznik “Gamma-camera for Image-guided Low-energy Breast Brachytherapy”, 100th Annual Meeting of Radiological Society of North Americ (RSNA), Chicago, Illinois, United States 2014
O. Bubon, G. DeCrencenzo, J.A. Rowlands, A. Reznik "Amorphous Selenium (a-Se) Avalanche Photosensor for Application in Positron Emission Tomography" IEEE Nuclear Science Symposium, Medical Imaging Conference & Workshop on Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors, Seoul, Republic of Korea 2013
A. Mishchenko, J. Berashevich, A. Reznik, “Temperature dependence of photodarkening in stabilized a-Se”, the 25th International Conference on Amorphous and Nano-crystalline Semiconductors, Toronto, Ontario, Canada 2013
J. Berashevich, A. Mishchenko, A. Reznik, “Photo-induced structural changes in a-Se triggering its crystallization”, the 25th International Conference on Amorphous and Nano-crystalline Semiconductors, Toronto, Ontario, Canada 2013
A. Mishchenko, K.Wolf, M. Mitkova, A. Reznik, “Photodarkening vs. photobleaching in amorphous GexSex-1 films”, the 25th International Conference on Amorphous and Nano-crystalline Semiconductors, Toronto, Ontario, Canada 2013
O. Semeniuk, G. DeCrencenzo, J.A. Rowlands, A. Reznik “Characterization of Polycrystalline Lead Oxide (PbO) for Direct Conversion X-ray Detectors” 16th Canadian Semiconductor Science and Technology Conference and Innovations in Radiation Medical Imaging Detectors Workshop (CSSTC 2013), Thunder Bay, Ontario, Canada 2013
“Lead Oxide (PbO) for Application in Direct Conversion X-Ray Imaging Detectors” 15th International Workshop on Radiation Imaging Detectors (IWORID15), Paris, France 2013
O. Semeniuk, G. DeCrescenzo, A. Reznik “Advances in Lead Oxide Technology” 2013 IEEE Nuclear Science Symposium, Medical Imaging Conference & Workshop on Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors, Seoul, Korea, Republic of 2013
O. Semeniuk, G. DeCrescenzo, J. Berashevich. J. Rowlands, A. Reznik “Optimization of Lead Oxide (PbO) Technology for Application in Direct Conversion Fluoroscopic Detectors” 2012 IEEE Nuclear Science Symposium, Medical Imaging Conference & Workshop on Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors (2012 IEEE NSS/MIC), Anaheim, CA 2012
O. Semeniuk, G. DeCrencenzo, J.A. Rowlands, A. Reznik “Polycrystalline Lead Oxide (PbO) for Direct Conversion Fluoroscopic Detectors” 2-nd International Workshop on Advanced Technologies for Radiation Medical Imaging, Thunder Bay, Ontario, Canada 2012
O. Semeniuk, G. DeCrencenzo, J. A. Rowlands, A. Reznik “Optimization of Lead Oxide (PbO) technology for application in direct conversion detectors” 15th Canadian Semiconductor Science and Technology Conference (CSSTC 2011), Vancouver, BC, Canada 2011
B.A. Weinstein, R.E. Tallmann, G.P. Lindberg, J.A. Rowlands, A. Reznik “Photocrystallization in a-Se films with and without As-Se buffer layers” The Lake Superior International Workshop on Advanced Imaging Devices for early breast cancer detection and diagnosis, Thunder Bay, Ontario, Canada 2011
S. Cuddy, O. Bubon, G. DeCrescenzo, A. Reznik, J.A. Rowlands “Development of DOI PET with High QE a-Se Solid-State Photodetectors” 9th Annual Meeting of the Imaging Network Ontario (ImNO), Toronto, Ontario, Canada 2011
O. Bubon, G. DeCrescenzo, W. Zhao, K. Tanioka, J. Rowlands, A. Reznik “Electroded avalanche amorphous selenium (a Se) photosensor: first practical approach” The Lake Superior International Workshop on Advanced Imaging Devices for early breast cancer detection and diagnosis, Thunder Bay, Ontario, Canada 2011
O. Semeniuk, A. Reznik, J.A. Rowlands “Lead Oxide (PbO) for direct conversion x-ray flat panel detectors” The Lake Superior International Workshop on Advanced Imaging Devices for early breast cancer detection and diagnosis, Thunder Bay, Ontario, Canada 2011
“Avalanche Multiplication in Amorphous Selenium: Physics and Application” Imaging Network Ontario Symposium, Toronto, Canada 2010
“Silicon Photomultipliers for Positron Emission Tomography Detector with Depth of Interaction Encoding Capability” 11th International Workshop on Radiation Imaging Detectors, Prague, Czech Republic 2009

Invited Lectures:

"Advanced Technologies for Low Dose Radiation Medical Imaging” ATOMKI, University of Debrecen, Hungary 2017
"Advanced Technologies for Low Dose Radiation Medical Imaging” Centre for Medical Radiation Physics, University of Wollongong, Australia 2016
"Novel materials for radiation medical imaging” Xi'an Jiaotong University, X’ian, China 2016
"CT Detector Materials Project - recent progress” Philips Health Care, Haifa, Israel 2016
"Novel materials for radiation medical imaging” Bar-Ilan University, Ramat Gan, Israel 2016
"Medical Physics and Medical Imaging, or what Physicists can do for Healthcare” Faculty of Physics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine 2016
"Advanced Technologies for Medical Imaging, or what Physicists can do for Healthcare”, Faculty of Radio Physics, Electronics and Computer Systems, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine 2016
"Advanced Materials for Radiation Medical Imaging” Department of Experimental Physics, University of Debrecen, Debrecen, Hungary 2016
"Avalanche Amorphous Selenium (a-Se) for Radiation Medical Imaging Detectors” University of Manitoba, Winnipeg, Canada 2015
"Advanced Materials for Radiation Medical Imaging Detectors” SOREQ – Israel National Lab, Rehovot, Israel 2015
"Enhancing Diagnostic Imaging”, Philips Health Care, Haifa, Israel 2015
"Recent advances in avalanche amorphous selenium (a-Se) and polycrystalline Lead oxide (PbO) technologies for direct conversion medical imaging detectors” Philips Research, Hamburg, Germany 2015
"X-ray Imaging and Flat Panel Detector Technology or What Electrical Engineer can do for Healthcare?” Department of Experimental Physics, University of Debrecen, Debrecen, Hungary 2015
"Recent advances in avalanche amorphous selenium (a-Se) and polycrystalline lead oxide (PbO) technologies for direct conversion medical imaging detectors”, Sun Yat-Sen University, Guangzhou, China 2014
"Recent advances in avalanche amorphous selenium (a-Se) and polycrystalline lead oxide (PbO) technologies for direct conversion medical imaging detectors”, First Affiliated Hospital, SYNU University, Guangzhou, China 2014
"Enhancing Diagnostic Imaging”, Phillips University, Marburg, Germany 2014
"Why Lakehead University or What does it mean to study Science at Lakehead” Maple Leaf High School, Tianjin, China 2012
"Novel Materials for imaging: amorphous Selenium and polycrystalline Lead Oxide”, Phillips University, Marburg, Germany 2011
"Technology optimixation for Lead Oxide (PbO) for applications in radiation ,medical imaging “Autonomous National University of Mexico (UNAM), Mexico City, Mexico 2010
"Avalanche multiplication in amorphous selenium and its application in imaging”, Phillips University, Marburg, Germany 2010
"Avalanche Multiplication in Amorphous Selenium: Physics and Application” Autonomous National University of Mexico (UNAM), Mexico City, Mexico 2009

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