Invited Speakers

Conference Lectures

Prestigious international invited speakers will present their work during the SSD20 Conference.


Filip Vanhavere


Filip Vanhavere is an accomplished nuclear engineer with a PhD in applied physics. He has extensive experience as the head of the Radiation Protection Dosimetry and Calibration group at the Belgian Nuclear Research Centre, where he also serves as Deputy Director of the Institute of Environment, Health and Safety. Additionally, he is a Professor in the group of Experimental Radiotherapy at the University of Leuven in Belgium.

Currently, Filip Vanhavere holds the position of Chair of EURADOS and is an Associate Editor of Radiation Measurements. He has published over 200 papers in various international journals, establishing himself as a respected author and co-author in his field. 

Guerda Massillon


Guerda Massillon is a permanent and full-time Associate professor at the Physics Institute of the National Autonomous University of Mexico (UNAM). Her research area is Basic Dosimetry and its application in Medical Physics. She has received several national and international awards for her research such as: “Fellow” of the Interamerican Network of Academies of Sciences (IANAS) 2011; “Young Scientist Prize” of the International Union of Pure and Applied Physics (IUPAP) 2015; “Research Fellow” of the Royal Society, England 2015; “Marie Curie Medal”, 2017; National System of Researchers SNI (Conacyt Mexico) level II and PRIDE C of UNAM. As institutional work she was the president of the Medical Physics Division of the Mexican Physics Society, member of the TG-235 working group of the AAPM (American Association of Physicists in Medicine) and actually, an editorial board member of Physica Medica: European Journal of Medical Physics.


Pawel Olko


Pawel Olko is a highly accomplished physicist with a Ph.D. in physics from the Institute of Nuclear Physics Krakow. He is a Polish state professorship title holder and has worked in various research positions throughout his career. Dr. Olko's scientific interests and expertise include microdosimetry, dosimetry, solid state detectors, radiation protection, medical physics, and proton radiotherapy. He has published over 150 research papers in international scientific journals and has participated in numerous national and international committees and organizations. Between 2004-2007, he served as the Chair of the International Solid State Dosimetry Organization (ISSDO). Currently, Dr. Olko is the head of the Division of Applied Physics at the Institute of Nuclear Physics Polish Academy of Sciences (IFJPAN) and has been a member of the EURADOS Council since 2002. He was also elected to the Commission in 2016 and has been an active member of the Article 31 Group of Experts, EC, Luxemburg since 2005.


Ramona Gaza


Dr. Gaza is a Deputy Radiation System Manager for the Orion Multi-Purpose Crew Vehicle and the Human Health and Performance Science Team Lead for the MARE Payload on Artemis I. She is also a Leidos Technical Fellow providing subject matter expertise to several NASA programs. Her research focuses on crew protection and risk mitigation from radiation sources in space. Dr. Gaza has authored/co-authored 150+ publications and received numerous awards, including the HH&P CAD Team Award and JSC Group Achievement Award for HALO PDR in 2021, and the NASA Group Achievement Award for SpaceX Demo-2 in 2020.


Francesco Romano


Francesco Romano is a Researcher at the Catania Division of the Italian National Institute for Nuclear Physics (INFN), in Italy, and Associate Professor at PARTREC, University Medical Center Groningen (UMCG), in the Netherlands. His expertise is on radiation dosimetry and Monte Carlo simulations for medical applications.

Since 2007, he worked for about ten years at at the proton therapy centre of the INFN Southern Laboratory in Catania. He then worked at the National Physical Laboratory in London (UK) for three years as a Senior Researcher, developing and characterizing novel dosimeters for radiotherapy. In 2020 he moved to INFN in Catania, where he investigates dosimetry for conventional and FLASH radiotherapy and ion beam microdosimetry.  In 2023, he was appointed Associate Professor at UMCG, for research in proton and ion therapy at the UMCG PARTREC facility. He is Honorary Lecturer at Queen’s University in Belfast and at the University of Surrey in the UK. He co-authored over 150 papers in peer-reviewed scientific journals.

Sonia Tatumi


Prof. Tatumi held her Sc.D. from Federal University of São Paulo, PhD from the University of São Paulo, and studied at Nara University of Education, Japan during the PhD course. She is currently a professor at Federal University of São Paulo, Santos. She has experience in OSL and TL of crystals applied to geochronology and dosimetry. The research main lines are interdisciplinary studies with geoscientists in paleoenvironmental changes during the Quaternary; improvement of the methodology of luminescence dating of marine terraces, aeolian, colluvium, fluvial sediments, and archeological soil and synthesis and morphological characterization and luminescence study of nanostructured crystal for ionizing radiation dosimetry. Member of the Condensed Matter Advisory Board of Cambridge Scholars Publishing.

Stephen W.S. McKeever


Stephen McKeever is Emeritus Regents Professor of Physics at Oklahoma State University (OSU). He has authored or co-authored over 220 scientific publications and 6 books in the development and applications of luminescence in radiation dosimetry, including A Course in Luminescence Measurements and Analyses for Radiation Dosimetry (Wiley) in 2022. 

He is a Fellow of the American Physical Society, a Fellow of the Institute of Physics, and a Member of the Health Physics Society. He is presently Consulting Editor of the journal Radiation Measurements. He is the former Oklahoma Secretary for Science and Technology, and the former Vice President for Research and Technology Transfer at OSU. He is a graduate of Bangor University (UK) from where he obtained his BSc, MSc, PhD and DSc degrees. Current research interests include RPL from phosphate glasses, developments in retrospective dosimetry, and improvements in TL and OSL theory and application in dosimetry.


Željka Knežević


Željka Knežević obtained her Ph.D. in the field of thermoluminescent dosimetry. Currently, she is a senior research associate working as Head of the Radiation Chemistry and Dosimetry Laboratory at Ruđer Bošković Institute, Zagreb, Croatia, in the field of radiation dosimetry with a focus on the characterization and application of radiophotoluminescent (RPL) and thermoluminescent (TLD) dosimetry in medical applications and environmental dosimetry.

She is currently involved in different projects in the medical field with a particular focus on out-of-field dosimetry in anthropomorphic phantoms during proton/ion radiotherapy, dosimetry in pregnancy, and LET measurements with TLD and RPL detectors.

She is/was a member of the research team in several national and European-funded projects in medical dosimetry, radiation protection, and environmental radiation monitoring. Since July 2013 she has been a chairperson of EURADOS WG12 “Dosimetry in medical imaging” and a member of WG9 “Radiation dosimetry in radiotherapy” and WG3 Environmental dosimetry.

Go Okada


Dr. Okada is an Associate Professor of Applied Chemistry at Kanazawa Institute of Technology since 2022. He received his Ph.D. in Electrical Engineering from the University of Saskatchewan, Canada in 2014. After working as a Postdoctoral Fellow at the University of Saskatchewan and Lakehead University and as an Assistant Professor the Nara Institute of Science and Technology in Japan, he joined Kanazawa Institute of Technology to start his own research group as an Assistant Professor in 2018. Dr. Okada's research interests include the synthesis, characterization, and application of luminescent materials for radiation measurement, especially radiophotoluminescence (RPL).

Jeppe Brage Christensen


Jeppe Brage Christensen is a physicist at the Paul Scherrer Institute (PSI) in Switzerland since 2020.

He obtained his PhD from the Technical University of Denmark in 2019 with a focus on particle dosimetry.

His PSI tenure focuses on neutron and particle dosimetry, the latter relying on measurements with optically stimulated luminescence detectors (OSLDs).

His research concentrates on new methods for simultaneous determination of dose and LET in light ion therapy with OSLDs.


School Lectures

Prestigious international invited speakers will give lectures during the SSD20 Summer School.


Mark S. Akselrod


Dr. Akselrod is the Chief Scientist and Executive Manager at Landauer, fully owned subsidiary of Fortive Corp. He manages Stillwater, Oklahoma, Crystal Growth Division of the company. His main research interests and achievements are in the field of radiation solid state physics, crystal growth, optical instrumentation, luminescence dosimetry and optical data storage. He developed super sensitive Al2O3:C single crystals and Optically Stimulated Luminescent technique for radiation dosimetry commercialized by Landauer and still in wide use after 25 years. Novel Al2O3:C,Mg crystals were developed and patented as two-photon absorbing volumetric Optical Data Storage (ODS) media and Fluorescent Nuclear Track Detector (FNTD). The results of research have been described in more than 100 papers published in peer reviewed scientific journals.  He is also a co-author of 33 US patents. Member of the ISSDO and frequent presenter and session chair at international conferences.



Susana de Souza Lalic



Susana Lalic is currently a Full Professor at the Federal University of Sergipe, General Secretary of Brazilian Physics Society. Her academic accomplishments include serving as a Member of the Director Board of the Master Course in Protection Against Chemical, Biological, Radiological, Nuclear and Explosive Events at Tor Vergata University and being part of the Faculty Board of the Research Doctorate in Industrial Engineering - curriculum of Nuclear Engineering and Industrial Safety - of Pisa University. She is also an active member of several professional organizations, including the ISSDO. Prof. Susana earned her Ph.D. in Physics from the University of São Paulo in 2002. Her research expertise includes Condensed Matter Physics, Medical Physics, and material characterization, with a particular focus on biodosimetry, the development of luminescent materials such as MgB4O7 loaded polymers for 2D dosimetry, and Fricke gels for 3D radiation detectors, having published more than 70 peer-reviewed papers.


Francesco d’Errico


Francesco d’Errico is a tenured Full Professor of Nuclear and Biomedical Engineering, as well as of Medical Physics, at the University of Pisa (Italy). Francesco d’Errico started his academic career in 1996 with a professorship in Radiation Physics at Yale University (USA), where he is still a Fellow at Timothy Dwight College. He has joint/adjunct appointments at the University of Rome Tor Vergata, and at the Federal University of Sergipe (Brazil), where he was “Pesquisador Visitante Especial” (Special Visiting Scientist) within the program “Ciências sem Fronteiras”. Francesco d’Errico has performed and led research projects on advanced methods for nuclear safety and security, environmental monitoring, radioecology, biodosimetry, radiation detection/dosimetry/spectrometry supported in the US by NASA, NIH, NSF, NIH, DHS and DOE, and in Italy by Commission of the European Communities, Italian Ministry of University Research (MUR), Italian Nuclear Physics Institute (INFN).



Susanna Guatelli


Associate Professor Susanna Guatelli awarded a PhD in Physics at the University of Genova in 2006.  Since 2009 she is an academic of the Centre For Medical and Radiation Physics, University of Wollongong, Australia. Susanna is an international leading expert of Geant4 for applications in bio-medical physics, including in the development and characterisation of radiation detectors for radiotherapy Quality Assurance and radiation protection in Earth labs and space.  Since 2018, Susanna coordinates the Geant4 Advanced Examples Working Group and the Geant4-Med project, an international effort aimed to validate Geant4 for medical physics applications. Recent research interests include the  application of machine learning solutions to Monte Carlo radiation physics simulations to  solve medical physics problems. In 2021 Susanna was awarded with the Women in Physics Award of the Australian Institute of Physics, which celebrates female physicists that gave a significant contribution to research in physics.


Oswaldo Baffa


Oswaldo Baffa received his BSc in Physics, class of 1976, at the Instituto de Física e Química de São Carlos (IFQSC) of the University of Sao Paulo (USP), Brazil where he completed his master’s (MSc-1980) and Doctorate (DrSc-1984) both in applied physics.  He is full professor at the Department of Physics, FFCLRP, USP at Ribeirão Preto. He was Guggenheim Fellow and Fulbright Fellow.  He is a member of the Brazilian Physical Society, Sao Paulo State Academy of Sciences and Brazilian National Research Council (CNPq) fellow and visiting professor to the Department of Medical Physics at the UW-Madison. One of his lines of research is radiation dosimetry using different techniques (EPR, MRI, OSL and TL) and new materials (nanocomposites, amino acids, organic molecules, and gels) for archeological dating, clinical dosimetry, and industrial applications. He has published over 250 scientific papers with several collaborators in Brazil and abroad.

Sara della Monaca


Sara Della Monaca is a researcher at the Istituto Superiore di sanità in Rome. Her research supports have been mainly attained from projects of retrospective assessment of radiation dose in individuals exposed to ionizing radiation. Currently, she has a fifteen-year experience on the application of Electron Paramagnetic Resonance and Stimulated Luminescence for the detection of physical and biophysical indicators and markers of exposure.  She has  been involved in the EU projects SOUL and SOLO, epidemiological studies in South Urals with the long range goal of exploring the effects of prolonged low dose and low dose rate IR exposures, and in the Shamisen and Shamisen-sings projects, drawing the lessons from the Chernobyl and Fukushima accidents and other major nuclear accidents around the world in order to make recommendations for immediate and long-term response to radiation accidents, aiming to respond to the needs of affected populations while minimizing unnecessary anxiety.


Marco Caresana


Graduate in physics at the University of Pavia in 1989. At present he is serving as Associate Professor at the Department of Energy of the Politecnico di Milano. He is in charge of the academic course “Radiation Detection and Measurements”, as part of the master of science in nuclear engineering. He heads the Ionizing Radiation Metrology Lab of the Polytechnic, hosting two secondary standard calibration labs for photon dosimetry and 222Rn concentration in air. His main research activities are in the fields of radiation detection and measurements with particular focus on developing innovative instrumentation for personal and ambient dosimetry in mixed and pulsed radiation fields around high-energy accelerators. Since 2011 he is voting member of EURADOS and member of WG11. He served in the EURADOS council from 2016 to 2019 and was elected chair of the WG11 “High energy radiation fields” in 2017.

Andrea Chierici


Dr. Chierici is a dedicated research fellow at the University of Pisa's Department of Industrial and Civil Engineering, specializing in radioactive waste management within the EU Project PREDIS. Holding a Bc.S. (2013) and Ms.S. (2016) in Biomedical Engineering, he earned his Ph.D. in Nuclear Engineering (with honors) in 2019. Dr. Chierici conducted postgraduate research at Yale University, focusing on neutron detection technologies. He subsequently served as a research fellow at the University of Rome Tor Vergata, overseeing the EU Project RESIST and contributing to the NATO funded Project DEUSS. His expertise lies in innovative nuclear measurements, IoT, opto-electronics, and embedded programming for applications in dosimetry, nuclear safety, and environmental monitoring. Dr. Chierici is also a valuable member of the Laboratory of Nuclear Measurements at the University of Pisa.

Debora Siqueira Nascimento


Dr. Nascimento is a skilled postdoctoral researcher at the National Institute of Geophysics and Volcanology, specializing in gamma spectrometry analysis. She holds a B.Sc. in Medical Physics (2016) and an M.Sc. in Physics (2018) from the Federal University of Sergipe, Brazil. In 2023, she successfully defended her Ph.D. in Nuclear Engineering at the University of Pisa. During her master's, she conducted pivotal research on bubble detectors for linear accelerator scattered radiation measurement. Her Ph.D. work focused on developing novel materials for solid-state dosimeters. Dr. Nascimento's expertise led her to a postdoctoral role at the National Institute of Geophysics and Volcanology, collaborating closely with the University of Pisa. She is also a valued member of the Laboratory of Nuclear Measurements team at the University of Pisa.

Vladmir Vicha


Dr. Vicha is a scientist from the Institute of Experimental and Applied Physics IEAP CTU in Prague, Department of applied physics and technology and an experienced high school teacher of physics and mathematics. He is actively participating in the area of pixel detectors and their use in teaching physics, and is author of the book “Experiments Using Pixel Detectors in Teaching Nuclear and Particle Physics”.

Maria Ester Brandan


María-Ester Brandan is a University Professor at the Physics Institute of the National Autonomous University of Mexico, UNAM. With extensive expertise in experimental nuclear physics, radiation dosimetry, and medical physics, she has published over 140 scientific papers with an h-index of 30. She is a Fellow of the American Physical Society, the American Association of Physicists in Medicine, and TWAS, the Academy of Sciences for the Developing World. Brandan has held numerous leadership positions including President of the Nuclear Physics and Medical Physics Divisions of the Mexican Physics Society, Chair of the International Solid-State Dosimetry Organization (ISSDO) from 2010-2013, and current commissioner of ICRU, the International Commission on Radiation Units & Measurements. She has received several awards such as the Mexican Physics Society Medal for the Development of Physics in Mexico and the UNAM 2013 Premio Universidad Nacional for research in exact sciences. Additionally, she is the Deputy Editor of the Biomedical Physics & Engineering Express journal and created and coordinated the UNAM M.Sc. (Medical Physics) program for 20 years, which specialized physicists in medical applications.

Anatoly Rozenfeld


Distinguished Professor Anatoly Rosenfeld is a Director of Centre for Medical Radiation Physics University of Wollongong to which he was a founder in 2000. His main research interest and achievements are in a field of semiconductor detectors for medical dosimetry in radiation therapy, including particle therapy, space medicine for radiation protection of astronauts and radiation damage of electronics. 

Anatoly has published more than 500 peer review papers (>11000 citations , h-index 52)  and hold 18 granted patents on radiation detectors and actively involved in their commercialization including licencing of his inventions on Silicon On Insulator microdosimeters (SINTEF, Norway) and  MOSkinTM dosimetrs  (Electrogenics Lab Ltd),  as an example.   

He is an immediate past Chair of International Solid State Dosimetry Organization, Member of ICRU Committee for Microdosimetry Report,   Member of Space Medicine and Life Sciences Advisory Group of Australian Space Agency. For his achievement in medical dosimetry Anatoly received NSW Premier’s Award Outstanding Cancer Researcher of the Year 2022.


Col. Raffaele Zagarella


Raffaele Zagarella was born in Naples (Italy) in 1968 and graduated cum laude in Physics in 1992. In 1994, he joined the Army Corps of Engineers where he is still serving as a Colonel. After getting two II level Masters's in "Computer Science Systems Design" and "Strategic Sciences," he worked for a long time in radiation physics at the Joint Center for Military Studies and Applications in Pisa, achieving the title of "Radio Protection Adviser". Full member of the Italian Chemistry and Physics Society, he has carried out several works in radiation protection, some of which have also been published, especially on depleted uranium, dosimetric evaluation from NORM and radon monitoring. In addition, he is the Scientific Secretary of the AIRP High School of Radioprotection, lecturer of the CBRN Master at the University of Rome Tor Vergata and "subject expert" at the University of Pisa in the fields of Nuclear Measurements and Radioprotection.



José Fernando Diniz Chubaci


Prof. Chubaci holds an M.Sc. and Ph.D. from the Institute of Physics at the University of São Paulo, Brazil. He has spent almost 4 years as a research student at the Institute of Scientific and Industrial Research of Osaka University, Japan. Currently, he is a Doctor Professor - Lecturer at the Institute of Physics of the University of São Paulo and was a former Elected Member at Large of the ISSDO for 9 years. His research interests include radiation effects in insulators, radiation sensors, and thin film formation for mechanical, optical, electronic applications, and radiation sensors. He has over 70 publications in scientific journals and conference proceedings and 6 registered patents in new materials sensors. He has joined around 50 international conferences, and his publications have been cited over 800 times in the scientific literature.

Maurizio Marrale


Prof. Maurizio Marrale is Associate Professor of Applied Physics at the the Department of Physics and Chemistry "E. Segrè" of the University of Palermo. He is Director of the Specialty School in Medical Physics  at the same University. His research activities focuses on radiation dosimetry by means of electron paramagnetic resonance, thermoluminescence and magnetic resonance imaging and advanced techniques for radiological image analysis. 

He is co-author of over 90 papers in peer-reviewed scientific journals. He has received international awards such as the EURADOS  (European Radiation Dosimetry group) Young Scientist Award 2016. He is member of the Scientific Council of the International Association of Biological and EPR Radiation Dosimetry (IABERD) and voting member of EURADOS for University of Palermo. He is Associate Editor in several International scientific journals. 

Stefano Agosteo


Stefano Agosteo is a full professor in Nuclear Measurements and Instrumentation at Politecnico di Milano. His expertise lies in radiation dosimetry, microdosimetry, and neutron spectrometry. He has collaborated with the TERA program since 1992, contributing to the establishment of a hadrontherapy center in Pavia, Italy. His microdosimetry research focuses on assessing the radiation quality of hadrontherapy fields. Stefano has led various INFN research programs on BNCT, neutron spectrometry, and silicon microdosimetry. He chaired the MSc Course in Nuclear Engineering from 2010 to 2017 and currently serves on the PhD Council in Energy and Nuclear Science and Technology at Politecnico di Milano. As a corresponding member of the Istituto Lombardo Accademia di Scienze e Lettere, he actively contributes to the scientific community. Since 2022, he represents Politecnico di Milano in the BNCT@CNAO project's Steering Committee, which aims to install an accelerator-based neutron source for BNCT at CNAO. Stefano serves on the Editorial Board of Radiation Measurements and is a reviewer for multiple international journals.

Nicolas Wyrsch


Nicolas Wyrsch studied physics at ETH Zurich and obtained his Ph.D. from the University of Neuchatel in 1991. Since then, he is team leader in the laboratory of photovoltaics (PV-LAB) of the Ecole Polytechnique Fédérale de Lausanne (EPFL) and a lecturer for a course on “Large-area electronics: Material and devices”. His interests and main activities are focused on the digitalisation of the energy system, the integration of photovoltaic systems in the electric grid and the development of particle sensors and imagers based on hydrogenated amorphous silicon (a-Si:H). He collaborates with several academic partners worldwide to develop a-Si:H sensors for medical and dosimetry applications. He is the author and co-author of more than 200 scientific publications.


Riccardo Ciolini


Prof. Ciolini holds a master's degree (1998) and Ph.D. (2002) in Nuclear Engineering from the University of Pisa, specializing in Nuclear Power Plant Safety. As an Associate Professor since April 2018, he leads courses on "Nuclear Measurements and Instrumentation," "Physical Fundamentals of Nuclear Engineering," and "Radiation Protection" for the Master's program in Nuclear Engineering. Since 2019, he presides over the "Nuclear Engineering and Industrial Safety" curriculum within the Industrial Engineering Ph.D. program. His extensive research, based at the Nuclear Measurements Laboratory, encompasses neutron dosimetry, detector development, environmental radioactivity measurement, radiation protection, shielding, and nuclear power plant decommissioning. Prof. Ciolini is a Level 3 Radiation Protection Expert in the Italian Ministry of Labour and is affiliated with the INFN, Pisa section.

Giampaolo Roina


Gianpaolo Roina is a first-year student in the Ph.D. Course in Industrial Engineering – curriculum in Nuclear Engineering – of the University of Pisa (Italy). He obtained his Master’s degree in Nuclear Engineering in 2022 and his current research concerns the application of luminescent materials in Nuclear Safeguards by exploiting, in particular, their differential fading. The objective is the development of a passive, tamper-indicating device to timestamp a potential undeclared removal of radioactive materials from a storage area. This will provide an additional means to assure the continuing physical integrity of a safeguarded area or item during the period between two successive inspections.

Michael Holik


Dr. Holik is an engineer at the Institute of Experimental and Applied Physics IEAP CTU in Prague. He works at the Department of electronics and software as a senior designer of the data acquisition and signal processing electronics with focus on read-out interfaces for pixel detectors.