
INVITED LECTURES
Click on the presenter’s name to see the biography, and on the lecture's title to see the lecture's abstract.
Marko Andjelkovic

Marko Andjelkovic received Dipl-Ing. degree in Electronics from the Faculty of Electronic Engineering, University of Nis, Serbia, in 2008. In 2021, he has received Dr.-Ing. degree in the field of Fault Tolerance in Computing Architectures, from the University of Potsdam, Germany.
From 2010 to 2016 he was employed as a scientific researcher at the Faculty of Electronic Engineering in Nis, where he was working on the characterization of dosimetric properties of RADFETs and various commercial semiconductor components, and design of readout electronics for experimental evaluation of radiation detectors.
Since 2016 he is with IHP, where he is employed as a scientific researcher at the System Architectures department. His research is related to the characterization and modeling of radiation-induced effects in digital circuits, on-chip detection of radiation effects and other types of hardware faults, and design of fault-tolerant circuits and systems for ASIC and FPGA implementations.
He was involved in preparation and managing of national, bilateral and international (EU-funded) research projects. He has authored and co-authored 30 papers in peer-reviewed journals and more than 40 papers at peer-reviewed conferences, one book chapter, and one patent. Moreover, he serves as a reviewer in several reputable journals (Microelectronics Reliability, Microprocessors and Microsystems, IEEE Transactions on Device and Materials Reliability, IET Computers and Digital Techniques, Integration the VLSI Journal, Journal of Circuits, Systems and Computers), as well as at international conferences (ESREF, MIEL, DDECS, DATE).
On-Chip Particle Detectors for Self-Adaptive Integrated Circuits for Space Applications
Electronic systems employed in space missions are exposed to intense bursts of high-energy particles, such as heavy ions, protons and neutrons. If a single particle hits a sensitive transistor in an integrated circuit, data corruption or system failure may occur. With technology scaling it has become possible that a single particle hits multiple transistors, causing multiple errors. Thus, it is important to design electronic systems for space in such a way to ensure their sufficient robustness to radiation effects.
As the particle flux in space can vary over several orders of magnitude, the most efficient approach is to use the adaptive protection mechanisms, which are activated only in the case of increased radiation intensity. To achieve this, dedicated particle detectors are required for continuous monitoring of radiation intensity. A cost-effective solution involves integrating particle detectors on the same chip with the target design.
In this talk, an overview of different solutions for on-chip detection of high-energy particle strikes in space missions will be presented. Special attention will be given to the particle detection solutions investigated and developed at IHP. The talk will compare the analyzed detectors in terms of their performance and requirements for readout electronics, emphasizing the key advantages and limitation of each detector. In addition, the design concept of a self-adaptive fault-tolerant system for space will be presented.
Angel Ibarra

Angel Ibarra has a PhD in Physics from the Universidad Autónoma de Madrid. He has worked for more than 35 years in different aspects related to technological problems of fusion as an energy source, with special emphasis on materials and their response to radiation. For more than 15 years he has led the Fusion Technologies Division of the National Fusion Laboratory of CIEMAT. He has been responsible for the Spanish participation in the IFMIF/EVEDA project in the framework of the Bilateral Agreement between Europe and Japan for the Broader Approach to Fusion, was European coordinator of the Work Package of the Early Neutron Source (WPENS) for Fusion in the framework of the European Consortium EUROfusion. In 2021 he was appointed as Director of the IFMIF-DONES España Consortium.
Angel has published more than 200 scientific and is a member of several national and international committees.
Irradiation Facility Relevant For Fusion Materials: IFMIF-DONES
The International Fusion Materials Irradiation Facility – Demo Oriented Neutron Source (IFMIF-DONES) is a research infrastructure for irradiation of the materials to be used in a fusion reactor. The facility would provide a unique neutron source of energy spectrum and flux level representative of those expected for the first wall of future fusion reactors. At IFMIF-DONES neutrons will be produced in 7Li(d,n) stripping reaction with a D+ beam at an energy of 40 MeV impacting on a flowing liquid Li target.
Materials irradiation data under such conditions are of fundamental interest for the fusion community to consolidate the fusion reactors engineering design and licensing and to validate modelling tools for materials radiation damage. The facility will be also able to address some tritium technologies related experiments. Complementary to its role as an irradiation facility the design of DONES allows for the installation of an array of physics experiments which include a collimated neutron beam area and a nuclear physics oriented neutron time-of-flight facility as well as isotopes production and the development of different types of experiments relevant in different scientific and technological disciplines.
The facility is currently in its final design phase within the framework of the EUROfusion Consortium work programme and the Construction Phase just started in the proposed site in the Escúzar Metropolitan Park (located in the province of Granada, 18 km southwest from Granada city).
The talk will present an overview of the implementation, engineering design, and main irradiation characteristics of the facility.
Peter Hofvander

Peter Hofvander is a radiation physicist from Stockholm University. Since 1985 he has served in different positions at the Swedish Radiation Safety Authority and at present holds a position of a Senior Adviser at the Department for International Policies and Co-operation. Peter was a member of IAEA’s Radiation Safety Standard Committee between 2002- 2007. Since 2010 he has been a member of the Art 31 group of experts in radiation protection and public health, attached to the European Commission. From 2017 he chaired the UNSCEAR’s Expert Group on Occupational Exposure (EGOE) and is at present a member of UNSCEAR’s Ad Hoc Working Group on Sources and Exposure.
Evaluation of Occupational Exposure to Ionizing Radiation, UNSCEAR 2020/2021 Report, Annex D
This presentation provides an overview of the content of the report “Evaluation of occupational exposure to ionizing radiation”, which is the Annex D of the UNSCEAR 2020/2021 report, published in September 2022. UNSCEAR has been collecting and evaluating sources and levels of occupational exposure since 1975 and this evaluation includes assessments of individual and collective doses to workers and estimates of worldwide levels of occupational exposure for the time period between 2003 and 2014. The report also includes analysis of exposure trends. As in previous reports, the evaluation is done for different work sectors and subsectors, involving exposure to natural and human-made sources. The results are presented as annual averages over five-year periods and for the first time uncertainties are addressed. Data for the evaluation has been collected through UNSCEAR Global Survey of Occupational Radiation Exposure, from peer-reviewed literature and from different international organizations. For exposure to natural sources, the estimate of worldwide annual number of workers was approximately 12.6 million, of which 94% is employed in mining industry. The annual collective effective dose from exposure to natural sources was about 24,300 man Sv, and the average annual effective dose about 2 mSv. Due to lack of data, no evaluation was conducted for gas and oil extraction and for radon at workplaces, hence the figures are most likely underestimated. For human-made sources, estimate of the worldwide annual number of workers was about 11.4 million, the collective effective dose about 5,500 man Sv, and the average effective dose about 0.5 mSv. The medical sector dominates and account for about 80% of the workforce and 75% of the collective dose. Worldwide, the estimates for the period 2010-2014 are as follows: annual number of workers approximately 24 million and the average annual effective dose about 1.2 mSv.
Olivier Radakovitch

Olivier Radakovitch obtained a PhD in oceanography and was for twenty years assistant professor at the Aix-Marseille University (France), in the geochemistry team of the CEREGE laboratory. In 2017 he integrated the Research Laboratory on Radionuclides Transfer in Aquatic Ecosystem (LRTA) from the Institute for Radiation protection and nuclear safety (IRSN), which is the french public expert in research on and expertise of nuclear and radiation risks. He is now the scientific officer for research on the transfer or radionuclides in the environment for the Health and Environment division.
His research deals with the transport and behavior of particles, radionuclides and metals in aquatic environments and their effects on ecosystems. He worked on fluxes and biogeochemical cycles in the aquatic continuum (lake, river, aquifer and coastal zone) or at the interfaces (surface-groundwater, water-sediment or land-ocean). He has participated to more than 80 national and international programs, published 110 papers and he is member of various editorial boards.
Modelling the transfer of radionuclides in aquatic environments
The transfer of radionuclides in aquatic environments (lakes, rivers, oceans) is controlled by known physicochemical processes, but which remain, sometimes, difficult to reproduce correctly in numerical models. However, a good understanding and prediction of these transfers is essential because these environments have a high risk of being impacted during an accident, since all nuclear power plants are installed at the water's edge. If the effect of radioactive contamination of water on humans would be less than compared to that of a terrestrial environment, the consequences can be strong for the effects on ecosystems and the use of water (drinking water, irrigation, …). Likewise, remediation possibilities are much more complicated for sediments than for soils.
IRSN has developed several types of numerical models to respond to this challenge. They make it possible to simulate the fate of dissolved and particulate radionuclides in rivers or at sea, as well as their transfer to some organisms.
The presentation will describe the main processes taken into account in these models and will be based on various examples of work performed by the researchers from IRSN. They will cover a large spatial scale, from soil inputs in the watershed to sediment deposition at sea. Current studies to integrate new processes or adapt to crisis or monitoring needs will be discussed.