Dr. Tonči Tadić
Head of Croatian Fusion Activities
Coordinator of the DONES.HR Project Team
Ms. Zrinka Ujević
Head of the European Commission Representation in Croatia
H.E. Juan González-Barba
Ambassador of the Kingdom of Spain to the Republic of Croatia
The design for the early stage of JA DEMO divertor will be similar to the ITER divertor design, which means that mono-block type W will be used as plasma facing material with high conductivity Cu alloys being used as heatsink material. There have been several neutron irradiation tests on-going using available fission test reactors but, since transmutation effect like Re and Os productions in W...
Tungsten and Cu alloys are candidate armour materials for plasma-facing components, like the first wall and divertor, of ITER and future experimental nucler fusion power plant DEMO. Tungsten is selected for its high fusion temperature, for its unique resistance to ion and charge-exchange particle erosion and CuCrZr alloys for its high thermal conductivity together with good mechanical...
Small specimen test techniques (SSTTs) are commonly applied to material testing after neutron irradiation tests from the viewpoint of radiation protection and radioactive waste reduction, and without exception will be utilized to testing after 14 MeV fusion neutron irradiation due to very limited volume available in irradiation. This study will overview the types and characteristics of SSTT...
Within the EUROfusion Consortium, several initiatives are underway to prepare and support the operation of the Demo-Oriented Neutron Source (DONES). One key initiative is the development and standardization of Small Specimen Test Techniques (SSTT) for sub-size specimen geometries that are not currently covered by existing standards. Building on the activities initiated under the IAEA...
IFMIF-DONES (International Fusion Materials Irradiation Facility and DEMO-Oriented Neutron Source) comprises a deuteron accelerator, a liquid lithium target, and a test cell containing the High Flux Test Module (HFTM) used to irradiate material specimens. Small-scale specimens of various structural materials, including reduced activation ferritic-martensitic steels, are housed within the HFTM....
The IFMIF-DONES facility is predominantly considered as a scientific facility in the context of its primary purpose of high-flux fast neutron source for neutron irradiation of candidate materials' samples for the future DEMO fusion power plant, as well as in its secondary purpose of utilizing neutron flux and deuteron beam for Complementary Research. The IFMIF-DONES facility should be seen,...
The IFMIF-DONES facility in Granada is ESFRI single-site facility. The main objective of the DONES Programme is to develop a database of fusion-like neutron irradiation effects in the materials required for the construction of fusion power reactors, and for benchmarking of radiation response of materials. But in frame of DONES other experimental areas, including complementary experiments’ work...
This neutronics computational work aims to provide neutronics arguments underpinning the effective use of neutrons generated in DONES. Neutrons are produced by the deuterium-lithium (d-Li) nuclear reactions caused by the bombardment of accelerated up to 40 MeV deuterons on the liquid lithium target inside the DONES Test Cell (TC). The resulting neutrons have a wide energy spectrum up to 55 MeV...
The primary objective of the IFMIF-DONES Project is the testing and validation of fusion materials. The requirements from critical fusion experiments, such as the High Flux Test Modules (HFTM) for structural materials in fusion reactors, have driven the facility's overall design. The HFTM is crucial for qualifying structural materials for the future DEMO nuclear fusion reactor.
Given the...
Kyoto Fusioneering (KF) is advancing the field of fusion materials through internal research and major demonstration projects. With the establishment of integrated testing facilities, UNITY-1 and UNITY-2, KF is developing fusion power thermal and fuel cycle systems. These facilities simulate and evaluate material performance under conditions relevant to a fusion power plant in terms of...
Neutron energy spectra collimated by the Neutron Beam Tube and Shutter (NBT&S) at the entrance to the Complementary Experiments Room (CER) R160 are presented in this work, with particular investigation of the impact caused to neutron spectra by the materials of the High Flux Test Module (HFTM) and Other Irradiation Modules (OIMs). At KIT we develop two OIMs: BLUME (BLanket fUnctional Materials...
Thermal neutrons are a powerful tool for basic and applied science. Their main applications are radioisotope production, neutron imaging, metrology or activation analysis; but they can also be used to induce nuclear reactions allowing for research on nuclear structure, among others. At IFMIF-DONES the neutrons will be produced with a fast spectrum, but this can be duly moderated to provide...
Structure of light atomic nuclei is a object of renewed interest - part of it stems from the recent advent of ab initio calculations, but part is also due to the exotic configurations found at high excitation energies and/or in neutron-rich nuclei. Halo states, nuclear molecules and other exotic clustering are just some of the examples of such unusual quantum structures found and studied in...
We will present the status of the design of the TOF-DONES facility. This will include the (possuble) location of the beam lines, preliminary design of the collimators, dose calculations, shieldings, etc. We will also present the characteristics of the resulting neutron beams: absolute intensity, energy dependency, time (energy) resolution, spatial profile, etc; which can be used to determine...
The availability of suitable and well-qualified computational tools for radiation transport and activation analyses and the incorporated basic nuclear data for fusion technology applications is an essential cornerstone for the development of fusion technology towards the realization of a future viable and environmentally friendly energy source. The nuclear design will be steered by neutronics...
The European Spallation Source (ESS) under construction in Lund, Sweden, is set to become the brightest cold spallation neutron source in the world. Neutrons are produced by a 2 GeV proton beam hitting a tungsten target and moderated in cold and thermal moderators.
The scope of the ESS is to build and operate 22 world-leading instruments out of which 15 will be part of initial operations...
In radiotherapy, one of the basic pillars against cancer, the aim is to max- imize the damage to tumor cells while sparing the normal tissues surrounding the tumor as much as possible from irradiation. A great effort has been made in this direction, with the development of increasingly precise clinical devices producing the radiation beams and irradiating the patients. Nowadays, main...
An important part of medical applications of ionizing radiation are included in Nuclear Medicine. This is based on the use of radioisotopes as radiation sources and allows the both medical diagnosis and treatment of the major diseases with the greatest social impact, such as cancer, cardiovascular problem and brain diseases [1]. The two main challenges for the improvement and development of...
The International Fusion Irradiation Facility-DEMO Oriented NEutron Source (IFMIF-DONES) will be an experimental facility providing a high-energy and high-intensity neutron spectrum. Its primary purpose is to test materials under nuclear fusion irradiation conditions to qualify them for the future DEMO nuclear fusion power plant. Material specimens will be housed inside the High Flux Test...
The IFMIF-DONES facility will be dedicated to irradiating structural materials intended for the usage in future fusion reactors. However, this unique facility has the potential to support additional complementary experiments beyond its primary purpose, thereby broadening its utility to other research communities where neutrons can be applied. Neutrons are extensively used in neutron...
Neutron imaging constitutes a valuable technique for the examination of the internal structures of high density and/or metallic materials [1]. As an emerging non-destructive testing (NDT) technique, it offers several advantages over conventional methods involving X-rays or ultrasounds. A significant part of the development of a neutron scanner for NDT is the design and proper characterisation...
Tungsten is the prime candidate material to manufacture plasma-facing components for tokamak-type fusion reactors, due to its high melting point (Tm~3420 ◦C), mechanical strength and low sputtering yield. However, tungsten exposure to neutron fluxes from the deuterium (D)-tritium (T) plasma reaction generates additional lattice defects in the structure, such as dislocation loops and networks....
The International Fusion Materials-Irradiation Facility Demo Oriented Neutron Source (IFMIF-DONES) is a powerful neutron irradiation facility designed to study and qualify materials as part of the European roadmap to fusion-generated electricity. Its primary goal is to investigate the properties of materials under intense irradiation within a neutron field similar to that found in the first...
