What’s New

While ITER takes shape, plasma physicists continue searching for answers to some rather tough questions. What causes a plasma to go from a weakly confined, turbulent state to a more defined and calmer state which is necessary for fusion to occur? Answering this question, scientists from the Princeton Plasma Physics Laboratory, the University of California and the Massachusetts Institute of Technology join forces to simulate tokamak plasmas.

With the help of a supercomputer located at the Oak Ridge National Laboratory (ORNL) called Titan, the research team uncovered for the first time the basic physics behind a plasma's transition into the high-confinement or H-mode.

Future simulations will study the transition of a plasma into H-mode at ITER scale. An issue of crucial importance is the right balance between the core temperature of a plasma and the temperature at its edge, which will have an effect on the size of the plasma.

These simulations are of unprecedented scale. Only with such high-performance computing resources such as Titan involving over 18,000 graphic processing units (GPUs) and close to 300,000 central processing units (CPUs), can problems of such great scientific complexity and importance be addressed.

See the full article on the ORNL website here.

Spain and Croatia have announced they will join forces in preparation to host DONES, the DEMO Oriented Neutron Source facility. The specialized installation will help scientists to test materials in an environment of neutron irradiation similar to that of a demonstration fusion reactor (DEMO), the intermediate step from ITER to a commercial fusion reactor.

A scientific collaboration framework between Japan and Europe—the Broader Approach—is helping to pave the way to DONES by validating key technological concepts. The engineering validation and engineering design activities of IFMIF (the International Fusion Materials Facility) aim at producing a detailed, complete and fully integrated engineering design of fusion-relevant neutron source by validating the continuous and stable operation of prototypes for each IFMIF subsystem.

Research into materials with neutron-resistant properties is one of the key tasks laid out in the European Roadmap, Europe's guiding document to addressing the scientific and technological challenges on the way to adding fusion energy to Europe's future energy mix.

It has not yet been decided where DONES will be located. For Europe, Spain and Croatia have now agreed to propose Granada, Spain, as host. Should this not be possible for technical reasons, the project would be hosted in Moslavačka Gora, Croatia. A technical group of experts from both countries that evaluated both sides declared the Granada site as fully operational and acknowledged that construction works could start immediately.

Read the full article on the European Domestic Agency website.

Two months after the announcement of a £86 million government investment in the UK's nuclear fusion research program, the UK's Atomic Energy Authority (UKAEA) met with more than 80 industry stakeholders on 16 January in Oxford to present opportunities for the nuclear industry to get involved and secure major contracts with ITER.

The government investment will support the UKAEA's plan to build a National Fusion Technology Platform at its Culham Science Centre. The platform will consist of two centres of excellence which, according to the Head of the UKAEA, Ian Chapman, would help in making commercial fusion a reality:

- the Hydrogen-3 Advanced Technology (H3AT) centre to research how to process and store tritium, with a direct link to ITER's development;
- and the Fusion Technology Facilities (FTF) to develop thermal hydraulic tests for components under fusion conditions. 

Both centres open up opportunities for British industry. Partnering with UKAEA will support industry in preparing to bid for forthcoming multi-million-pound ITER contracts. 

Read the full article on the UKAEA website here.