JRC scientists in collaboration with two Swedish universities; the Örebro University and the Chalmers University of Technology have built and tested for the first time artificial diamond as fission-fragment detector with a timing resolution better than 120 ps (1.2 × 10-10 s). Artificial diamonds are industrially produced and allow unrivalled timing resolution for fission fragments while being affordable. Using such a detector in the VERDI time-of-flight spectrometer, presently under construction at the JRC-IRMM, will allow fission yield measurements with excellent mass resolution and unprecedented efficiency.
The JRC in Geel is contributing to increase nuclear safety by providing the technology to determine highly radioactive waste and the nuclear reaction data, which is essential in risk and safety assessment. More accurate measurements not only bring more reliability but have also an impact on the cost effectiveness as they provide more precise data on the safety margins that are needed. The systems and tools are then better chosen in order to guarantee the safety and the security of nuclear applications.
Read more in: S. Oberstedt, R. Borcea, T. Bryś, Th. Gamboni, W. Geerts, F.-J. Hambsch, A. Oberstedt, and M. Vidali: "Artificial diamonds as radiation-hard detectors for ultra-fast fission-fragment timing", Nucl. Instrum. Meth. A714 (2013) 31-37