1. Forschungszentrum Rossendorf e.V., Postfach 510119, 01314, Dresden, Germany
2. Scientific and Engineering Centre for Nuclear and Radiation Safety of GOSATOMNADZOR of Russia, 14/23 Avtozavodskaya, 109280 Moscow, Russia
3. Framatome ANP GmbH, Freyeslebenstr. 1, 91058 Erlangen, Germany
4. Forschungszentrum Karlsruhe, Institute of Material Research I, PF 3640 76021 Karlsruhe, Germany