K. McCarthy 1, R. Anderl 1,
H.-W. Bartels 2, A. Chekhonadskikh 3,
D. Davydov 4, B. Kolbasov 5, S. Morozov 2,
D. Petti 1, V. Shestakov 6, G. Smolik 1,
I. Tazhibaeva 6, A. Vurim 3
1 Idaho National Engineering and Environmental Laboratory (INEEL), Idaho
Falls, Idaho, USA
2 ITER Joint Central Team (JCT), San Diego, CA, USA
3 Institute of Atomic Energy of the Kazakstan National Nuclear Center
(KNNC), Kurchatov, Republic of Kazakstan
4 Bochvar All-Russian Research Institute of Inorganic Materials (VNIINM),
Moscow, Russia
5 Russian Research Center ``Kurchatov Institute'' (Nuclear Fusion
Institute), Moscow, Russia
6 Scientific Research Institute of Experimental and Theoretical Physics
of the Al'-Farabi Kazakstan State National University, Almaty, Republic of
Kazakstan
Abstract
The combined use of beryllium as plasma facing material and water as
coolant in ITER (International Thermonuclear Experimental Reactor) poses the
potential risk of significant hydrogen production under accident
conditions. In this paper we describe on-going R&D at several different
institutions worldwide to understand the beryllium/steam and beryllium/air
interactions for the ITER design. Our understanding of beryllium chemical
reactivity has progressed significantly during the ITER EDA (Engineering
Design Activity), allowing us to more accurately assess ITER postulated
accidents. We include a brief description of how these data were used in our
modeling activities for the safety analysis of ITER.
IAEA 1999