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(FTP/31) Gas Dynamic Trap as a High Power Neutron Source for Accelarated Tests of Materials

A. A. Ivanov, E. P. Kruglyakov, Yu. A. Tsidulko

Budker Institute of Nuclear Physics, Novosibirsk, 630090, Russia

Abstract.  The urgency of design and construction of a 14 MeV dedicated neutron source which is absolutely needed to perform the material development and testing for future fusion power reactor is widely recognised. First of all, such a source makes it possible to collect information about mechanical, electrical and other properties of structural materials for DEMO design. About 10 years ago, material scientists have formulated criteria for the required parameters of such as source. In particular, 14 MeV neutron flux density was determined as 2 MW/m2. However, in recent years, this requirement was strengthened till 4-5 MW/m2. The paper presents different approaches to the problem how this increased neutron flux can be provided. It is shown that on the basis of the gas dynamic trap (GDT) concept the required neutron flux density can be achieved.

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IAEA 2001