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Preprints and Communications
 Here you can find JINR preprints and communications in pdf format starting from 1999. File size is given in bytes in round brackets.
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P13-2024-7 (3.778.776)
Pepelyshev Yu. N. et al.
Preliminary Computations for the Pulsed Reactor IBR-4. Basic Composition
By the end of the thirties, the IBR-2M reactor will be decommissioned.
The authors suggested that after the decommissioning of the reactor, they should not create an absolutely new neutron source,
which would require significant development work, but use positive technical solutions tested at other fast neutron nuclear facilities,
for example, IBR-2, IBR-2M, MBIR, BOR-60, BN-1200 and others. This is a conceptual vision of a new source, called IBR-4. Special attention
in IBR-4 was devoted to the issues of stable reactor dynamics. The article is based on calculations for the so-called basic composition
of the IBR-4, which considers the fundamental possibility of implementing positive technical solutions. In the next work, based on the basic composition,
the IBR-4 core and its immediate environment — all that makes it possible to increase the density of the thermal neutron flux on the extracted
neutron beams and at the same time fully ensure the reliability and safety of the reactor — will be considered. It is expected that the parameters
of the IBR-4 will be significantly higher than the parameters of the IBR-2M.
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