FAST PULSE REACTOR WITH REACTIVITY MODULATION Russian patent published in 2017 - IPC G21C1/02 G21C7/08 

FIELD: physics, nuclear physics.

SUBSTANCE: invention relates to conversion of nuclear energy. Fast pulse reactor comprises a core, reactor housing (5), a reactivity modulator, protective shield (4). Core is placed into reactor housing (5). Reactivity modulator enveloping the core throughout the height is installed behind reactor housing (5) coaxially with it and consists of two parts, movable and fixed (8) ones. Fixed part of the reactivity modulator is made of one neutron reflector. Movable part of the reactivity modulator is made of metal cylindrical shell (6) with a pad of neutron absorber (7) and has insert (1) of a fissile material with the height of the whole height of the core and of the whole thickness of metal cylindrical shell (6) of the movable part of the reactivity modulator in the azimuthal direction. Insert alternates with the pad of neutron absorber (7). Movable part of the reactivity modulator is located between reactor housing (5) and reactivity modulator fixed part (8) with a gap relative to them.

EFFECT: obtaining more powerful and short pulses in the reactor.

4 cl, 2 dwg