Fuel assembly for a pressurized water nuclear reactor

Details Fuel assembly for a pressurized water nuclear reactor Fuel assembly for a pressurized water nuclear reactor

1984-09-25

1987-03-24

Behrend, Harvey E.

Induced nuclear reactions: processes, systems, and elements

With control of reactor

Spectral shift

376173, 376435, G21C 332, G21C 700

Patent

active

046524169

ABSTRACT:
Fuel assembly for a pressurized water nuclear reactor, comprising a peripheral zone (1) consisting of a first group of rods (2) containing mainly enriched uranium oxide and a central zone (4) consisting of a second group of rods (5) containing mainly plutonium or uranium depleted in fissile uranium. The rods of the first zone (1) are spaced sufficiently so that the neutrons are slowed down to the thermal region. The rods of the second zone (4) are spaced by a distance which is appreciably smaller so that the neutrons produced in this zone (4) are in the high-energy region. The invention applies, in particular, to nuclear reactors with spectral shift.

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patent: 3629066 (1971-12-01), Andersson et al.
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patent: 3957575 (1976-05-01), Fauth, Jr. et al.
patent: 4059484 (1977-11-01), Bupp et al.
patent: 4251321 (1981-02-01), Crowther
patent: 4324618 (1982-04-01), Schluderberg
patent: 4495136 (1985-01-01), Camden, Jr. et al.

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