Reactivity control arrangement and fast reactor

Details Reactivity control arrangement and fast reactor Reactivity control arrangement and fast reactor

2011-01-18

2011-01-18

Palabrica, Rick (Department: 3663)

Induced nuclear reactions: processes, systems, and elements

Control component for a fission reactor

C376S332000, C376S334000, C376S261000, C376S262000

Reexamination Certificate

active

07873137

ABSTRACT:
A fast reactor including a reactivity control assembly including a reactor shutdown rod and neutron absorbers, a reactor shutdown rod drive mechanism, and units of neutron absorber drive mechanism. The reactor shutdown rod drive mechanism causes an inner extension tube to fall and release the reactor shutdown rod by a gripper section by turning off the power supply to a holding magnet at the time of scram. When grasping the neutron absorbers, an outer extension shaft is pulled up to allow both of the extension shafts to be inserted. After the outer extension tube gets to a handling head section of the neutron absorber, the outer extension shaft is pushed down to grasp the neutron absorber externally by latch fingers of the gripper section so that the neutron absorber can be moved up and down.

REFERENCES:
patent: 4045283 (1977-08-01), Noyes et al.
patent: 2005/0220251 (2005-10-01), Yokoyama et al.
patent: 02002987 (1990-01-01), None

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