Neutron activated switch

Details Neutron activated switch Neutron activated switch

1989-10-30

1991-05-14

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

376336, 25039001, 337306, G21C 1700

Patent

active

050154338

ABSTRACT:
A switch for reacting quickly to a neutron emission. A rod consisting of fissionable material is located inside a vacuum tight body. An adjustable contact is located coaxially at an adjustable distance from one end of the rod. Electrical leads are connected to the rod and to the adjustable contact. With a vacuum drawn inside the body, a neutron bombardment striking the rod causes it to heat and expand longitudinally until it comes into contact with the adjustable contact. This circuit closing occurs within a period of a few microseconds.

REFERENCES:
patent: 3783285 (1974-01-01), Parker
patent: 3897302 (1975-07-01), Klein
patent: 3970007 (1976-07-01), Klein
patent: 4880596 (1989-11-01), Barrus et al.
"Development of Self Actuated Shutdown Systems for LMFBR Plants", ANL/CT-74-10, pp. 34, 35, 44, 48, 49, 4/74.

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