US PATENT SUBCLASS 376 / 212
.~ By altering quantity of characteristic of fuel within critical area


Current as of: June, 1999
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376 /   HD   INDUCED NUCLEAR REACTIONS: PROCESSES, SYSTEMS, AND ELEMENTS

207  DF  WITH CONTROL OF REACTOR (E.G., CONTROL OF COOLANT FLOW) {12}
212.~ By altering quantity of characteristic of fuel within critical area {1}
213  DF  .~.~> Wherein control element includes a fissile material


DEFINITION

Classification: 376/212

By altering quantity or characteristic of fuel within critical area:

(under subclass 207) Subject matter wherein control of the fission reaction is realized (a) by reducing the effective quantity of fission fuel in the critical area, or (b) by effecting an in situ change in the physical state of the fuel.

(1) Note. The change of the physical state is brought about by the lowering of density, such as by melting.