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Control rods for Mock-Up Reactor

Control rods for Plum Brook's Mock-Up Reactor, which entered the core from above. In the Plum Brook reactor, the control rods entered from below. Three types of control rods were used in the Plum Brook reactor: two hydraulically controlled regulating rods to provide precise control of the reactor power level; three mechanically control reflector rods to provide a coarser level of control (the reflector rods had a quick release to allow them to drop and scram the reactor, if necessary); and five fueled shim rods, which performed the same function as the reflector rods.

 

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Credit: NASA

Image Number: PS63-0007

Date:

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Uploaded on August 8, 2013
Taken circa 1963