Experiences with Dynamic Testing Methods at the Molten-Salt Reactor Experiment

A series of reactivity-to-power frequency response measurements was made on the Molten-Salt Reactor Experiment. This was done for 233U and 235U fuels, for a range of operating power levels, at several points in the system operating history, and for several different test procedures. A comparison of experimental results with prior theoretical predictions confirmed the validity of the theoretical predictions. The test program included measurements using the pseudorandom binary sequence, pseudorandom ternary sequence, n-sequence, and the multifrequency binary sequence.