For a zero-power reactor, a new approach is proposed for extending the frequency response obtained by pile modulation experiment to account for dependency in space and energy, and the result is compared with the power spectral density of reactor noise.
While in a point reactor model, the square modulus of the reactor transfer function and the power spectral density are proportional to each other, this relation is no longer applicable to the generalized case.
Some quantitative discussions are made in this regard for the particular case of a bare homoge-neous reactor with mono-energetic neutrons.
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