On a various noise source reconstruction algorithms in VVER-1000 reactor core.

Highlights: [•] A sensitivity analysis of unfolding methods to different parameters is done. [•] ISM is proposed to reconstruct the noise source of type vibrating absorber. [•] Four algorithms are used to solve the system of equations in the inversion method. [•] The neutron noise due to a new defined noise source (ILFAIP) is calculated. [•] We find that the scanning method is a reliable algorithm for source reconstruction. [Copyright &y& Elsevier]