The problem of unfolding the output data of a detection system is reviewed. Physical implications of the matrix representation of a detection system are discussed. An iterative method of solution is presented. The properties of the iterative method are investigated, and proof of convergence to the exact solution is given for two-dimensional, triangular, and positive definite type response matrices. The unfolding characteristics of the method are examined by applying the iterative process to the results of a neutron detection system. Limitations of the iterative method are discussed.
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