A new method for the evaluation of the net intensity of each component of a partially resolved multiplet in a low energy photon (<100 keV) coincidence spectrum is demonstrated. The method assumes only that both members of a doublet have the same peak shape which need not be known. The method does not require additional measurements and is independent of peak shapes and timing problems. Numercal examples are given for resolving the Kα 1 and Kα 2 X-rays in coincidence with L X-rays from the decays of 10.4 h 165Er and 4.68 y 155Eu. © 1979.