Nb-based superconducting tunnel junction detectors have been used for the registration of electrons following a nuclear gamma resonance (Mössbauer effect). Electrons were produced by a RhFe scatterer under irradiation by the 57Co(Rh) Mössbauer source. This observation demonstrates the role which can be played by superconducting tunnel junction detectors in the field of conversion electron Mössbauer spectroscopy and other types of electron spectroscopy.
