Reaction Electron- and Gamma-Spectroscopy. Present Status and Prospects of its Future Development

Experimental procedures and the theoretical background in reaction electron- and gamma-spectroscopy are reviewed and some examples are presented. As an application of the technique in rather low energy reactions, the gamma-ray spectroscopy of proton capture where the nuclear reaction proceeds via an isobaric analogue state is described and its physical meaning is illustrated. Timing methods and several topics are mentioned as new research fields of this technique. (author)