The simultaneous formation of an @E01975@ and a @P04769@ as a result of the interaction of a @P04627@ of sufficient energy (> \(1.02\ \text{MeV}\)) with the field of a @N04237@.
Source: PAC, 1982, 54, 1533. (Glossary of terms used in nuclear analytical chemistry (Provisional)) on page 1547 [Terms] [Paper]