By J. Christiansen
This quantity offers with the interplay among moments of excited or radioactive nuclei and electromagnetic fields. The experimental ideas constructed for the commentary of this hyperfine interplay are ruled by way of the life of the nuc lear states in query. The dynamics of the interplay are mirrored by the point dependence of the spatial distribution of the radioactive decay radiation. primarily, the experiments yield info at the strength shifts and/or splittings of the nuc lear degrees. those amounts are made up our minds primarily by way of the manufactured from the nuc lear second and the electromagnetic box performing at the positioning of the nucleus. end result of the powerful reduce within the fields with distance, the measurements probe those fields inside a hugely localized sector based round the radioactive nuclei. certain experimental tools with quite a few ramifications have been constructed within the early sixties. within the interval which undefined, the most emphasis was once on excitation of short-lived nuclear states via pulsed particle accelerators, implantation of radioactive nuclei, and construction of polarized a-unstable nuclei through nuclear re activities with polarized neutrons or debris. The seventies have been a interval of fruit ful purposes directed to wide reviews of the moments of excited nuclear states at the one hand, and native inner fields at the different, leading to some distance attaining details on atomic and solid-state homes. The association of this subject matters quantity follows those major traces of research.