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Line 3: == History and Development == [[File:~~PAC-Detector-Relation~~Koinzidenzdetector.png\|thumb\|right\|Coincidence measurement in simplified depiction.]] PAC goes back to a theoretical work by Donald R. Hamilton <ref>Donald R. Hamilton: On Directional Correlation of Successive Quanta. In: Physical Review. Band 58, Nr. 2, 15. Juli 1940, S. 122–131, doi:10.1103/PhysRev.58.122</ref> from 1940. The first successful experiment was carried out by Brady and Deutsch <ref>Edward L. Brady, Martin Deutsch: Angular Correlation of Successive Gamma-Ray Quanta. In: Physical Review. Band 72, Nr. 9, 1. November 1947, S. 870–871, doi:10.1103/PhysRev.72.870</ref> in 1947. Essentially spin and parity of nuclear spins were investigated in these first PAC experiments. However, it was recognized early on that electric and magnetic fields interact with the nuclear moment, providing the basis for a new form of material investigation: nuclear solid-state spectroscopy.

Perturbed angular correlation: Difference between revisions