With Tony Brinkley, a researcher that he recruited in England, he studied photonuclear reactions with the Cockcroft-Walton accelerators, and bremsstrahlung with the electron synchrotron.
2.
In 1947, G . C . Baldwin and G . S . Klaiber observed the giant dipole resonance ( GDR ) in photonuclear reactions, and in 1972 the giant quadrupole resonance ( GQR ) was discovered, and in 1977 the giant monopole resonance ( GMR ) was discovered in medium and heavy nuclei.
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