1980 Seaborg Award: Arthur M. Poskanzer

Award Statement C&EN (Page 12)

Poskanzer received his Ph.D. in 1957 from Massachusetts Institute of Technology.

He and his colleagues performed the first differential recoil study, and, later, the first counter study of nuclear fragmentation. In the area of more relativistic heavy-ion reactions, he obtained the first results on central collisions, which led to the nuclear fireball and coalescence models that describe the first stages of relativistic nuclear collisions.

He developed the first ΔΕ-Ε-time-of-flight technique for Ζ and A identification—a procedure that is standard practice today. He has contributed much to methods for direct atomic mass measurements of short-lived nuclei. He is also central in the development of a relatively low-energy beam line for heavy-ion beams at the Bevalac accelerator at LBL.

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