1997 Seaborg Award: Peter Armbruster

Award Statement C&EN (Page 1)

Since 1981, Armbruster and coworkers at GSI and other European institutes have created six new elements—elements 107 to 112—by bombarding bismuth or lead targets with high-energy beams of metal atoms. Last February, the multinational team synthesized one atom of element 112—the newest and heaviest of all elements—by fusing lead and zinc atoms.

One of the keys to the GSI team’s success has been development of a unique velocity filter, the Separator for Heavy Ion Reaction Products (SHIP). This filter separates the heavier, and therefore slower, products of fusion reactions from the projectiles that pass through the target.

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