Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Hank Kosmata arrived in Hanford in January 1954 after graduating from the University of Utah with a degree in chemical engineering. Kosmata helped construct the K Reactor before he lawas assigned to “Reactor Design Analysis,” a team of physicists, mathematicians, and mechanical engineers that were tasked with designing a new, re-circulating reactor. After a year of planning, Kosmata and his team finalized the basis of what would become the “New Production Reactor,” or N Reactor.

Hank Kosmata’s Timeline
1954 Jan Arrived at Hanford.

Related Profiles

Leo James Rainwater

Hanford, WA

Leo James Rainwater was an American physicist and winner of the 1975 Nobel Prize in Physics.  As a graduate student at Columbia University, Rainwater assisted the Manhattan Project through research in the Substitute Alloy Materials (SAM) Lab.

Hood Worthington

Research & Development/300 Area

Worthington worked at the 300 Area at Hanford during the Manhattan Project. 

Frank Johnson

Hanford, WA

Laird Wallace

Hanford, WA