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Operation Greenhouse 1951

Thermonuclear weapon component tests — first boosted fission devices

Year
1951
Tests
4
Max yield
225 kt
Hiroshimas
15
Films
1

Four tests (Dog, Easy, George, Item). George tested the first thermonuclear fusion boosting — a crucial step toward the H-bomb. Item was the first boosted fission weapon. The 225 kt yield was double what was predicted.

Location
Enewetak Atoll, Pacific Proving Grounds
Country
USA
Coordinates
11.5, 162.2 · view on map →