RDS-6s
1953 Soviet atmospheric nuclear test / From Wikipedia, the free encyclopedia
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RDS-6s (Russian: РДС-6с, from the encrypted Soviet codename for their atomic bombs Russian: Реактивный Двигатель Специальный, lit. 'special jet engine'; American codename: Joe 4) was the first Soviet test of a thermonuclear weapon that occurred on August 12, 1953, that detonated with a force equivalent to 400 kilotons of TNT.
Joe-4 RDS-6s | |
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Information | |
Country | Soviet Union |
Test site | Semipalatinsk Test Site, Kazakh SSR |
Period | August 1953 |
Number of tests | 1 |
Test type | Atmospheric test |
Device type | Fusion |
Max. yield | Total yield 400 kilotons of TNT (1,700 TJ) |
Test chronology | |
RDS-6 utilized a scheme in which fission and fusion fuel (lithium-6 deuteride) were "layered", a design known as the Sloika (Russian: Слойка, named after a type of layered puff pastry) or the so-called layer cake design, model in the Soviet Union. A ten-fold increase in explosive power was achieved by a combination of fusion and fission, yet it was still 26 times less powerful than the Ivy Mike bomb tested by the USA in 1952. A similar design was earlier theorized by Edward Teller, but never tested in the U.S., as the "Alarm Clock".[1]