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historical-technology
The bhangmeter is a non-imaging radiometer developed at Los Alamos in 1948 to detect and measure atmospheric nuclear detonations by analyzing the characteristic double-flash signature of visible light emitted during nuclear explosions. The device became standard equipment on US reconnaissance satellites and KC-135 aircraft, later incorporated into GPS satellites since 1980 for nuclear treaty verification.
nuclear-detection
radiometer
sensor-technology
nuclear-weapons
treaty-verification
satellite
military-technology
historical
Bhangmeter
Los Alamos National Laboratory
Hermann Hoerlin
EG&G
Frederick Reines
Operation Sandstone
Operation Buster-Jangle
Operation Tumbler-Snapper
Partial Test Ban Treaty
Vela satellites
Tsar Bomba
Vela incident
GPS