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Space & Radiation Hardened – Nuclear Event Detectors

Space & Radiation Hardened – Nuclear Event Detectors

DDC's radiation-hardened, hybrid, Nuclear Event Detectors (NED) sense ionizing radiation pulses generated by a nuclear event, such as the detonation of a nuclear weapon, and rapidly switches its output from the normal high state to a low state with a propagation delay time of less than 20ns. The active low Nuclear Event Detection signal (NED) is used to initiate a wide variety of circumvention functions, thus preventing upset and burnout of electronic components. The NED output is also used to initiate both hardware and software recovery. This high-speed, 14-pin hybrid detector is used in electronic systems as a general-purpose circumvention device to protect memory, stop data processing, and drive power supply switches as well as signal clamps.

Part # Suppy Voltage Temperature Range Screening Level Nuclear Event Flag Detection Range
HSN-1000
+5V -55°C to +125°C 100% No 2 x 10^5 to 2 x 10^7 rad(Si)/sec
HSN-3000
+5V -55°C to +125°C 100% Yes 2 x 10^5 to 2 x 10^7 rad(Si)/sec