Nuclear Event Detectors


Maxwell’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
Screening Level
Nuclear Event Flag
Supply Voltage
Detection Range
Temperature Range
HSN-500
10%
No
+5V
2 x 10^5 to 2 x 10^7 rad(Si)/sec
-55°C to +125°C
HSN-1000
100%
No
+5V
2 x 10^5 to 2 x 10^7 rad(Si)/sec
-55°C to +125°C
HSN-2000
10%
No
+5V
2 x 10^5 to 2 x 10^7 rad(Si)/sec
-55°C to +125°C
HSN-3000
100%
Yes
+5V
2 x 10^5 to 2 x 10^7 rad(Si)/sec
-55°C to +125°C