Summary of HSN-1000 NUCLEAR EVENT DETECTOR
DDC’s HSN-1000 is a 14-pin, radiation-hardened Hybrid Nuclear Event Detector that senses ionizing radiation pulses from nuclear events and switches its output low in under 20 ns to initiate circumvention and recovery functions. It is guaranteed to operate through extreme dose rate, total gamma dose, and neutron fluence environments, is tested and certified per unit, offers an adjustable detection threshold and circumvention period, and is available in flat pack or DIP packages for protecting electronics from upset and burnout.
Parts used in the HSN-1000 Nuclear Event Detector:
- HSN-1000 hybrid detector (14-pin)
- Flat pack (F) or DIP (L) package options
DDC’s HSN-1000 radiation-hardened Hybrid Nuclear Event Detector (NED) senses 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.
The HSN-1000 is guaranteed to operate through three critical environments: ionizing dose rate [1012 rad(Si)/s], gamma total dose [106 rad(Si)], and neutron fluence [5 x 1013 n/cm2]. In addition, the device is designed to function throughout the transient neutron pulse. The hybrid’s discrete design ensures a controlled response in these radiation environments as well as immunity to latch-up. Each HSN-1000’s detection level and functionality are tested in an ionizing dose rate environment. A certificate is provided with each serialized hybrid, reporting the radiation test results and guaranteeing its performance. The device is also a lot qualified in the total dose and neutron environments to ensure performance.
The detection threshold of the HSN-1000 is adjustable within the range of 2 x 105 rad(Si)/s to 2 x 107 rad(Si)/s. This detection level can be preset by DDC or adjusted by the user. Less than a 30% variation in detection threshold can be expected over the entire operating temperature range.
Features:
- Detects ionizing radiation pulses
- 100% tested/certified detection threshold level
- Adjustable circumvention period
- 100% testable with built-in test
- Detection threshold adjustability
- Single +5V operation
- Radiation hardness guaranteed
- Compliant to MIL-PRF-38534 Class H
- Flat pack (F) or DIP (L) packages
Radiation Hardness Characteristics:
- Dose Rate (operate-through): 1 x 1012 rad(Si)/sec
- Total Dose: 1 x 106 rad(Si)
- Neutron Fluence: 5 x 1013 n/cm2
- Approximate Detection Range: 2 x 105 – 2 x 107 rad(Si)/sec
- DDC Specified, Controlled, Tested and Guaranteed
Source: HSN-1000 NUCLEAR EVENT DETECTOR
- What does the HSN-1000 detect?
It detects ionizing radiation pulses generated by a nuclear event. - How fast does the HSN-1000 switch its output after detection?
It switches its output from high to low with a propagation delay time of less than 20 ns. - What environments is the HSN-1000 guaranteed to operate through?
It is guaranteed to operate through ionizing dose rate of 1 x 1012 rad(Si)/s, gamma total dose of 1 x 106 rad(Si), and neutron fluence of 5 x 1013 n/cm2. - Is the detection threshold adjustable?
Yes, the detection threshold is adjustable within 2 x 105 rad(Si)/s to 2 x 107 rad(Si)/s and can be preset by DDC or adjusted by the user. - Does each HSN-1000 come with test certification?
Yes, each serialized hybrid is tested in an ionizing dose rate environment and supplied with a certificate reporting the radiation test results. - What supply voltage does the HSN-1000 use?
It operates from a single +5 V supply. - Can the HSN-1000 be tested in-system?
Yes, it is 100% testable with a built-in test. - What package types are available for the HSN-1000?
It is available in flat pack (F) or DIP (L) packages.
