Keyword: Radiation

Briefs: Electronics & Computers
The "RadCNT" program use carbon-based transistors to study the interactions between ionizing and non-ionizing radiation.
Briefs: Materials
One particular semiconductor, gallium arsenide (GaAs), has received considerable attention due to its potential electronic applications.
Articles: Electronics & Computers
Learn how to protect electronics from the extreme environment of space.
Briefs: Mechanical & Fluid Systems
Metal matrix composites can electrically bridge the cracks that appear in semiconductor substrates and the composite grid lines.
Briefs: Aerospace

The U.S. Navy is constantly predicting future threats and contemplating new weapon technologies to counter them. One of those technologies is directed-energy (DE)...

Briefs: Defense
Predictions of these signals were difficult to make due to the complexity of the physics unleashed by the detonation.
Briefs: Sensors/Data Acquisition

Tracking and identifying radiation sources in the age of nuclear proliferation and well- resourced non-state actors is a national priority. Current neutron detection...

Articles: Aerospace

There are many advantages to utilizing active electronics versus the passive systems often used in aircraft applications, such as pressure, temperature, and flow sensors....

Articles: Electronics & Computers

There are a few open specifications in the embedded industry that have been used in the extreme environments of space over the years. These include VME, CompactPCI, OpenVPX, and MicroTCA. But, prime contractors such...

Briefs: Materials

Resistive Random Access Memory (RRAM) devices have drawn much interest in the last decade,...

Briefs: Materials

Joining of composites can be a challenging issue. If adhesives are used, the joints are permanent and cannot be undone. If they need to be undone, inserts are often used and these inserts increase cost...

Articles: Aerospace

In recent years there has been a trend towards the wider use of COTS (Commercial Off The Shelf) equipment in space missions. This trend has been mainly driven by the...

Articles: RF & Microwave Electronics

A century-old technology that scientists use to probe the ionosphere — the important atmospheric layer that can interfere with the transmission of radio waves — is getting...

News: Imaging

NASA's Langley Research Center has developed an aircraft-based turbulence and vortex detection system. Turbulence and vortices in the front-flight path are very dangerous for...

Briefs: Aerospace

An advance computed tomography (CT) system was recently built for the U.S. Army Armament Research, Development and Engineering Center, Picatinny Arsenal, NJ, for the inspection of...

Briefs: Imaging

An accurate view of the physical world is frequently vital. For example, rotary wing aircraft pilots must have knowledge of the terrain in order to safely fly...

Briefs: Photonics/Optics

In recent years, photoacoustic spectroscopy (PAS) has emerged as an attractive and powerful technique well suited for sensing applications. The development of high-power radiation sources and...

Briefs: Photonics/Optics

The purpose of this research program was to create and study novel luminescence particles (phosphors} capable of sensing and retaining the time-temperature information to which they were...

Briefs: Aerospace

Near-field radiation patterns are useful in diagnosing antenna array defects, measuring far-field antenna patterns where the far-field is prohibitively...

Briefs: Semiconductors & ICs

The purpose of this research was to investigate non-volatile memory device technologies that could be applied to reconfigurable electronics applications to provide power reduction,...

Articles: Aerospace

Using advances in the areas of multi-mode, closely coupled miniaturized radiators and artificially engineered materials, ultra-broadband, highly efficient,...

Briefs: Test & Measurement

The photovoltaic community is closer than ever to achieving ultra-high multijunction solar cell efficiencies (>50%). Subcells from III–V compound semiconductors are approaching ideal...

Briefs: Manufacturing & Prototyping

Managing the acoustic signature of military vehicles can play a critical role in the safety of soldiers. Low-frequency sounds propagate through the...

Briefs: Sensors/Data Acquisition
Isotope Beta-Battery Approaches for Long-Lived Sensors

The energy density of isotopes exceeds that of chemical energy storage by six orders of magnitude. Isotopes are used in many commercial applications, and are produced and available at modest prices. The power requirements of many sensors and communications equipment can greatly reduce the...

Technology Update: RF & Microwave Electronics
Small, Sensitive Antennas

Researchers create metamaterials by carefully designing and fabricating novel structures to exhibit patterns of electromagnetic properties—specifically, dielectric permittivity and/or magnetic permeability—at the micro-or nano-scale. This special spatial arrangement of elements ensures that the volumetric arrays...

Articles: Aerospace

It is fairly well known within the aerospace community that telemetry is moving from the traditional L-band and S-band frequency ranges up to C-band. It is widely understood that...

Briefs: Aerospace

Molecules have internal motions that are characteristic of their structure and identity. These motions can be studied by spectroscopy in different regions of the...

Articles: Aerospace

The recent tragic events at the Boston Marathon illustrate the growing and critical need for the detection of person-borne improvised explosive devices (PBIEDS). Such systems, in...

Articles: Aerospace

The requirements for smaller size, lower weight, and reduced cost in space and defense systems are driving demands for improved power-management solutions. Integrated DCto- DC converters that are designed for...