Materials Studies & Techniques
Dynamic material studies include understanding the nature of materials in extreme, transient conditions. This includes the physics of shocked metals, generating new ideas for diagnosing phase, understanding dynamic temperature, and the physics associated with high stress and strain rates, to name a few. Areas of research include development of new diagnostics for equation-of-state measurements; meeting the diagnostic needs of gun facilities; and expanded use and/or knowledge of pyrometry, x-ray diffraction, and other techniques.
Instruments, Detectors and Sensors
The development of
instruments, detectors, and sensors has always been a prominent part of SDRD research.
This topic area explores a wide range of applications, including, but not
limited to advanced radiation sensors; dual neutron-gamma detectors; handheld detectors;
and investigation of unique materials, such as uranium oxides, for solid-state
neutron detectors. Another major area of exploration is designing electronic
components and instruments for improved collection of velocimetry and other data.
The multiplexed photonic Doppler velocimetry (MPDV) system, which received a
2012 R&D100 award, began as an SDRD project in FY 2010.
Computational and Information Sciences
The vast amount of data now available in x-ray
and radiographic imaging applications and in velocimetry measurements is
driving a new effort to facilitate quantitative analysis of these data sets.
Researchers in this area have focused on developing more credible methods to
determine uncertainties in deconvolution, Abel inversion and x-ray spot
reconstruction of radiographic image data, as one example. New methods are
being developed to analyze and interpret large data sets generated by PDV and
MPDV. Two other important areas under this R&D topic are development of SCADA
security devices and secure communications.
NNSS perpetuates a legacy of deep experience and technical excellence at the
cutting edge of high-speed optical diagnostics, stretching from “Doc”
Edgerton’s earliest photography, through contemporary high-bandwidth
velocimetry techniques. Photonics projects focus on topics ranging from
leveraging more developed methodologies into novel diagnostic technologies to expanding
applications of ultrafast detection. For example, one FY 2013 project combined ultrafast
laser physics, state-of-the-art 3-D cameras, and an innovative hyperspectral
lens to attempt high-frame-number imaging with variable recording times pushing
into the THz regime.
For more information on the SDRD program, contact:
Howard Bender, SDRD Program Manager, (505) 663-2049