Abstract:The proliferation of weapons of mass destruction such as nuclear missiles and dirty bombs is a serious threat in the world today. Fast-neutron detectors are an important tool in monitoring the proliferation of nuclear weapons. Discrimination between fast neutrons and gamma rays is typically… more
Abstract:While substantial advancements have been made in realizing tube based large area detectors such as the Large Area Picosecond Photo-Detector (LAPPD), there is widespread agreement in the cathode community that a higher QE bialkali cathode is possible, and that the present understanding is largely… more
Abstract:…densities. Toward this end we intend to undertake the development of novel optical coatings that will simultaneously provide the necessary protection and maintain the optical performance of coated components to the desired levels. The significant expertise of Radiation… more
Abstract:The goal of this program is to develop a process for producing ceramic materials with properties approaching or, possibly in some aspects, exceeding those of single crystals. Ceramic processing provides important benefits including lower cost, higher yield, relaxed constraints on size and shape,… more
Abstract:In the event of an intentional or accidental release of ionizing radiation, it will be critical to have rapid triage assessment tools to evaluate the health of mission-critical personnel and to make effective use of available medical and emergency resources. However, assessment… more
Abstract:… such as oil- or coal-based electricity, solar energy must be captured and converted cost-effectively. Novel photovoltaic materials and their innovative manufacturing will reduce the net costs of solar energy production and increase energy productivity. Radiation Monitoring… more
Abstract:An important type of water pipe is the Prestressed Concrete Cylinder Pipe (PCCP). There are thousands of miles of PCCP installed in the US in sections with length up to 20 feet and diameter for 2 to 14 feet. The large size of the pipes, the thickness of the concrete (up to 10 inches) and the… more
Abstract:The proliferation of weapons of mass destruction (WMD) is a serious threat. Preventing the spread of these nuclear weapons has reached a state of heightened urgency in recent years. Neutron detection is an important component of the overall detection techniques used in identifying WMDs.… more
Abstract:… of the signal waveforms not necessary of other types of materials, and this program solves this by implementing an adaptable framework from which to develop new instruments. The unit developed in this Phase-II program can implemented for nuclear material security, … more
Abstract:…is of high-quality material in hours and allows creation of unconventional compositions. Resulting sensors will be coupled to photodetectors to realize high-efficiency thermal neutron detectors with high gamma/neutron discrimination for effective operation in mixed radiation… more
Abstract:…, a WBG compound semiconductor with aluminum concentration of 60% to 90%. The ~2-eV band-gap energy of this material is engineered to match the emission spectrum of both CLYC and CeBr3. The high band-gap of AlGaAs also provides much lower dark noise and better radiation… more
Abstract:To address issues of sub-optimal performance of current X-ray CT scanners used by the first re-sponding providers to expedite diagnosis and triage, we are developing a novel scintillator that offers a unique promise to achieve high-sensitivity, high-resolution X-ray imaging through its integration… more
Abstract:The ideal semiconductor detector for the nuclear non-proliferation application should have good energy
resolution, high detection efficiency, compact size, light weight, easy portability, low power requirements
and low cost. In the proposed effort, we plan to continue our development of thallium… more
Abstract:The ideal semiconductor detector for nuclear monitoring should have good
energy resolution, high detection efficiency, compact size, light weight, easy
portability and low cost. In the proposed effort, we plan to develop a detector
module for nuclear monitoring based on thallium bromide (TlBr), a… more
Abstract:… be a very challenging task. Conductive POCO graphite foam, pioneered by ORNL in the late1990s, was initially thought to offer a promising solution to this beam stop problem. Graphite foam, available at density from 0.1 to 0.9 g/cc, certainly increases the radiation length as… more
Abstract:… ligaments, where the ligaments comprise highly thermally conductive graphite. The graphite ligament material is over 4 times the conductivity of copper. A preliminary target for this Phase I demonstration, assuming a core thickness of 4.8mm, would be a radiation length of… more
Abstract:…antages of using diamond detectors in this application are: (i) the use of simpler water-cooled systems and greater thermal stability; (ii) faster response with low noise, capacitance, and leakage current; and (iii) much longer lifetime because of its excellent radiation… more
Abstract:The US Navy, Naval Surface Warfare Center (NSWC) plans to upgrade its facilities at the Acoustic Research Detachment (ARD). Part of this upgrade includes installation of volumetric measurement arrays to characterize the radiated acoustic signatures of scale submarine models. At… more
Abstract:… depth resolution chemical analysis in real time during the electrochemical cycling of the batteries. Currently available analytical techniques are extremely expensive, time consuming, labor-intense, involving very large equipment, e.g., synchrotron radiation or ultra… more
Abstract:… systems is estimated at $100M. This includes retrofitting a subset of nucleonic gauging systems in existing markets and new markets in semiconductor QC and fiberglass product QC. These markets see the benefits of THz imaging being the use of non-harmful radiation,… more
Abstract:…. This will pave the way to better EO sensor designs and more robust detection and classification algorithms. Making high fidelity models and realistic simulations possible is the fundamental theory derived from numerous investigations into the details of radiative transfer… more
Abstract:…s that can be scaled to produce high output peak powers within the blue/green wavelength band. The proposed system will utilize nanostructure quantum wavefunction engineering for gain material designs having extended excited state lifetimes and suppressed non-radiative processes… more
Abstract:… System (RTOS) and user processes under various operating scenarios, such as multitasking, interrupt handling, user and kernel mode switching. The formal verification will be done assuming execution on the PowerPC 750 architecture that is implemented in the radiation-hardened… more
Abstract:… procurement overhead and recognizing the mission strategic importance of developing modular power electronics for interfacing the battery to the spacecraft bus, APEI, Inc. is proposing to develop a novel multi-module, inherently scalable, high power density, … more
Abstract:ABSTRACT: Auriga will complete the development of an innovative linearized K-band High Power Amplifier (HPA) in 24 months with one additional month for the final report. This innovative approach is expected to bring revolutionary performance (close to 40% PAE under QPSK). Auriga"s HPA will… more
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