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Scientific Research Project ArchiveBeam2RF:Design Calculation for High-Space-Charge Beam-to-RF Conversion Planned upgrades to Department of Energy accelerator facilities will require design and modeling of new radio frequency devices to drive the accelerators. This project will take advantage of very recent improvements in simulation technology to simplify the design process, while simultaneously improving the design precision.  Back to
Top This project involved work with EMA, Honeywell (Coon Rapids MN) and the Federal Aviation Administration on analysis of multipath errors in the Global Positioning System. The work done on this at Tech-X involved primarily analysis of soil microwave reflectivity data. Back to Top
Buffy: Scalable Message Tracing and Profiling Tool for Parallel Applications To fully utilize leadership-class supercomputers, application developers need tools to measure the communication between processors. We propose to develop such a tool, capable of running on thousands of processors. Back to
Top CORBA for Fourth Generation Languages The standard for object based networking is the Common Object Request Broker Architecture (CORBA). However, CORBA is not readily available for 4GL's such as Visual Numerics' PV-WAVE or Research Systems' Interactive Data Language (RSI-IDL), which are widely used by scientists and engineers for data visualization. With a grant from the U.S. Department of Energy (DOE), Tech-X Corporation is addressing this problem by developing a set of software tools to allow 4GL's to interoperate with CORBA. Phase I of this project resulted in examples of bringing CORBA into PV-WAVE and RSI-IDL, and prototypes of automatic tools for wrapping C++ stubs being generated by the CORBA translator. Learn more about CORBA-4GL, the resulting Tech-X Corporation code generation technology. Back to Top
ELVIS Endless Learning Visual Information Space ELVIS is a Web-based visual information space designed for educators to easily search, gather, add and share documents in real-time or asynchronously. Navigating groups of documents and people is as simple as going to a different floor or room in the space. ELVIS can host topic-specific discussions, making it ideal for educational meetings, and users can communicate with one another while searching for information and posting their own documents. Learn more about ELVIS. Back to Top
Direct Numerical Simulation of ICRF Wave-Particle Interaction Traditional, linear RF theory is not valid when nonlinearities play a role, such as the launch and absorption of ion Bernstein waves. At the expense of being more computationally demanding, direct numerical simulation retains more physics, including nonlinearities, and therefore has broader validity. With a DOE grant, Tech-X Corporation is upgrading the open-source particle-in-cell (PIC) code VORPAL so that it can used for ICRF wave-particle simulations, using direct PIC simulations of ICRF wave-particle interaction to complement traditional, linear RF theory in areas such as antenna coupling, absorption of ion Bernstein and lower-hybrid waves. Direct calculation of the dielectric and quasilinear tensors is being used to improve the analytic approximations used in linear RF theory. Discover VORPAL, an object-oriented C++ framework for 2- and 3-D parallel electromagnetic simulation of charged fluids and particles on a structured grid. FPGA: Software Tools for Advanced Accelerator Control and Instrumentation Modules Using Programmable Logic This project will provide software tools for facilitating the programming of advanced electronic controllers. Such tools should address the automation requirements of future high technology projects by. Back to
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GRIDL: Grid-Enabled Interactive Data language for Astronomical Data Grid technologies provide a valuable solution for data intensive scientific applications but are not readily available for astronomical data and Interactive Data Language (IDL) widely used in astronomy. There is a need for tools allowing IDL and astronomical data to interoperate with Grids. Tech-X Corporation proposes to develop a set of tools, GRIDL, for accessing and manipulating of distributed astronomical data via IDL clients. GRIDL will automate generation of the IDL clients of Web Services for analysis and visualization of astronomical data and provide services for running parallel and serial IDL processes on Grids facilitating astronomical data analysis. In Phase I we will develop a prototype of GRIDL working with Flexible Image Transport System (FITS). Based on the mapping of FITS data types to the Web Services Definition Language, we will implement a prototype Web Service with an IDL client for accessing remote FITS data and develop a prototype Web Service for running parallel IDL processes on a Grid. Our approach is based on the ability IDL to call external C and Java and the Grid interoperability with these languages. In Phase II we will fully implement the GRIDL and include other data formats common in astronomy. High-Fidelity Simulations of Fixed-Field Alternating Gradient Accelerators Fundamental advances in experimental nuclear physics will require cost-efficient acceleration of intense electron beams. Well-tested software is being enhanced to enable quantitative simulation and design of these next-generation electron accelerators.
HPDA: High Performance Data Analysis for Sun-Earth Connection Missions The Interactive Data Language (IDL) is a standard tool used by many researchers in observational fields. Present day Sun-Earth Connection missions like RHESSI or SOHO, or future missions including the Solar Dynamics Observatory (SDO) analyze their data almost exclusively in IDL. However, the increasing amount of data produced by these missions, and the increasing complexity of image processing algorithms, requires higher computing power. Cluster computing is a cost-effective way to increase the speed of computation, but algorithms have to be modified to take advantage of parallel systems. Enhancing IDL to work on clusters gives scientists access to increased performance in a familiar programming environment. In this project, Tech-X develops tools that enable IDL to profit from cluster systems. These tools will allow IDL applications to run in parallel in a cost efficient way. Finally, the parallelization will require no significant modifications of the original programs. PICA: High-Order Particle-in-Cell Algorithms for Laser Plasma Simulations Future generation high-energy particle accelerators, used to study the fundamental nature of matter, will likely include laser-plasma components. Well-tested software is being enhanced in this project to enable quantitative simulation and design of these next-generation plasma accelerators. Back to
Top WANDS: Real Time, Secure, and Fault Tolerant Discovery for Publish-Subscribe Middleware in a WAN Environment Tech-X Corporation proposes to lead an effort together with PrismTech Corporation and Vanderbilt University to resolve the current deficiencies of Data Distribution Service (DDS) by developing a discovery framework with integrated information assurance and advanced QoS capabilities. This discovery framework will enable DDS-based systems to adaptively utilize different discovery strategies (including different protocols and mechanisms) that are best suited for context-related system QoS requirements and environment constraints. We will also implement key discovery strategies to enable DDS for real-time and fault-tolerant systems over a variety of WANs. To ensure acceptance of our proposed framework and maximum aspects return of DoD investment, we will work within the OMG's standardization process to ensure the interaction between DDS and the discovery framework is defined by an open specification. We will also ensure that our enhancements to DDS are supported in PrismTech's standards-compliant OpenSplice implementation of DDS. SyneSteer: User Friendly Steering and Diagnostics for Modeling Space Charge in Circular Accelerators Space charge-self-consistent interactions between particles in a beam-is suspected of adversely affecting many high-energy accelerators. However, computer codes to model circular accelerators do not presently include space charge effects. With a grant from the DOE, Tech-X Corporation is implementing a state-of-the-art space charge model from the beam physics community into simulation codes for circular accelerators. This project will wrap the necessary space charge subroutines used in a specific circular accelerator simulation code and add concise, canonical interfaces and diagnostics to this simulation code, then demonstrate the usefulness of the improved code by using it to model a well-known circular accelerator. Back to Top VpMHD: Fluid Modeling for High Energy Density States Created with High Velocity Plasmas High energy density physics (HEDP) has been identified by the Department of Energy as a primary area of research in fusion energy. Computer simulation is a main tool for studying HEDP, but all current codes lack either some physics required for complete modeling or computational techniques necessary for high-performance computing. This project will improve an existing parallel code framework by implementing the necessary physical models into it, so that numerical investigations can be performed leading to a better understanding of HEDP. Back to
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