Development of a Low-cost, FPGA-based, Delay Line Detector for Satellite and Sounding Rocket Applications

Details Development of a Low-cost, FPGA-based, Delay Line Detector for Satellite and Sounding Rocket Applications Development of a Low-cost, FPGA-based, Delay Line Detector for Satellite and Sounding Rocket Applications

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm21a2005c&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SM21A-2005

Physics

Plasma Physics

[2407] Ionosphere / Auroral Ionosphere, [2494] Ionosphere / Instruments And Techniques, [7867] Space Plasma Physics / Wave/Particle Interactions, [7894] Space Plasma Physics / Instruments And Techniques

Scientific paper

The Goddard Thermal Electron Capped Hemisphere Spectrometer (G-TECHS) is an instrument concept intended for ionospheric applications. Siena College is working on a novel method of processing information from electron spectrometer anodes using delay line techniques and inexpensive COTS electronics. Electron spectrometers use a variety of techniques to determine where the amplified electron cloud falls onto a collecting surface. One traditional method divides the collecting surface into sectors and uses a single detector for each sector. However, as the angular and spatial resolution increases, so to do the number of detectors. Thus, there is an overall increase in power consumption, cost, size, and weight of the detector system. We are working on an alternative approach connecting each sector with a delay line built within the PCB material and using a pair of detectors (e.g., one at each end of the chain). This is a different approach from traditional delay line detectors which either use Application Specific Integrated Circuits (ASICs) or very fast clocks. In this paper, we report on the implementation and testing of a delay line detector using a low-cost Xilinx FPGA. Our technique is scalable to large sector numbers with very little impact on the system cost, mass, or power dissipation. The specifics of a prototype 32 sector system intended for a sounding rocket application will be discussed.

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