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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kleinfelder, S.A. |
| Copyright Year | 1963 |
| Abstract | The ARIANNA experiment will observe high-energy cosmogenic neutrino signatures via a large array of autonomous radio listening stations dispersed on the Ross Ice Shelf in Antarctica. Each station in the projected array of 900 stations will contain RF antennas, amplifiers, digitization, real-time triggering circuitry, a CPU with solid-state data storage, and redundant remote communications paths. Power is provided by both sun and wind. Two prototype stations have been installed, with a hexagonal array of seven stations, with each positioned 1 km apart, due for deployment over the next two seasons. The station's core data acquisition system includes four channels of analog sampling circuits that operate at 2 GHz and achieve over 11 bits of dynamic range. These circuits sample continuously over a 128-sample circular analog storage array. The circuits use a phase-locked loop to generate the 2 GHz internal sample clocking from a ~ 30 MHz external clock. Unlike most previous such designs, the high-speed sample clocking is completely synchronous and has very high timing stability, with about 1 ppm RMS jitter. The sampling circuits include the ability to produce a real-time trigger based on pattern-matching of the incoming waveform. Up to 72 patterns can be searched for in parallel, and each pattern looks at 8 consecutive samples, requiring that any or all of the samples be above a high threshold, below a separate low threshold, in-between the two thresholds, or a “don't care” condition. Each station also includes computing and solid-state event storage, environmental monitoring of voltage and power consumption, wind and temperature conditions, and both long-distance wireless to McMurdo Station and Iridium satellite communications. For the 2011-2012 austral season, about 1.4 million events were acquired between the second station's installation on December 21, 2011 and March 15, 2012. |
| Sponsorship | IEEE Nuclear and Plasma Sciences Society Computer Applications in Nuclear and Plasma Sciences (CANPS) Lawrence Berkeley Lab. Lawrence Livermore Nat. Lab. APS College of William and Mary Continuous Electron Beam Accelerator Facility NASA Defence Nuclear Agency Sandia National Laboratories Jet Propulsion Laboratory Brookhaven Nat. Lab. Lawrence Livermore Nat. Lab IEEE/NPPS Radiat. Effects Committee Defence Nuclear Agency/DoD Sandia National Laboratories/DOE Jet Propulsion Laboratory/NASA Phillips Lab./DoD |
| Starting Page | 612 |
| Ending Page | 618 |
| Page Count | 7 |
| File Size | 1910366 |
| File Format | |
| ISSN | 00189499 |
| Volume Number | 60 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Noise Arrays Data acquisition Prototypes Neutrino sources Ice shelf data acquisition Astrophysics experiment |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering |
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