NDLI: The autonomous, low-power data acquisition system for the ARIANNA antarctic neutrino detector array

Content Provider	IEEE Xplore Digital Library
Author	Kleinfelder, S.A.
Copyright Year	2012
Description	Author affiliation: Univ. of California, Irvine, Irvine, CA, USA (Kleinfelder, S.A.)
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 and real-time triggering circuitry, a CPU with solid-state data storage, and redundant 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 station 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 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 low threshold, in between 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.
Sponsorship	IEEE Nucl. Plasma Sci. Soc
Starting Page	1600
Ending Page	1606
File Size	3628682
Page Count	7
File Format	PDF
ISBN	9781467320283
ISSN	10823654
e-ISBN	9781467320306
DOI	10.1109/NSSMIC.2012.6551382
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Astrophysics experiment Data acquisition
Content Type	Text
Resource Type	Article

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