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The Water Cherenkov Detector Array (WCDA) is one of the major components of the Large High Altitude Air Shower Observatory (LHAASO). In the WCDA, 3600 Photomultiplier Tubes (PMTs) and the Front End Electronics (FEEs) are scattered over a…

Instrumentation and Detectors · Physics 2019-07-09 Shaoping Chu , Lei Zhao , Zouyi Jiang , Cong Ma , Xingshun Gao , Yunfan Yang , Shubin Liu , Qi An

The Data Acquisition System of the LZ experiment, the 10-tonne dark matter detector to be installed at the Sanford Underground Research Facility (SURF), will collect signals from 788 photomultiplier tubes (PMTs). Because the signals from…

Instrumentation and Detectors · Physics 2015-11-30 Eryk Druszkiewicz

A large sample of known and likely gamma-ray blazars has been monitored twice per week since late 2007 at 15 GHz with the Owens Valley Radio Observatory (OVRO) 40-meter Telescope. The sample contains about 1700 sources, including the…

High Energy Astrophysical Phenomena · Physics 2012-05-03 W. Max-Moerbeck , J. L. Richards , V. Pavlidou , T. Hovatta , O. G. King , T. J. Pearson , A. C. S. Readhead , R. Reeves , M. C. Shepherd

With present-day detectors in high energy physics one often faces fast analog pulses of a few nanoseconds length which cover large dynamic ranges. In many experiments both amplitude and timing information have to be measured with high…

The future of radio astronomy will require instruments with large collecting areas for higher sensitivity, wide fields of view for faster survey speeds, and efficient computing and data rates relative to current capabilities. We describe…

Instrumentation and Methods for Astrophysics · Physics 2019-05-08 James Kent , Jayce Dowell , Adam Beardsley , Nithyanandan Thyagarjan , Greg Taylor , Judd Bowman

The next-generation Very Large Array (ngVLA) is an astronomical observatory planned to operate at centimeter wavelengths (25 to 0.26 centimeters, corresponding to a frequency range extending from 1.2 to 116 GHz). The observatory will be a…

Radio telescopes that employ arrays of many antennas are in operation, and ever larger ones are being designed and proposed. Signals from the antennas are combined by cross-correlation. For $N$ antennas, the cost and power consumption of…

Instrumentation and Methods for Astrophysics · Physics 2016-04-19 Larry R. D'Addario , Douglas Wang

It has been widely acknowledged that Very Long Baseline Interferometry (VLBI) in the submillimeter wavelengths can make imaging observations of super massive black holes possible. The Sub-Millimeter Array (SMA) along with the James Clerk…

Instrumentation and Methods for Astrophysics · Physics 2012-10-23 Vinayak Nagpal

A number of new and planned radio telescopes will consist of large arrays of low-gain antennas operating at frequencies below 300 MHz. In this frequency regime, Galactic noise can be a significant or dominant contribution to the total…

Instrumentation and Methods for Astrophysics · Physics 2012-04-23 Steven W. Ellingson

Current and upcoming radio-interferometers are expected to produce volumes of data of increasing size that need to be processed in order to generate the corresponding sky brightness distributions through imaging. This represents an…

Instrumentation and Methods for Astrophysics · Physics 2023-01-18 Claudio Gheller , Giuliano Taffoni , David Goz

Since late 2007, we have been monitoring a large sample of known and likely gamma-ray-loud blazars at 15 GHz twice per week with the Owens Valley Radio Observatory (OVRO) 40 m Telescope. Our initial sample included the 1158 sources above…

We have developed an FX-architecture digital spectro-correlator for the Atacama Compact Array (ACA) of the Atacama Large Millimeter/submillimeter Array. The correlator is able to simultaneously process four pairs of dual polarization…

Instrumentation and Methods for Astrophysics · Physics 2015-06-03 T. Kamazaki , S. K. Okumura , Y. Chikada , T. Okuda , Y. Kurono , S. Iguchi , S. Mitsuishi , Y. Murakami , N. Nishimuta , H. Mita , R. Sano

Next generation radio telescopes will require orders of magnitude more computing power to provide a view of the universe with greater sensitivity. In the initial stages of the signal processing flow of a radio telescope, signal correlation…

Instrumentation and Methods for Astrophysics · Physics 2013-05-27 Ruonan Wang , Christopher Harris

We describe in detail the online data analysis pipeline that was used in the multi-messenger search for common sources of gravitational waves (GWs) and high-energy neutrinos (HENs) during the second observing period (O2) of Advanced LIGO…

High Energy Astrophysical Phenomena · Physics 2019-01-18 Stefan Countryman , Azadeh Keivani , Imre Bartos , Zsuzsa Marka , Thomas Kintscher , Rainer Corley , Erik Blaufuss , Chad Finley , Szabolcs Marka

The Large Observatory for X-ray Timing (LOFT) is one of the five mission candidates that were considered by ESA for an M3 mission (with a launch opportunity in 2022 - 2024). LOFT features two instruments: the Large Area Detector (LAD) and…

Instrumentation and Methods for Astrophysics · Physics 2014-08-29 C. Tenzer , A. Argan , A. Cros , Y. Favre , M. Gschwender , F. Jetter , A. Santangelo , S. Schanne , P. Smith , S. Suchy , P. Uter , D. Walton , H. Wende

Providing high data rates is one of the big concerns in visible light communication (VLC) systems. This paper introduces a data centre design that use a VLC system for downlink communication. In this work, RYGB laser diodes (LD) are used as…

Signal Processing · Electrical Eng. & Systems 2019-03-30 Osama Zwaid Alsulami , Mohamed O. I. Musa , Mohammed T. Alresheedi , Jaafar M. H. Elmirghani

The ATLAS Planar Pixel Sensor R&D Project is a collaboration of 17 institutes and more than 80 scientists. Their goal is to explore the operation of planar pixel sensors for the tracker upgrade at the High Luminosity-Large Hadron Collider…

Instrumentation and Detectors · Physics 2015-06-05 Christian Gallrapp

The Vera C. Rubin Observatory will produce an unprecedented astronomical data set for studies of the deep and dynamic universe. Its Legacy Survey of Space and Time (LSST) will image the entire southern sky every three to four days and…

The Murchison Widefield Array (MWA) is a next-generation radio telescope currently under construction in the remote Western Australia Outback. Raw data will be generated continuously at 5GiB/s, grouped into 8s cadences. This high throughput…

Instrumentation and Methods for Astrophysics · Physics 2015-05-18 R. G. Edgar , M. A. Clark , K. Dale , D. A. Mitchell , S. M. Ord , R. B. Wayth , H. Pfister , L. J. Greenhill