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The Very Energetic Radiation Imaging Telescope Array System (VERITAS) represents an important step forward in the study of extreme astrophysical processes in the universe. It combines the power of the atmospheric Cherenkov imaging technique…

Astrophysics · Physics 2008-11-26 T. C. Weekes

Imaging air Cherenkov telescopes are usually triggered on a coincidence of two or sometimes more pixels, with discriminator thresholds in excess of 20 photoelectrons applied for each pixel. These thresholds required to suppress night-sky…

Astrophysics · Physics 2008-02-03 G. Hermann , C. Köhler , T. Kutter , W. Hofmann

TARGET is an application specific integrated circuit (ASIC) designed to read out signals recorded by the photosensors in cameras of very-high-energy gamma-ray telescopes exploiting the imaging of Cherenkov radiation from atmospheric…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 L. Tibaldo , J. A. Vandenbroucke , A. M. Albert , S. Funk , T. Kawashima , M. Kraus , A. Okumura , L. Sapozhnikov , H. Tajima , G. S. Varner , T. Wu , A. Zink

It is anticipated that the forthcoming Cherenkov Telescope Array (CTA) will include a number of medium-sized telescopes that are constructed using a dual-mirror Schwarzschild-Couder configuration. These telescopes will sample a wide…

Instrumentation and Methods for Astrophysics · Physics 2015-09-07 Hugh Dickinson , Frank Krennrich , Amanda Weinstein

The ATLAS detector at LHC will require a Trigger system to efficiently select events down to a manageable event storage rate of about 400 Hz. By 2015 the LHC instantaneous luminosity will be increased up to 3 x 10^34 cm-2s-1, this…

Instrumentation and Detectors · Physics 2014-06-18 Eduard Simioni

TARGET~5 is a new application-specific integrated circuit (ASIC) of the TARGET family, designed for the readout of signals from photosensors in the cameras of imaging atmospheric Cherenkov telescopes (IACTs) for ground-based gamma-ray…

Instrumentation and Methods for Astrophysics · Physics 2017-06-21 A. Albert , S. Funk , T. Kawashima , M. Murphy , A. Okumura , R. Quagliani , L. Sapozhnikov , H. Tajima , L. Tibaldo , J. Vandenbroucke , G. Varner , T. Wu

We recently proposed a new approach for the real-time monitoring of particle therapy treatments with the goal of achieving high sensitivities on the particle range measurement already at limited counting statistics. This method extends the…

The ATLAS trigger has been used very successfully for the online event selection during the first part of the second LHC run (Run-2) in 2015/16 at a center-of-mass energy of 13 TeV. The trigger system is composed of a hardware Level-1…

High Energy Physics - Experiment · Physics 2019-08-13 Catrin Bernius

The ATLAS detector at CERN's Large Hadron Collider (LHC) will be exposed to proton-proton collisions from beams crossing at 40 MHz. At the design luminosity of 10^34 cm^-2 s^-1 there are on average 23 collisions per bunch crossing. A…

Instrumentation and Detectors · Physics 2014-11-18 David Berge

VERITAS is a new atmospheric Cherenkov imaging telescope array to detect very high energy gamma rays above 100 GeV. The array is located in southern Arizona, USA, at an altitude of 1268m above sea level. The array consists of four 12-m…

Astrophysics · Physics 2007-10-01 VERITAS Collaboration , T. Nagai , R. McKay , G. Sleege , D. Petry

MAGIC is a stereoscopic system of two 17m diameter Imaging Air Cherenckov Telescopes (IACTs) for $\gamma$-ray astronomy. Lowering the energy threshold of IACTs is crucial for the observation of Pulsars, high redshift AGNs and GRBs. A lower…

Instrumentation and Methods for Astrophysics · Physics 2014-04-17 J. R. García , F. Dazzi , D. Häfner , D. Herranz , M. López , M. Mariotti , R. Mirzoyan , D. Nakajima , T. Schweizer , M. Teshima

The Large Area Water Cherenkov Array (LAWCA) experiment focuses on high energy gamma astronomy between 100 GeV and 30 TeV. Invoked by the idea of hardware triggerless structure, a prototype of LAWCA trigger electronics is implemented in one…

Instrumentation and Detectors · Physics 2013-05-22 Yao Lin , Zhao Lei , Shang Lin-Feng , Liu Shu-Bin , An Qi

The next-generation very-high-energy (VHE) gamma-ray observatory, the Cherenkov Telescope Array, will feature dozens of imaging atmospheric Cherenkov telescopes (IACTs), each with thousands of pixels of photo-sensors. To be affordable and…

Instrumentation and Methods for Astrophysics · Physics 2015-03-19 K. Bechtol , S. Funk , A. Okumura , L. Ruckman , A. Simons , H. Tajima , J. Vandenbroucke , G. Varner

Particle identification at high rates is an important challenge for many current and future high-energy physics experiments. The upgrade of the COMPASS RICH-1 detector requires a new technique for Cherenkov photon detection at count rates…

Instrumentation and Detectors · Physics 2019-08-15 F. Nerling

Electron and photon triggers covering transverse energies from 5 GeV to several TeV are essential for signal selection in a wide variety of ATLAS physics analyses to study Standard Model processes and to search for new phenomena. Final…

High Energy Physics - Experiment · Physics 2015-11-16 Gabriella Pásztor

The Cherenkov Telescope Array (CTA) will be the next generation ground based observatory in very high energy gamma ray astronomy. The facility will achieve a wide energy coverage, starting from a threshold of a few tens of GeV up to…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 M. K. Daniel , M. Gaug , P. Majumdar

The COMPASS experiment at the SPS accelerator at CERN uses a large scale Ring Imaging CHerenkov detector (RICH) to identify pions, kaons and protons in a wide momentum range. For the data taking in 2006, the COMPASS RICH has been upgraded…

Instrumentation and Detectors · Physics 2008-11-26 C. Schill

Due to the huge interaction rates and the tough experimental environment of pp collisions at a centre-of-mass energy sqrt(s)=14TeV and luminosities of up to 10^34 cm^-2 s^-1, one of the experimental challenges at the LHC is the triggering…

Instrumentation and Detectors · Physics 2019-08-14 Johannes Haller

We have developed a new set of Application-Specific Integrated Circuits (ASICs) of the TARGET family (CTC and CT5TEA), designed for the readout of signals from photosensors in cameras of Imaging Atmospheric Cherenkov Telescopes (IACTs) for…

We give an overview of the current status and scientific goals of VERITAS, a proposed hexagonal array of seven 10 m aperture imaging Cherenkov telescopes. The selected site is Montosa Canyon (1390 m a.s.l.) at the Whipple Observatory,…