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The Cherenkov Telescope Array (CTA) will be the largest cosmic gamma ray detector ever built in the world. It will be installed at two different sites in the North and South hemispheres and should be operational for about 30 years. In order…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 F. Hénault , P. O. Petrucci , L. jocou , B. Khélifi , P. Manigot , S. Hormigos , J. Knodlseder , J. F. Olive , P. Jean , M. Punch

The key parameters of Cherenkov Correlated Timing (CCT) detectors are discussed. Measurements of radiator geometry, optical properties of radiator and coupling materials, and photon detector timing performance are presented.

This paper presents a preliminary study into the use of CCDs to image secondary scintillation light generated by THick Gas Electron Multipliers (THGEMs) in a two phase LAr TPC. A Sony ICX285AL CCD chip was mounted above a double THGEM in…

Instrumentation and Detectors · Physics 2015-06-18 K. Mavrokoridis , F. Ball , J. Carroll , M. Lazos , K. J. McCormick , N. A. Smith , C. Touramanis , J. Walker

Single-photon imaging spectrometers of high quantum efficiency in the infrared to ultraviolet wavelength range, with good timing resolution and with a vanishing dark count rate are on top of the wish list in earth-bound astronomy, material…

Instrumentation and Detectors · Physics 2007-06-13 Miha Furlan , Eugenie Kirk , Alex Zehnder

This paper explores the adaptation and application of i-TED Compton imagers for real-time dosimetry in Boron Neutron Capture Therapy (BNCT). The i-TED array, previously utilized in nuclear astrophysics experiments at CERN, is being…

ISGRI, the IBIS low energy camera (15 keV - 1 MeV) on board INTEGRAL, is the first large CdTe gamma-ray imager in orbit. We present here an overview of the ISGRI in-flight calibrations performed during the first months after launch. We…

Here are presented the results obtained with three comets 73P (Schwassmann Wachmann) B the component B, 6P dArrest and C2008 J1 (Boattini). Comet 73P was observed in April 2006 with a CCD camera Starlight Express SXL8 attached to direct…

Solar and Stellar Astrophysics · Physics 2014-09-10 Toni Scarmato

We have developed a new method to correct dark current at relatively high temperatures for Charge-Coupled Device (CCD) images when dark frames cannot be obtained on the telescope. For images taken with the Antarctic Survey Telescopes (AST3)…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 Bin Ma , Zhaohui Shang , Yi Hu , Qiang Liu , Lifan Wang , Peng Wei

We present RETROCAM, an auxiliary CCD camera that can be rapidly inserted into the optical beam of the MDM 2.4m telescope. The speed and ease of reconfiguring the telescope to use the imager and a straightforward user interface permit the…

The common terahertz time-domain spectroscopy (THz-TDS) based on photoconductive antenna (PCA) needs two separate PCA chips. One PCA works as an emitter, and the other works as a receiver. For a reflection-type measurement, the technique…

Optics · Physics 2013-12-17 Jitao Zhang

Globally, cataract is a common eye disease and one of the leading causes of blindness and vision impairment. The traditional process of detecting cataracts involves eye examination using a slit-lamp microscope or ophthalmoscope by an…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Pavani Tripathi , Yasmeena Akhter , Mahapara Khurshid , Aditya Lakra , Rohit Keshari , Mayank Vatsa , Richa Singh

Tsinghua-NAOC (National Astronomical Observatories of China) Telescope (hereafter, TNT) is an 80-cm Cassegrain reflecting telescope located at Xinglong bservatory of NAOC, with main scientific goals of monitoring various transients in the…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 Fang Huang , Jun-Zheng Li , Xiao-Feng Wang , Ren-Cheng Shang , Tian-Meng Zhang , Jing-Yao Hu , Yu-Lei Qiu , Xiao-Jun Jiang

Cornell University, the California Institute for Technology, and the Jet Propulsion Laboratory are jointly studying the construction of a 25 m diameter telescope for submillimeter astronomy on a high mountain in northern Chile. This Cornell…

The Pan-STARRS telescope consists of an array of smaller mirrors viewed by a Gigapixel arrays of CCDs. These focal planes employ Orthogonal Transfer CCDs (OTCCDs) to allow on-chip image stabilization. Each OTCCD has advanced logic features…

Instrumentation and Detectors · Physics 2008-11-26 Elena Martin , Gary Varner , Aaron Koga , Larry Ruckman , Peter Onaka , John Tonry , Aaron Lee

An upgrade to the IceCube Neutrino Telescope is currently under construction. For this IceCube Upgrade, seven new strings will be deployed in the central region of the 86 string IceCube detector to enhance the capability to detect neutrinos…

Instrumentation and Methods for Astrophysics · Physics 2021-07-27 Woosik Kang , Jiwoong Lee , Gerrit Roellinghoff , Carsten Rott , Christoph Tönnis

The prevalent use of large volume liquid argon detectors strongly motivates the development of novel readout and monitoring technology which functions at cryogenic temperatures. This paper presents the development of a cryogenic CMOS camera…

Instrumentation and Detectors · Physics 2017-04-05 Nicola McConkey , Neil Spooner , Matthew Thiesse , Michael Wallbank , Thomas Karl Warburton

The CONNIE detector prototype is operating at a distance of 30 m from the core of a 3.8 GW$_{\rm th}$ nuclear reactor with the goal of establishing Charge-Coupled Devices (CCD) as a new technology for the detection of coherent elastic…

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…

An innovative photosensitive gaseous detector, consisting of a GEM like amplification structure with double layered electrodes (instead of commonly used metallic ones) coated with a CsI reflective photocathode, is described. In one of our…

Instrumentation and Detectors · Physics 2008-07-18 V. Peskov , P. Martinengo , E. Nappi , R. Oliveira , G. Paic , F. Pietropaolo , P. Picchi

The foreseen implementations of the Small Size Telescopes (SST) in CTA will provide unique insights into the highest energy gamma rays offering fundamental means to discover and under- stand the sources populating the Galaxy and our local…