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Most of the scientific instrumentation as well as the tracking systems and the Shack- Hartmann wavefront analysers at the Italian National Telescope Galileo use CCDs as detectors. The characterization of detectors is of fundamental…

Instrumentation and Methods for Astrophysics · Physics 2023-02-21 R. Cosentino , G. Bonanno , P. Bruno , S. Scuderi , C. Bonoli , F. Bortoletto , M. D'Alessandro , D. Fantinel

Quickest change detection (QCD) is a fundamental problem in many applications. Given a sequence of measurements that exhibits two different distributions around a certain flipping point, the goal is to detect the change in distribution…

Information Theory · Computer Science 2020-01-23 Ahmed Badawy , Ahmed El Shafie , Tamer Khattab

The EPIC focal plane imaging spectrometers on XMM-Newton use CCDs to record the images and spectra of celestial X-ray sources focused by the three X-ray mirrors. There is one camera at the focus of each mirror; two of the cameras contain…

Astrophysics · Physics 2009-10-31 M. J. L. Turner , A. Abbey , M. Arnaud

The applications of automotive cameras in Advanced Driver-Assistance Systems (ADAS) are growing rapidly as automotive manufacturers strive to provide 360 degree protection for their customers. Vision systems must capture high quality images…

Image and Video Processing · Electrical Eng. & Systems 2020-11-26 Shane Gilroy , John O'Dwyer , Lucas Bortoleto

We have studies the performance characteristics of approximately 4000 Visible Light Photon Counters(VLPC) over a range of operating temperatures and biases. We will describe the characterization procedure and present the measured gain,…

High Energy Physics - Experiment · Physics 2009-09-25 Chul Hi Park , D0 Collaboration

DECal is a new calibration system for the CTIO 4 m Blanco telescope. It is currently being installed as part of the Dark Energy Survey and will provide both broadband flat fields and narrowband (about 1 nm bandwidth) spectrophotometric…

We present details of the design for the CCD readout electronics for the Subaru Telescope Prime Focus Spectrograph (PFS). The spectrograph is comprised of four identical spectrograph modules, each collecting roughly 600 spectra. The…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 Stephen C. Hope , James E. Gunn , Craig P. Loomis , Roger E. Fitzgerald , Grant O. Peacock

In this paper, we have investigated a self-developed sine wave gated (SWG) single-photon detector (SPD) for 1550 nm wavelength primary for quantum key distribution (QKD) usage. We have investigated different gate parameters` influence on…

Quantum Physics · Physics 2021-04-20 A. V. Losev , V. V. Zavodilenko , A. A. Koziy , Y. V. Kurochkin , A. A. Gorbatsevich

The Large High Altitude Air Shower Observatory (LHAASO) is designed for high energy gamma ray and cosmic ray detection. A Water Cherenkov Detector Array which is sensitive to gamma ray showers above a few hundred GeV is proposed to survey…

Instrumentation and Detectors · Physics 2016-03-14 Jianfeng Liu , Lei Zhao , Li Yu , Yu Liang , Jiajun Qin , Yunfang Yang , Weihao Wu , Shubin Liu , Qi An

We report the demonstration of a low-power pixelated readout system designed for three-dimensional ionization charge detection and digital readout of liquid argon time projection chambers (LArTPCs). Unambiguous 3D charge readout was…

Instrumentation and Detectors · Physics 2018-10-12 D. A. Dwyer , M. Garcia-Sciveres , D. Gnani , C. Grace , S. Kohn , M. Kramer , A. Krieger , C. J. Lin , K. B. Luk , P. Madigan , C. Marshall , H. Steiner , T. Stezelberger

Transferring the nanocrystals (NCs) from the laboratory environment toward practical applications has raised new challenges. In the case of NCs for display and lightning, the focus was on reduced Auger recombination and maintaining…

The performance of a silicon photomultiplier has been assessed at low temperature in order to evaluate its suitability as a scintillation readout device in liquid argon particle physics detectors. The gain, measured as 2.1E6 for a constant…

Instrumentation and Detectors · Physics 2011-06-09 P. K. Lightfoot , G. J. Barker , K. Mavrokoridis , Y. A. Ramachers , N. J. C. Spooner

The X-ray Imaging Spectrometer (XIS) on board the Suzaku satellite is an X-ray CCD camera system that has superior performance such as a low background, high quantum efficiency, and good energy resolution in the 0.2-12 keV band. Because of…

A cryogenic detector system based on two 3.3 kg high-purity CsI crystals was developed and characterized at approximately 95 K. Each wedge-shaped crystal was coupled to dual-ended 3-inch photomultiplier tubes (PMTs) for scintillation…

Instrumentation and Detectors · Physics 2025-09-23 Chen'guang Su , Lingquan Kong , Qian Liu , Shi Chen , Wenqian Huang , Kimiya Moharrami , Yangheng Zheng , Jin Li

A full-wafer, 10,580 $\times$ 10,560 pixel (95 $\times$ 95 mm) CCD was designed and tested at Semiconductor Technology Associates (STA) with 9 um square pixels and 16 outputs. The chip was successfully fabricated in 2006 at DALSA and some…

The water Cherenkov detector array (WCDA) is one of the key detectors in the large high altitude air shower observatory (LHAASO), which is proposed for very high gamma ray source survey. In WCDA, there are more than 3000 photomultiplier…

Instrumentation and Detectors · Physics 2018-06-26 Shengzhi Zhou , Lei Zhao , Yuxiang Guo , Ruoshi Dong , Boyu Cheng , Jiajun Qin , Sifan Qian , Shubin Liu , Qi An

We perform a cosmological parameter analysis of the 75 square degree CTIO lensing survey in conjunction with CMB and Type Ia supernovae data. For Lambda CDM cosmologies, we find that the amplitude of the power spectrum at low redshift is…

Astrophysics · Physics 2008-11-26 Mike Jarvis , Bhuvnesh Jain , Gary Bernstein , Derek Dolney

The non-destructive readout capability of the Skipper Charge Coupled Device (CCD) has been demonstrated to reduce the noise limitation of conventional silicon devices to levels that allow single-photon or single-electron counting. The noise…

We demonstrate that a simple silver coated ball lens can be used to accurately measure the entire distribution of radiative transition rates of quantum dot nanocrystals. This simple and cost-effective implementation of Drexhage's method…