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We have developed a prototype system for the ILC vertex detector based on DEPFET pixels. The system operates a 128x64 matrix (with ~35x25 square micron large pixels) and uses two dedicated microchips, the SWITCHER II chip for matrix…

We demonstrate millikelvin thermometry of laser cooled trapped ions with high-resolution imaging. This equilibrium approach is independent of the cooling dynamics and has lower systematic error than Doppler thermometry, with \pm5 mK…

量子物理 · 物理学 2011-06-10 B. G. Norton , E. W. Streed , M. J. Petrasiunas , A. Jechow , D. Kielpinski

The single photoelectron performance characteristics of a Large Area Picosecond PhotoDetector (LAPPD) were studied using a picosecond optical laser source. We verify that the LAPPD is capable of achieving transit time spreads of less than…

仪器与探测器 · 物理学 2024-07-24 Robert Foster , Andrew Scarff , Matthew Malek

A liquid crystal (LC) lens array based on double-layer composite electrodes, characterized by a large aperture, short focal length, and low operating voltage is demonstrated. The lens array consists of an LC layer, a top common electrode, a…

光学 · 物理学 2025-09-05 Rui Ding , Li-Lan Tian , Yi Zheng , Yu-Meng Zeng , Fan Zou , Yue Niu , Rong-Fu Liu , Ji-Wei Zhou

Here we propose a new design paradigm for a superconducting nanowire single photon detector that uses a multi-layer architecture that places the electric leads beneath the nanowires. This allows for a very large number of detector elements,…

光学 · 物理学 2015-06-04 A. Matthew Smith

During the LHC Long Shutdown 3 (2026-29) ALICE will replace its three innermost tracking layers by a new detector, the "ITS3". It will be based on newly developed, wafer-scale monolithic active pixel sensors, which are bent into truly…

仪器与探测器 · 物理学 2026-01-13 Jory Sonneveld

X-ray detectors made of crystalline silicon have several advantages including low dark currents, fast charge collection and high energy resolution. For high-energy x-rays, however, silicon suffers from its low atomic number, which might…

仪器与探测器 · 物理学 2021-01-26 Moa Yveborg , Cheng Xu , Erik Fredenberg , Mats Danielsson

CdS thin film samples were fabricated using spin coating technique on normal glass and conductive glass substrates and annealed at different temperatures. According to the XRD patterns of films prepared on normal glass substrates,…

材料科学 · 物理学 2018-08-28 D. M. C. U. Dissanayake , J. S. T. Wickramasinghe , P. Samarasekara

Current multispectral imagers suffer from low photon efficiency and limited spectrum range. These limitations are partially due to the technological limitations from array sensors (CCD or CMOS), and also caused by separative measurement of…

光学 · 物理学 2016-04-25 Liheng Bian , Jinli Suo , Guohai Situ , Ziwei Li , Feng Chen , Qionghai Dai

The PANDA experiment at the FAIR facility at GSI will study hadron physics using a high intensity antiproton beam of up to 15 GeV/c momentum to perform high precision spectroscopy. Two DIRC detectors with their image planes residing in an…

MiniCACTUS-v2 is a monolithic sensor prototype designed in LF 150 nm CMOS process for time tagging of individual Minimum Ionizing Particles with an accuracy better than 100 ps. The sensing element is a deep n-well/p-substrate diode without…

The Compact Muon Solenoid (CMS) detector at the CERN Large Hadron Collider (LHC) is undergoing an extensive Phase II upgrade program to prepare for the challenging conditions of the High-Luminosity LHC (HL-LHC). A new timing layer is…

仪器与探测器 · 物理学 2018-10-02 Irene Dutta

A low-energy electron diffraction (LEED) apparatus which works at temperatures down to about 100 mK is designed to obtain structural information of 2D helium on graphite. This very low temperature system can be realized by reducing the…

材料科学 · 物理学 2015-06-11 K. Matsui , S. Nakamura , T. Matsui , Hiroshi Fukuyama

In this letter we report on the generation of cold electron beams using a Cs3Sb photocathode grown by co-deposition of Sb and Cs. By cooling the photocathode to 90 K we demonstrate a significant reduction in the mean transverse energy…

加速器物理 · 物理学 2015-12-09 Luca Cultrera , Siddharth Karkare , Hyeri Lee , Xianghong Liu , Ivan Bazarov

Low-cost thermal cameras are inaccurate (usually $\pm 3^\circ C$) and have space-variant nonuniformity across their detector. Both inaccuracy and nonuniformity are dependent on the ambient temperature of the camera. The goal of this work…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Navot Oz , Nir Sochen , David Mendelovich , Iftach Klapp

Today's state-of-the-art methods for 3D object detection are based on lidar, stereo, or monocular cameras. Lidar-based methods achieve the best accuracy, but have a large footprint, high cost, and mechanically-limited angular sampling…

计算机视觉与模式识别 · 计算机科学 2021-02-09 Frank Julca-Aguilar , Jason Taylor , Mario Bijelic , Fahim Mannan , Ethan Tseng , Felix Heide

The present Compact Muon Solenoid silicon pixel tracking system has been designed for a peak luminosity of 1034cm-2s-1 and total dose corresponding to two years of the Large Hadron Collider (LHC) operation. With the steady increase of the…

仪器与探测器 · 物理学 2011-10-11 N. Parashar

An X-ray detector based on the combination of an integrated Micromegas stage with a pixel chip has been built in order to be installed at the CERN Axion Solar Telescope. Due to its high granularity and spatial resolution this detector…

仪器与探测器 · 物理学 2014-10-02 Christoph Krieger , Klaus Desch , Jochen Kaminski , Michael Lupberger , Theodoros Vafeiadis

To enrich the functionalities of traditional cameras, light field cameras record both the intensity and direction of light rays, so that images can be rendered with user-defined camera parameters via computations. The added capability and…

图像与视频处理 · 电气工程与系统科学 2022-01-25 Muhammad Umair Mukati , Xi Zhang , Xiaolin Wu , Søren Forchhammer

The effect of moderate cooling on CdZnTe semiconductor detectors has been studied for the COBRA experiment. Improvements in energy resolution and low energy threshold were observed and quantified as a function of temperature. Leakage…

仪器与探测器 · 物理学 2009-02-02 J. V. Dawson , C. Montag , C. Reeve , J. R. Wilson , K. Zuber
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