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The pixel detector is the innermost tracking device in CMS, reconstructing interaction vertices and charged particle trajectories. The sensors located in the innermost layers of the pixel detector must be upgraded for the ten-fold increase…

Many man-made objects are characterised by a shape that is symmetric along one or more planar directions. Estimating the location and orientation of such symmetry planes can aid many tasks such as estimating the overall orientation of an…

计算机视觉与模式识别 · 计算机科学 2021-07-01 Mihaela Cătălina Stoian , Tommaso Cavallari

We develop and validate a new algorithm called \textit{primary track recovery} (\ptr) that effectively deconvolves known physics and detector effects from nuclear recoil tracks in gas time projection chambers (TPCs) with high-resolution…

仪器与探测器 · 物理学 2022-04-27 P. M. Lewis , M. T. Hedges , I. Jaegle , J. Schueler , T. N. Thorpe , S. E. Vahsen

The scientific apparatus "Gamma-400" designed for study of hadron and electromagnetic components of cosmic rays will be launched to an elliptic orbit with the apogee of about 300 000 km and the perigee of about 500 km. Such a configuration…

天体物理仪器与方法 · 物理学 2016-02-17 A. Guskov , G. Shelkov , P. Smolyanskiy , A. Zhemchugov

This paper describes an iterative method of per-pixel energy calibration of hybrid pixel detectors with GaAs:Cr sensor and Timepix readout chip. A convolution of precisely measured spectra of characteristic X-rays of different metals with…

The ALICE ITS3 project foresees the use of ultra-light MAPS, developed in the 65 nm imaging process, for the vertex detector in the ALICE experiment at the LHC to drastically improve the vertexing performance. This new development,…

仪器与探测器 · 物理学 2024-09-13 Kunal Gautam , Ajit Kumar

A large volume TPC is a leading candidate for the central tracking detector at a future high energy linear collider. To improve the resolution a new readout based on micro-pattern gas detectors is being developed. Measurements of the…

仪器与探测器 · 物理学 2011-07-19 R. K. Carnegie , M. S. Dixit , J. Dubeau , D. Karlen , J. -P. Martin , H. Mes , K. Sachs

This is part of a document, which is devoted to the developments of pixel detectors in the context of the International Linear Collider. From the early developments of the MIMOSAs to the proposed DotPix I recall some of the major…

仪器与探测器 · 物理学 2020-03-24 Nicolas Fourches , University Paris-Saclay

Highly granular pixel detectors allow for increasingly precise measurements of charged particle tracks. Next-generation detectors require that pixel sizes will be further reduced, leading to unprecedented data rates exceeding those foreseen…

In this article we present methods for measuring hindered Brownian motion in the confinement of complex 3D geometries using digital video microscopy. Here we discuss essential features of automated 3D particle tracking as well as diffusion…

流体动力学 · 物理学 2014-08-20 Simon L Dettmer , Ulrich F Keyser , Stefano Pagliara

Purpose: CMOS pixel sensors have become extremely attractive for future high performance tracking devices. Initial R\&D work has been conducted for the vertex detector for the proposed Circular Electron Positron Collider that will allow…

仪器与探测器 · 物理学 2019-09-04 L. J. Chen , H. B. Zhu , X. C. Ai , M. Fu , R. Kiuchi , Y. Liu , Z. A. Liu , X. C. Lou , Y. P. Lu , Q. Ouyang , X. Shi , J. Tao , K. Wang , N. Wang , C. F. Yang , Y. Zhang , Y. Zhou

The ATLAS Pixel detector is a high-resolution, low-noise silicon-based device designed to provide tracking and vertexing information within a distance of 12 cm from the LHC beam axis. It consists of approximately 80 million pixel channels…

仪器与探测器 · 物理学 2019-08-13 J. Biesiada

The hit combinatorial problem is a main challenge for track reconstruction and triggering at high rate experiments. At hadron colliders the dominant fraction of hits is due to low momentum tracks for which multiple scattering (MS) effects…

仪器与探测器 · 物理学 2015-06-22 Andre Schöning

We demonstrate the application of event-driven Timepix3-based detectors in combination with a double-sided velocity-map-imaging spectrometer to record the full 3D momentum of charged particles at the free-electron-laser facility FLASH. We…

3D object proposals, quickly detected regions in a 3D scene that likely contain an object of interest, are an effective approach to improve the computational efficiency and accuracy of the object detection framework. In this work, we…

机器人学 · 计算机科学 2018-06-27 Ramanpreet Singh Pahwa , Tian Tsong Ng , Minh N. Do

The physics aims at the proposed future CLIC high-energy linear $e^+ e^-$ collider pose challenging demands on the performance of the detector system. In particular the vertex and tracking detectors have to combine precision measurements…

仪器与探测器 · 物理学 2019-09-04 Mathieu Benoit

Examining locomotion has improved our basic understanding of motor control and aided in treating motor impairment. Mice and rats are premier models of human disease and increasingly the model systems of choice for basic neuroscience. High…

计算机视觉与模式识别 · 计算机科学 2017-11-27 Omid Haji Maghsoudi , Andrew Spence

We revisit the precision of the measurement of track parameters (position, angle) with optimal methods in the presence of detector resolution, multiple scattering and zero magnetic field. We then obtain an optimal estimator of the track…

数据分析、统计与概率 · 物理学 2017-07-04 Mikael Frosini , Denis Bernard

The ARIADNE project is developing innovative optical readout technologies for two-phase liquid Argon time projection chambers (LArTPCs). Optical readout presents an exciting alternative to the current paradigm of charge readout. Optical…