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During the scheduled high luminosity upgrade of LHC, the world's largest particle physics accelerator at CERN, the position sensitive silicon detectors installed in the vertex and tracking part of the CMS experiment will face more intense…

Instrumentation and Detectors · Physics 2015-01-21 T. Peltola

In the framework of the HL-LHC upgrade, the ATLAS experiment plans to introduce an all-silicon inner tracker to cope with the elevated occupancy. To investigate the suitability of pixel sensors using the proven planar technology for the…

Instrumentation and Detectors · Physics 2015-06-23 C. Nellist

The skipper CCD is a special type of charge coupled device in which the readout noise can be reduced to sub-electron levels by averaging independent measurements of the same charge. Thus the charge in the pixels can be determined by…

The phase 1 upgrade of the CMS pixel detector has been designed to maintain the tracking performance at instantaneous luminosities of $2 \times 10^{34} \mathrm{~cm}^{-2} \mathrm{~s}^{-1}$. Both barrel and endcap disk systems now feature one…

Instrumentation and Detectors · Physics 2018-07-25 Jory Sonneveld

Semi-Supervised Instance Segmentation (SSIS) involves classifying and grouping image pixels into distinct object instances using limited labeled data. This learning paradigm usually faces a significant challenge of unstable performance…

Computer Vision and Pattern Recognition · Computer Science 2025-05-19 Jianghang Lin , Yilin Lu , Yunhang Shen , Chaoyang Zhu , Shengchuan Zhang , Liujuan Cao , Rongrong Ji

We have used a mesh experiment in order to measure the sub-pixel structure of the EPIC MOS CCDs on-board the XMM/NEWTON satellite. The EPIC MOS CCDs have 40 $\mu$m-square pixels which have an open electrode structure in order to improve the…

Instrumentation and Detectors · Physics 2019-08-17 J. Hiraga , H. Tsunemi , A. D. Short , A. F. Abbey , P. J. Bennie , M. J. L. Turner

A method is presented to precisely reconstruct charge spectra with pixel detectors using binary hit information of individual pixels. The method is independent of the charge information provided by the readout circuitry and has a resolution…

Instrumentation and Detectors · Physics 2017-02-17 David-Leon Pohl , Jens Janssen , Tomasz Hemperek , Fabian Hügging , Norbert Wermes

This study constructs a hybrid module with a multi-material collaborative detection architecture by integrating silicon pixel layers into the longitudinally segmented scintillating fiber sampling calorimeter module and optimizes the…

Instrumentation and Detectors · Physics 2025-09-30 Jia-Le Fei , Ao Yuan , Chang-Heng Huang , Liu-Pan An , Ji-Ke Wang

First measurements are presented from a newly commissioned two-photon absorption (TPA) setup at Nikhef. The characterisation of the various components of the system is discussed. Two planar silicon sensors, one being electron collecting and…

Instrumentation and Detectors · Physics 2022-02-23 R. Geertsema , K. Akiba , M. van Beuzekom , T. Bischoff , K. Heijhoff , H. Snoek

Recent self-supervised models have demonstrated equal or better performance than supervised methods, opening for AI systems to learn visual representations from practically unlimited data. However, these methods are typically…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Robin Karlsson , Tomoki Hayashi , Keisuke Fujii , Alexander Carballo , Kento Ohtani , Kazuya Takeda

CMOS Monolithic Active Pixel Sensors (CPS) are ultra-light and highly granular silicon pixel detectors suited for highly sensitive charged particle tracking. Being manufactured with cost efficient standard CMOS processes, CPS may integrate…

Instrumentation and Detectors · Physics 2020-01-29 M. Deveaux

In our study spanning 2015-2021, we examined sink pixels (SPs) in the Advanced Camera for Surveys Wide Field Channel (ACS/WFC) using dark and SP reference files. SPs are pixels with values $\le$ $-10$ electrons below the local background of…

Instrumentation and Methods for Astrophysics · Physics 2026-03-02 Alyssa M. Guzman , Jenna E. Ryon

Subspace clustering is a powerful unsupervised approach for hyperspectral image (HSI) analysis, but its high computational and memory costs limit scalability. Superpixel segmentation can improve efficiency by reducing the number of data…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Xianlu Li , Nicolas Nadisic , Shaoguang Huang , Aleksandra Pizurica

A pixel detector with a CVD diamond sensor has been studied in a 180 GeV/c pion beam. The charge collection properties of the diamond sensor were studied as a function of the track position, which was measured with a silicon microstrip…

Instrumentation and Detectors · Physics 2009-11-10 T. Lari , A. Oh , N. Wermes , H. Kagan , M. Keil , W. Trischuk

The CMS detector at the CERN LHC features a silicon pixel detector as its innermost subdetector. The original CMS pixel detector has been replaced with an upgraded pixel system (CMS Phase-1 pixel detector) in the extended year-end technical…

Instrumentation and Detectors · Physics 2020-12-29 The Tracker Group of the CMS Collaboration

Active Pixel Sensor (APS) technology has shown promise for next-generation vertex detectors. This paper discusses the design and testing of two generations of APS chips. Both are arrays of 128 by 128 pixels, each 20 by 20 micro-m. Each…

Nuclear Experiment · Physics 2011-07-19 H. S. Matis , F. Bieser , S. Kleinfelder , G. Rai , F. Retiere , H. G. Ritter , K. Singh , S. E. Wurzel , H. Wieman , E. Yamamoto

The ATLAS experiment, at the Large Hadron Collider, will incorporate discrete, high-resolution tracking sub-systems in the form of segmented silicon detectors with 40MHz radiation-hard readout electronics. In the region closest to the pp…

High Energy Physics - Experiment · Physics 2007-05-23 John Richardson , representing the ATLAS Pixel Project

The upgrade to the High Luminosity Large Hadron Collider will pose unprecedented challenges to the tracking systems of all experiments. Recent advancement of active pixel detectors designed in CMOS processes provide attractive alternatives…

Instrumentation and Detectors · Physics 2017-09-13 T. Bisanz , J. Große-Knetter , A. Quadt , J. Rieger , J. Weingarten

Microchannel plates (MCP) are the basis for many spatially-resolved single-particle detectors such as ICCD or I-sCMOS cameras employing image intensifiers (II), MCPs with delay-line anodes for the detection of cold gas particles or…

Instrumentation and Detectors · Physics 2018-09-27 Michał Lipka , Michał Parniak , Wojciech Wasilewski
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