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In a focused ion beam (FIB) microscope, source particles interact with a small volume of a sample to generate secondary electrons that are detected, pixel by pixel, to produce a micrograph. Randomness of the number of incident particles…

Medical Physics · Physics 2023-08-15 Minxu Peng , John Murray-Bruce , Vivek K Goyal

Detector developments are currently enabling new capabilities in the field of transmission electron microscopy (TEM). We have investigated the limits of a hybrid pixel detector, Medipix3, to record dynamic, time varying, electron signals.…

Instrumentation and Detectors · Physics 2019-12-17 Gary W. Paterson , Raymond J. Lamb , Rafael Ballabriga , Dima Maneuski , Val O'Shea , Damien McGrouther

The MIMAC project is a multi-chamber detector for Dark Matter search, aiming at measuring both track and ionization with a matrix of micromegas micro-TPC filled with He3 and CF4. Recent experimental results on the first measurements of the…

Cosmology and Nongalactic Astrophysics · Physics 2009-09-01 F. Mayet , O. Guillaudin , C. Grignon , C. Koumeir , D. Santos , P. Colas , I. Giomataris

The ALICE collaboration is preparing an upgrade of the three innermost layers of the current Inner Tracking System (ITS) during the next LHC long shutdown (LS3). The new ITS detector will use wafer-scale (up to \SI{27}{cm} in length)…

Instrumentation and Detectors · Physics 2026-01-29 Stefania Perciballi

We describe a novel gaseous detector concept for heavy-ion tracking and imaging: the Optical Parallel-Plate Avalanche Counter (O-PPAC). The detector consists of two thin parallel-plate electrodes separated by a small (typically 3 mm) gap…

Instrumentation and Detectors · Physics 2018-10-17 Marco Cortesi , Yassid Ayyada , John Yurkon

We present ion backflow measurements in a Micromegas (MICRO-MEsh GASeous detector) TPC device developed for the next high energy electron-positron linear collider under study and a simple explanation for this backflow. A Micromegas…

Instrumentation and Detectors · Physics 2007-05-23 P. Colas , I. Giomataris , V. Lepeltier

T0 detector, based on Multi-gap Resistive Plate Chambers (MRPC) technology, is one of the key components in the External Target Experiment. Through precision measurements of the MRPC signals, timing of the beam impact on target can be…

Instrumentation and Detectors · Physics 2019-09-25 Peipei Deng , Lei Zhao , Jiaming Lu , Pinzheng Xia , Jinxin Liu , Min Li , Shubin Liu , Qi An

A prototype detector is being developed which combines the functions of a Time Projection Chamber for charged particle tracking and a Cherenkov detector for particle identification. The TPC consists of a 10x10x10 cm3 drift volume where the…

Instrumentation and Detectors · Physics 2015-12-18 Craig Woody , Babak Azmoun , Richard Majka , Michael Phipps , Martin Purschke , Nikolai Smirnov

Three-dimensional track reconstruction is a key issue for directional Dark Matter detection and it requires a precise knowledge of the electron drift velocity. Magboltz simulations are known to give a good evaluation of this parameter.…

Instrumentation and Methods for Astrophysics · Physics 2014-01-29 J. Billard , F. Mayet , G. Bosson , O. Bourrion , O. Guillaudin , J. Lamblin , J. P. Richer , Q. Riffard , D. Santos , F. J. Iguaz , L. Lebreton , D. Maire

CLIC is a proposed linear $e^+e^-$ collider with center-of-mass energies of up to 3 TeV. Its main objectives are precise top quark, Higgs boson and Beyond Standard Model physics. In addition to spatial resolutions of a few micrometers and a…

Instrumentation and Detectors · Physics 2021-03-10 Simon Spannagel

For its physics program with a high-intensity hadron beam of up to 2e7 particles/s, the COMPASS experiment at CERN requires tracking of charged particles scattered by very small angles with respect to the incident beam direction. While good…

Gaseous detectors are used in high energy physics as trackers or, more generally, as devices for the measurement of the particle position. For this reason, they must provide high spatial resolution and they have to be able to operate in…

We present the results of using standard IMARAD CZT detectors with a 100 MHz readout of the anode and cathode pulses. The detectors, 2 cm x 2 cm large and 0.5 cm thick, have 64 Indium pixellated anode contacts at a pitch of 2.5 mm. We…

Astrophysics · Physics 2009-09-29 J. S. Perkins , H. Krawczynski , P. Dowkontt

Photosensitive gaseous detectors with a simple photoelectron multiplication mechanism of resistive plate chambers (RPCs) are expected to have both a large photocoverage and an excellent time resolution and to be low-cost. To demonstrate the…

Instrumentation and Detectors · Physics 2023-05-24 K. Matsuoka , R. Okubo , Y. Adachi

This work reports a cost-effective, simple front-end readout and DAQ of a RPC-based muon scattering tomography system under construction. The Time-over-threshold property of NINO ASICs has been exploited to achieve precise tracking by…

Instrumentation and Detectors · Physics 2020-06-01 Sridhar Tripathy , Subhendu Das , Jaydeep Datta , Nayana Majumdar , Supratik Mukhopadhyay

The Time Projection Chamber is the main tracking and particle identification detector of the ALICE experiment. The high luminosities delivered by the CERN LHC in Run 2 (2015-2018) posed new challenges in terms of detector performance and…

Instrumentation and Detectors · Physics 2019-09-10 Ernst Hellbär

We present the implementation and verification of an in-pixel automatic threshold calibration circuit for the CMS Endcap Timing Layer (ETL) in the High-Luminosity LHC upgrade. The discriminator threshold of the ETL readout chip (ETROC)…

Instrumentation and Detectors · Physics 2021-10-04 H. Sun , D. Gong , C. Edwards , G. Huang , X. Huang , C. Liu , T. Liu , T. Liu , J. Olsen , Q. Sun , J. Wu , J. Ye , L. Zhang , W. Zhang

The quantitative measurement of energy deposits in particle detectors, particularly in calorimeters, is usually accomplished with the help of Analog-to-Digital converters (ADCs) due to their precision, wide measurement range, and good…

Instrumentation and Detectors · Physics 2025-08-04 J. Peña-Rodríguez , J. Förtsch , C. Pauly , K. -H. Kampert

We present a novel FPGA-based bismuth germanate (BGO) time-of-flight (TOF) digitizer, implemented on an FPGA (VC707 evaluation kit, Xilinx). This digitizer was designed to address the recently highlighted characteristics of BGO, which…

Instrumentation and Detectors · Physics 2024-10-15 Daehee Lee , Sun Il Kwon
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