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Recent progress in active-edge technology of silicon sensors enables the development of large-area tiled silicon pixel detectors with small dead space between modules by utilizing edgeless sensors. Such technology has been proven in…

Instrumentation and Detectors · Physics 2015-06-23 Jiaguo Zhang , Damaris Tartarotti Maimone , David Pennicard , Milija Sarajlic , Heinz Graafsma

The electric field governing the dynamics of space charge produced by high intensity femtosecond laser pulses focused on a copper surface is investigated by time-resolved low-energy-electron-scattering. The pump-probe experiment has a…

Materials Science · Physics 2009-11-13 C. Cirelli , M. Hengsberger , A. Dolocan , H. Over , J. Osterwalder , T. Greber

An intrinsic electron injection model for linear band two-dimensional (2D) materials, like graphene, is presented and its coupling to a recently developed quantum time-dependent Monte Carlo simulator for electron devices, based on the use…

Mesoscale and Nanoscale Physics · Physics 2019-04-17 Zhen Zhan , Xueheng Kuang , Enrique Colomés , Devashish Pandey , Shengjun Yuan , Xavier Oriols

Many high power electronic devices operate in a regime where the current they draw is limited by the self-fields of the particles. This space-charge-limited current poses particular challenges for numerical modeling where common techniques…

Plasma Physics · Physics 2020-07-07 Peter H. Stoltz , John W. Luginsland , Andrew M. Chap , David N. Smithe , John R. Cary

Charge collection measurements performed on heavily irradiated p-spray DOFZ pixel sensors with a grazing angle hadron beam provide a sensitive determination of the electric field within the detectors. The data are compared with a complete…

Poisson-Boltzmann theory is the cornerstone for soft matter electrostatics. We provide novel exact analytical solutions to this non-linear mean-field approach, for the diffuse layer of ions in the vicinity of a planar or a cylindrical…

Soft Condensed Matter · Physics 2020-01-29 L. Samaj , E. Trizac

The evolution of negative streamers during electric breakdown of a non-attaching gas can be described by a two-fluid model for electrons and positive ions. It consists of continuity equations for the charged particles including drift,…

Computational Physics · Physics 2015-06-26 C. Montijn , W. Hundsdorfer , U. Ebert

In this study, we explore an approach aimed at enhancing the transmission or reflection coefficients of absorbing materials through the utilization of joint measurements of entangled photon states. On the one hand, through the…

Charge multiplication (CM) in p$^+$n epitaxial silicon pad diodes of 75, 100 and 150 $\upmu$m thickness at high voltages after proton irradiation with 1 MeV neutron equivalent fluences in the order of $10^{16}$ cm$^{-2}$ was studied as an…

Instrumentation and Detectors · Physics 2014-11-21 Jörn Lange , Julian Becker , Eckhart Fretwurst , Robert Klanner , Gunnar Lindström

Charge collection measurements performed on heavily irradiated p-spray dofz pixel sensors with a grazing angle hadron beam provide a sensitive determination of the electric field within the detectors. The data are compared with a complete…

Smith-Purcell radiation and Transition Radiation are two radiative phenomenon that occur in charged particles accelerators. For both the emission can be significantly enhanced with sufficiently short pulses and both can be used to measure…

Accelerator Physics · Physics 2016-04-29 Vitalii Khodnevych , Nicolas Delerue , Oleg Bezshyyko

Modern scientific instruments operate under increasingly extreme constraints on bandwidth, latency, and power. Inference at the sensor edge determines experimental data collection efficiency by deciding which information to save for further…

We propose to measure the superradiance effect by observing the current through a semiconductor double-dot ststem. An electron and a hole are injected separately into one of the quantum dots to form an exciton and then recombine…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Y. N. Chen , D. S. Chuu , T. Brandes

Infrared hybridized detectors are widely used in astronomy, and their performance can be degraded by image persistence. This results in remnant images that can persist in the detector for many hours, contaminating any subsequent…

Instrumentation and Methods for Astrophysics · Physics 2019-09-04 Simon Tulloch , Elizabeth George

This paper proposes a novel Machine Learning-based approach to solve a Poisson problem with mixed boundary conditions. Leveraging Graph Neural Networks, we develop a model able to process unstructured grids with the advantage of enforcing…

We introduce an analytical model for ideal organic laser diodes based on the argument that their intrinsic active layers necessitate operation in the bipolar space charge-limited current regime. Expressions for the threshold current and…

Materials Science · Physics 2021-03-10 Alex J. Grede , Noel C. Giebink

Understanding the interaction of charge carriers with lattice vibrations in the quasi-equilibrium regime is crucial for semiconductor functionality. However, the structural signatures of these interactions are often too subtle for…

Materials Science · Physics 2026-03-11 Guy Reuveni , Maya Levy Greenberg , Matan Menahem , Olle Hellman , Omer Yaffe

Scanning photocurrent maps of gapless materials, such as graphene, often exhibit complex patterns of hot spots positioned far from current-collecting contacts. We develop a general framework that helps to explain the unusual features of the…

Mesoscale and Nanoscale Physics · Physics 2015-01-06 Justin C. W. Song , Leonid S. Levitov

This article offers a new approach for analysing the dynamic behaviour of distributions of charged particles in an electromagnetic field. After discussing the limitations inherent in the Lorentz-Dirac equation for a single point particle a…

Accelerator Physics · Physics 2007-05-23 David A. Burton , Jonathan Gratus , Robin W. Tucker

Magnetic guiding fields in combination with energy dispersive semiconductor detectors have been employed already more than 50 years ago for in-beam internal conversion electron spectroscopy. Even then it was recognized that efficiency…

Instrumentation and Detectors · Physics 2015-03-25 H. Backe