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Exploring hit positions of recorded events can help to understand and suppress backgrounds in rare event searching experiments. In this study, we virtually segment a small contact P-type high purity germanium detector (HPGe) into two…

Instrumentation and Detectors · Physics 2024-09-06 W. H. Dai , H. Ma , Z. Zeng , L. T. Yang , Q. Yue , J. P. Cheng

A new method for measuring \ngr cross sections aiming at enhanced signal-to-background ratio is presented. This new approach is based on the combination of the pulse-height weighting technique with a total energy detection system that…

Instrumentation and Detectors · Physics 2015-10-15 César Domingo-Pardo

We present the results of new AGILE observations of PSR B1509-58 performed over a period of $\sim$2.5 years following the detection obtained with preliminary data. The modulation significance of the lightcurve above 30 MeV is at a 5$\sigma$…

High Energy Astrophysical Phenomena · Physics 2019-08-14 M. Pilia , A. Pellizzoni

Gas Electron Multipliers (GEMs) are used in many particle physics experiments, employing their 'standard' configuration with amplification holes of 140 um pitch in a hexagonal pattern. However, the collection of the charge cloud from the…

We present a method for applying spatially resolved adiabatic and radiative loss processes to synthetic radio emission from hydrodynamic simulations of radio sources from active galactic nuclei (AGN). Lagrangian tracer particles, each…

High Energy Astrophysical Phenomena · Physics 2022-02-23 Patrick M. Yates-Jones , Ross J. Turner , Stanislav S. Shabala , Martin G. H. Krause

A new model for the high-energy emission from pulsars is developed by considering charged particle motion in the fields of a spinning, highly magnetised and conducting sphere in vacuum. A generally applicable approximation to the particle…

Astrophysics · Physics 2015-06-24 M. G. Higgins , R. N. Henriksen

The plasma screening model, taking into account the electronic exchange-correlation effects and the ionic non-ideality in dense quantum plasmas, is presented. This model can be used as an input in various plasma interaction models to…

Plasma Physics · Physics 2024-10-10 S. K. Kodanova , T. S. Ramazanov , M. K. Issanova

We demonstrate a dispersive measurement pulse shaping technique that allows for arbitrarily fast quantum non-demolition, single-quadrature measurements of non-linear systems and unconditionally leaves the measurement resonator empty. For…

Quantum Physics · Physics 2018-09-13 Felix Motzoi , Lukas Buchmann , Christian DIckel

Recent progress on the development of very low noise high purity germanium ionization spectrometers has produced an instrument of 1.2 kg mass and excellent noise performance. The detector was installed in a low-background cryostat intended…

We report on the simulation results for the angular resolution of an electromagnetic (EM) sampling calorimeter with photons in the range of 100~MeV to 2~GeV. The simulation model of the EM calorimeter consists of alternating layers of a…

Instrumentation and Detectors · Physics 2023-04-26 Junlee Kim , Eun-Joo Kim , YoungJun Kim , JungKeun Ahn , GeiYoub Lim

Proportional scintillation counters (PSCs), both single- and dual-phase, can measure the scintillation (S1) and ionization (S2) channels from particle interactions within the detector volume. The signal obtained from these detectors depends…

Instrumentation and Detectors · Physics 2016-03-23 Kareem Kazkaz , Tenzing Henry Yatish Joshi

The detection of irregularly spaced pulses of non-negligible width is a fascinating yet under-explored topic in signal processing. It sits adjacent to other core topics such as radar and symbol detection yet has its own distinctive…

Signal Processing · Electrical Eng. & Systems 2025-03-11 Jonathan H. Manton

The traditional, geometrical rotating vector model (RVM) has proved particularly poor at capturing the polarization sweeps of the young energetic and millisecond pulsars detected by \textit{Fermi}. We augment this model by including finite…

High Energy Astrophysical Phenomena · Physics 2015-06-22 H. A. Craig

A system employing a desktop FADC has been developed to investigate the features of 8 inches Hamamatsu PMT. The system stands out for its high-speed and informative results as a consequence of adopting fast waveform sampling technology.…

Accurate charge densities are essential for reliable electronic structure calculations because they significantly impact predictions of various chemical properties and in particular, according to the Hellmann-Feynman theorem, atomic forces.…

Chemical Physics · Physics 2025-03-12 Moritz Gubler , Moritz R. Schäfer , Jörg Behler , Stefan Goedecker

Automatic image segmentation is a critical component of medical image analysis, and hence quantifying segmentation performance is crucial. Challenges in medical image segmentation are mainly due to spatial variations of regions to be…

Image and Video Processing · Electrical Eng. & Systems 2021-09-09 Ammu R , Neelam Sinha

Atom-interferometric quantum sensors could revolutionize navigation, civil engineering, and Earth observation. However, operation in real-world environments is challenging due to external interference, platform noise, and constraints on…

We report an analytical example of the gravitational wave memory effect in exact plane wave spacetimes. A square pulse profile is chosen which gives rise to a curved wave region sandwiched between two flat Minkowski spacetimes. Working in…

General Relativity and Quantum Cosmology · Physics 2022-04-05 Indranil Chakraborty , Sayan Kar

A large number of high-energy and heavy-ion experiments successfully used Time Projection Chamber (TPC) as central tracker and particle identification detector. However, the performance requirements on TPC for new high-rate particle…

Instrumentation and Detectors · Physics 2013-02-14 M. Poli Lener , M. Bazzi , G. Corradi , C. Curceanu , A. D'Uffizi , C. Paglia , A. Romero Vidal , E. Sbardella , A. Scordo , D. Tagnani , J. Zmeskal

Numerical modeling of electromagnetic waves is an important tool for understanding the interaction of light and matter, and lies at the core of computational electromagnetics. Traditional approaches to injecting and evolving electromagnetic…

Computational Physics · Physics 2023-07-12 K. Weichman , K. G. Miller , B. Malaca , W. B. Mori , J. R. Pierce , D. Ramsey , J. Vieira , M. Vranic , J. P. Palastro
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