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The shape of the undepleted volume of a p-type high-purity Broad Energy Germanium detector, dependent on the bias voltage, has been imaged by measuring spatially-resolved Compton-scattering efficiency. The bias voltage was raised stepwise…

Instrumentation and Detectors · Physics 2026-02-18 Iris Abt , Arthur Butorev , Felix Hagemann , David Hervas Aguilar , Johanna Lührs , Julia Penner , Oliver Schulz

The association of scanning transmission electron microscopy (STEM) and the detection of a diffraction pattern at each probe position (so-called 4D-STEM) represents one of the most promising approaches to analyze structural properties of…

Applied Physics · Physics 2023-01-26 Leonardo Corrêa , Eduardo Ortega , Arturo Ponce , Mônica Cotta , Daniel Ugarte

The possibility to study elastic and diffractive physics in pp collisions at LHC is investigated. For this purpose we have considered detectors close to the beam in conjunction with the magnetic elements of the accelerator to provide a high…

High Energy Physics - Phenomenology · Physics 2009-10-30 M. Arneodo , S. Maselli , C. Peroni

Directional detection of nuclear recoils is broadly desirable in nuclear and particle physics. At low recoil energies, this capability may be used to confirm the cosmological origin of a dark matter signal, to penetrate the so-called…

Instrumentation and Detectors · Physics 2021-10-13 Majd Ghrear , Sven E. Vahsen , Cosmin Deaconu

Transformation and detection of photons in higher-order spatial modes usually requires complicated holographic techniques. Detectors based on spatial holograms suffer from non-idealities and should be carefully calibrated. We report a novel…

Quantum Physics · Physics 2015-06-23 Ivan Bobrov , Egor Kovlakov , Anton Markov , Stanislav Straupe , Sergey Kulik

The application of a high purity germanium (HPGe) gamma spectrometer in determining the fuel element burnup in a future reactor is studied. The HPGe detector is exposed by a Co60 source with varying irradiation rate from 10 kcps to 150 kcps…

Instrumentation and Detectors · Physics 2013-05-07 Weihua Yan , Liguo Zhang , Zhao Zhang , Zhigang Xiao

An accurate determination of specimen thickness is essential for quantitative analytical electron microscopy. Here we demonstrate that a position-averaged incoherent bright-field signal recorded on an absolute scale can be used to determine…

Materials Science · Physics 2012-09-11 Huolin L. Xin , Ye Zhu , David A. Muller

Extensive simulations of a portable radiation detecting system have been performed in order to explore important performance parameters. The instrument consists of a stack of ten detecting layers made of pixelated Cadmium Telluride (CdTe)…

Instrumentation and Detectors · Physics 2011-01-21 K. Karafasoulis , K. Zachariadou , S. Seferlis , I. Kaissas , C. Lambropoulos , D. Loukas , C. Poritiriadis

A full-wave numerical scheme of polarisability tensors evaluation is presented. The method accepts highly conducting bodies of arbitrary shape and explicitly accounts for the radiation as well as ohmic losses. The method is verified on…

Computational Physics · Physics 2017-12-07 L. Jelinek , O. Kratky , M. Capek

Timepix3 pixel detectors have demonstrated great potential for tracking applications. With $256\times 256$ pixels, 55 $\mathrm{\mu}$m pitch and improved resolution in time (1.56 ns) and energy (2 keV at 60 keV), they have become powerful…

Data Analysis, Statistics and Probability · Physics 2022-02-09 Petr Mánek , Benedikt Bergmann , Petr Burian , Declan Garvey , Lukáš Meduna , Stanislav Pospíšil , Petr Smolyanskiy , Eoghan White

An investigation on stochastic deflection of high-energy charged particles in a bent crystal was carried out. In particular, we investigated the deflection efficiency under axial confinement of both positively and negatively charged…

The anatomical axis of long bones is an important reference line for guiding fracture reduction and assisting in the correct placement of guide pins, screws, and implants in orthopedics and trauma surgery. This study investigates an…

Image and Video Processing · Electrical Eng. & Systems 2020-07-07 Florian Kordon , Andreas Maier , Benedict Swartman , Maxim Privalov , Jan Siad El Barbari , Holger Kunze

Events from alpha interactions on the surfaces of germanium detectors are a major contribution to the background in germanium-based searches for neutrinoless double-beta decay. Surface events are subject to charge trapping, affecting their…

Instrumentation and Detectors · Physics 2026-02-17 Iris Abt , Christopher Gooch , Felix Hagemann , Lukas Hauertmann , Xiang Liu , Oliver Schulz , Martin Schuster , Anna Julia Zsigmond

Grazing incidence X-ray diffraction (GIXD) is widely used for the structural characterization of thin films, particularly for analyzing phase composition and the orientation distribution of crystallites. While various tools exist for…

Detecting baggage threats is one of the most difficult tasks, even for expert officers. Many researchers have developed computer-aided screening systems to recognize these threats from the baggage X-ray scans. However, all of these…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Taimur Hassan , Samet Akcay , Mohammed Bennamoun , Salman Khan , Naoufel Werghi

Oriented object detection predicts orientation in addition to object location and bounding box. Precisely predicting orientation remains challenging due to angular periodicity, which introduces boundary discontinuity issues and symmetry…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Xavier Bou , Gabriele Facciolo , Rafael Grompone von Gioi , Jean-Michel Morel , Thibaud Ehret

We present a design to generate structurally propagation invariant light beams carrying non-integer orbital angular momentum (OAM) using Hermite-Laguerre-Gaussian (HLG) modes. Different from previous techniques, the symmetry axes of our…

Optics · Physics 2013-03-25 A. M. Nugrowati , W. G. Stam , J. P. Woerdman

Scintillating homogeneous detectors represent the state of the art in electromagnetic calorimetry. Moreover, the currently neglected crystalline nature of the most common inorganic scintillators can be exploited to achieve an outstanding…

Semiconductor detector fabrication technologies developed decades ago are widely employed today to produce gamma-ray detectors from large volume, single crystals of high purity Ge (HPGe). Most all of these detectors are used exclusively for…

Instrumentation and Detectors · Physics 2018-09-17 Mark Amman

High purity germanium (HPGe) detectors are ubiquitous in nuclear physics experiments and are also used in numerous low radioactive background detectors. The effect of the position of $^{60}$Co and $^{137}$Cs point sources on the shape of…

Nuclear Experiment · Physics 2015-05-13 L. T. Evans , K. Andre , R. De , R. Henning , E. D. Morgan