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Neutron reflectometry is a critical tool for investigating the structure of thin films and interfaces. However, the misapplication of the Born approximation to reflection geometry leads some to assume that the minimum thickness that may be…

Soft Condensed Matter · Physics 2024-03-21 Nicolas Shiaelis , Luke A. Clifton , Andrew R. McCluskey

The demand for new thermal neutron detectors as an alternative to 3He tubes in research, industrial, safety and homeland security applications, is growing. These needs have triggered research and development activities about new generations…

Instrumentation and Detectors · Physics 2018-01-09 Paolo Finocchiaro , Luigi Cosentino , Sergio Lo Meo , Ralf Nolte , Desiree Radeck

The response of a position-sensitive Li-glass scintillator detector being developed for thermal-neutron detection with 6 mm position resolution has been investigated using collimated beams of thermal neutrons. The detector was moved…

In this paper, we present an Assertion-based Multi-View Fusion network (AMVNet) for LiDAR semantic segmentation which aggregates the semantic features of individual projection-based networks using late fusion. Given class scores from…

Computer Vision and Pattern Recognition · Computer Science 2020-12-10 Venice Erin Liong , Thi Ngoc Tho Nguyen , Sergi Widjaja , Dhananjai Sharma , Zhuang Jie Chong

The information content of atomic resolution scanning transmission electron microscopy (STEM) images can often be reduced to a handful of parameters describing each atomic column, chief amongst which is the column position. Neural networks…

Materials Science · Physics 2023-02-22 Jingrui Wei , Ben Blaiszik , Aristana Scourtas , Dane Morgan , Paul M. Voyles

The feasibility of performing fast neutron resonance radiography at the PTB accelerator facility is studied. A neutron beam of a broad spectral distribution is produced by a pulsed 13 MeV deuterium beam hitting a thick Be target. The…

Nuclear Experiment · Physics 2007-05-23 V. Dangendorf , G. Laczko , C. Kersten , O. Jagutzki , U. Spillmann

1D or 2D neutron imaging detectors with individual wire or strip readout using discriminators have the advantage of being able to treat several neutron impacts partially overlapping in time, hence reducing global dead time. A single neutron…

Recent advances in transformer-based models have drawn attention to exploring these techniques in medical image segmentation, especially in conjunction with the U-Net model (or its variants), which has shown great success in medical image…

Image and Video Processing · Electrical Eng. & Systems 2021-10-22 Xiangyi Yan , Hao Tang , Shanlin Sun , Haoyu Ma , Deying Kong , Xiaohui Xie

The DEPFET collaboration develops highly granular, ultra-transparent active pixel detectors for high-performance vertex reconstruction at future collider experiments. The characterization of detector prototypes has proven that the key…

A new neutron detector based on Micromegas technology has been developed for the measurement of the simulated neutron spectrum in the ADS project. After the presentation of simulated neutron spectra obtained in the interaction of 140 MeV…

The uncertainty in the initial neutrino flux is the main limitation for a precise determination of the absolute neutrino cross section. The ERC funded ENUBET project (2016-2021) is studying a facility based on a narrow band beam to produce…

The Compact Neutron Spectrometer (CNS) is a Joint European Torus (JET) Enhancement Project, designed for fusion diagnostics in different plasma scenarios. The CNS is based on a liquid scintillator (BC501A) which allows good discrimination…

Instrumentation and Detectors · Physics 2012-03-27 F. Gagnon-Moisan , M. Reginatto , A. Zimbal

We present a novel methodology of augmenting the scattering data measured by small angle neutron scattering via an emerging deep convolutional neural network (CNN) that is widely used in artificial intelligence (AI). Data collection time is…

Instrumentation and Detectors · Physics 2019-06-04 Ming-Ching Chang , Yi Wei , Wei-Ren Chen , Changwoo Do

Two detectors for energy-resolved fast-neutron imaging in pulsed broad-energy neutron beams are presented. The first one is a neutron-counting detector based on a solid neutron converter coupled to a gaseous electron multiplier (GEM). The…

i-TED is an innovative detection system which exploits Compton imaging techniques to achieve a superior signal-to-background ratio in ($n,\gamma$) cross-section measurements using time-of-flight technique. This work presents the first…

Instrumentation and Detectors · Physics 2024-10-17 V. Babiano-Suárez , J. Lerendegui-Marco , J. Balibrea-Correa , L. Caballero , D. Calvo , I. Ladarescu , C. Domingo-Pardo , F. Calviño , A. Casanovas , A. Tarifeño-Saldivia , V. Alcayne , C. Guerrero , M. A. Millán-Callado , M. T. Rodríguez González , M. Barbagallo , O. Aberle , S. Amaducci , J. Andrzejewski , L. Audouin , M. Bacak , S. Bennett , E. Berthoumieux , J. Billowes , D. Bosnar , A. Brown , M. Busso , M. Caamaño , M. Calviani , D. Cano-Ott , F. Cerutti , E. Chiaveri , N. Colonna , G. Cortés , M. A. Cortés-Giraldo , L. Cosentino , S. Cristallo , L. A. Damone , P. J. Davies , M. Diakaki , M. Dietz , R. Dressler , Q. Ducasse , E. Dupont , I. Durán , Z. Eleme , B. Fern\' , ez-Domínguez , A. Ferrari , P. Finocchiaro , V. Furman , K. Göbel , R. Garg , A. Gawlik , S. Gilardoni , I. F. Gonçalves , E. González-Romero , F. Gunsing , H. Harada , S. Heinitz , J. Heyse , D. G. Jenkins , A. Junghans , F. Käppeler , Y. Kadi , A. Kimura , I. Knapova , M. Kokkoris , Y. Kopatch , M. Krtička , D. Kurtulgil , C. Lederer-Woods , H. Leeb , S. J. Lonsdale , D. Macina , A. Manna , T. Martinez , A. Masi , C. Massimi , P. Mastinu , M. Mastromarco , E. A. Maugeri , A. Mazzone , E. Mendoza , A. Mengoni , V. Michalopoulou , P. M. Milazzo , F. Mingrone , J. Moreno-Soto , A. Musumarra , A. Negret , F. Ogállar , A. Oprea , N. Patronis , A. Pavlik , J. Perkowski , L. Persanti , C. Petrone , E. Pirovano , I. Porras , J. Praena , J. M. Quesada , D. Ramos-Doval , T. Rauscher , R. Reifarth , D. Rochman , C. Rubbia , M. Sabaté-Gilarte , A. Saxena , P. Schillebeeckx , D. Schumann , A. Sekhar , A. G. Smith , N. V. Sosnin , P. Sprung , A. Stamatopoulos , G. Tagliente , J. L. Tain , L. Tassan-Got , Th. Thomas , P. Torres-Sánchez , A. Tsinganis , J. Ulrich , S. Urlass , S. Valenta , G. Vannini , V. Variale , P. Vaz , A. Ventura , D. Vescovi , V. Vlachoudis , R. Vlastou , A. Wallner , P. J. Woods , T. Wright , P. Žugec

The DEPFET Collaboration pursues the development of a high resolution pixel vertex detector for future colliders (like ILC), based on the integration of amplifying transistors into a fully depleted bulk. In August 2008, six DEPFET…

Instrumentation and Detectors · Physics 2009-01-30 C. Marinas

For object detection, the two-stage approach (e.g., Faster R-CNN) has been achieving the highest accuracy, whereas the one-stage approach (e.g., SSD) has the advantage of high efficiency. To inherit the merits of both while overcoming their…

Computer Vision and Pattern Recognition · Computer Science 2018-01-04 Shifeng Zhang , Longyin Wen , Xiao Bian , Zhen Lei , Stan Z. Li

In non-destructive evaluation with X-rays light elements embedded in dense, heavy (or high-Z) matrices show little contrast and their structural details can hardly be revealed. Neutron radiography, on the other hand, provides a solution for…

Instrumentation and Detectors · Physics 2015-02-03 A. S. Tremsin , V. Dangendorf , K. Tittelmeier , B. Schillinger , M. Schulz , M. Lerche , W. B. Feller

The emission of neutrons from heavy ion reactions is an important observable for studying the asymmetric nuclear equation of state and the reaction dynamics. A 20-unit neutron array has been developed and mounted on the compact spectrometer…