Neutron scattering - PowerPoint PPT Presentation

The European Spallation Source (ESS) Neutron Instrument Project aims to develop 15 world-leading neutron instruments by 2023. The project involves instrument classes, performance targets, budget considerations, and a planned schedule for instrument commencement. The NSS project scope includes reduci

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Neutron stars, initially proposed in 1933, have been the subject of various discoveries and studies. They are characterized by their unique properties such as compactness, high density, rapid spinning, and strong magnetic fields. Neutron stars are predominantly composed of neutrons, with other parti

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This project proposal outlines a research opportunity at Oak Ridge National Laboratory (ORNL) focusing on forefront scientific problems and the strategic value of neutron scattering techniques. Graduate students will benefit from valuable experience and collaboration opportunities during their time

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Explore the neutron multiplicity measurement in muon capture on oxygen using Super-Kamiokande, a water-Cherenkov detector located underground in Japan. Gadolinium was added to enhance neutron tagging efficiency, aiding in Supernova observation, proton decay rejection, and more. Neutron signals are t

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The University of Michigan, under the guidance of Dr. Sara A. Pozzi, conducts cutting-edge fission experiments leveraging organic scintillation detectors. These detectors offer advantages such as nanosecond-scale response times, energy proportionality, and scalability. The experiments focus on impro

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Exploring the fascinating realm of neutron stars through astronomical observations and the implications for equations of state (EOS). Delve into the mysteries of neutron star properties, measurement results from projects like PREX/CREX, and the significance of NS masses, tidal deformabilities, and r

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Direct excitation of acoustic normal modes in horizontally stratified oceanic waveguides is negligible for shallow earthquakes due to velocity disparities. This study evaluates the contribution of scattering by hydrodynamic waves in generating abyssal T-waves. The research explores the role of scatt

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Reactor start-up is a crucial operation that transitions a reactor from a subcritical state to a critical state by carefully adjusting reactivity levels. In a subcritical reactor, the neutron density should decrease over time but may not reach zero due to certain factors. Neutron multiplication fact

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The CEPC beam energy calibration with Compton scattering method led by Yongsheng Huang and the CEPC energy calibration working group involves collaborations with various institutions and organizations. The project includes detailed physics requirements, system designs, and implementation plans for b

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Investigate the interaction of dark matter within neutron stars, comprising approximately 25% of the universe's total matter. The nature of dark matter assumptions, its distribution within neutron stars based on fermionic or bosonic properties, and the implications for self-interacting fermionic and

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Multiple scattering programs like MSCAT and DISCUS, written in Fortran since the 70s, are essential tools for neutron diffraction and inelastic analysis. These programs allow for the calculation of neutron cross-sections, scattering angles, and sample geometries. The results obtained include elastic

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In the study of semiconductor conductivity, the concept of degenerate and non-degenerate semiconductors is discussed, showcasing the impact of doping levels. The conductivity equation is explored in terms of electron and hole mobilities and densities. The role of scattering mechanisms, such as latti

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The 3rd Symposium on Positron Emission Tomography and 1st Symposium on Boron Neutron Capture Therapy focused on Time-Over-Threshold calibration within the framework of J-PET. The event outlined experimental details, event selection, results, and key features of the Jagiellonian Positron Emission Tom

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The presentation discusses cascaded cooling of neutrons and Namiot's proposal for phononless cooling to low temperatures using polarized deuterons. It explores inelastic scattering cross-sections, candidate paramagnetic systems, and excitations in O2. Additionally, it covers rate constants, superflu

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This proposal focuses on introducing a Mixed Elastic Scattering format to address the need for a more rigorous treatment of thermal elastic scattering effects in selected nuclides. The format extension, compatible with ENDF-6, supports advanced moderator development without impacting existing TSL ev

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Measurements of spin observables in elastic pp and p(bar)p scattering at 16 GeV will be conducted at the SPASCHARM program using a unique setup with polarized proton and antiproton beams. The experiment aims to extend the energy range for spin studies and compare elastic scattering in pp and p(bar)p

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The study evaluates the MURR Thermal BNCT Facility's effectiveness in treating canine nasal/sinus tumors using a phantom. The facility, located at the University of Missouri Research Reactor, offers Boron Neutron Capture Therapy (BNCT) under the direction of Dr. Fred Hawthorne. Key features include

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Virtual router (vRouter) is a crucial component in network virtualization, with applications in cloud environments like Openstack Neutron. This article delves into the concept of vRouter, its importance in IPv6 implementations, and the utilization of VM-based vRouters. It also explores the current s

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Understanding neutron detection basics, absorption cross-section, moderators, positioning, and common detector types is crucial for accurate measurements. Neutrons vary in energy levels, requiring specific detection techniques. Thermal neutrons are easier to detect than fast ones, with materials lik

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A detailed exploration of Monte Carlo simulations for GEM-based neutron detectors, investigating their detection efficiency and performance characteristics. Various detector designs and concepts, including multi-layer converters and GEM detectors, are discussed, along with simulation results on sign

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This project focuses on developing a compact neutron spectrometer, NS-GEM, using gas electron multiplier detector technology for fusion plasma applications. The goal is to achieve high energy resolution, low sensitivity to γ-rays, and high count rate capabilities for accurate neutron measurements.

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Delve into the intriguing link between neutron star mergers and the synthesis of ultra heavy element cosmic rays. The rapid neutron capture process, known as r-process, plays a crucial role in creating elements heavier than iron through events like neutron star mergers and core-collapse supernovae.

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Recent work by Allan D. Carlson, a NIST associate under contract with BNL, was presented at the CSEWG meeting discussing possible changes to neutron standards and showcasing important measurements, such as H(n,n)H angular distribution data by Jiang et al. and 6Li(n,t) reaction measurements by Bai et

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Intra-Beam Scattering (IBS) effects near transition crossing in NICA collider result in energy exchange between different degrees of freedom, impacting beam size, luminosity, and lifetime. The IBS phenomenon is crucial for circular machines, with theoretical developments by Piwinski and Bjorken shap

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Single-nucleon knock-out reactions in neutron-rich medium-mass nuclei were studied to investigate the reduction of proton-removal cross section. Short-range correlated nucleon pairs, especially protons, were found to impact the probability of single-proton removal processes. Experimental measurement

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Overview of polarized THz wave scattering from slightly rough surfaces such as wooden tables and walls. The document discusses the induced interference between short-distance THz links and presents a model of electromagnetic wave scattering with examples of experimental and numerical results. Potent

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Delve into the realm of nuclear physics with a focus on nuclear radii and electron scattering experiments led by lecturer Hans-Jürgen Wollersheim. Explore topics such as de Broglie wavelength, double-slit experiment, Mott scattering, charge distribution, and the use of electrons as probes to measur

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The IAEA Collaborative Research Project focused on compiling neutron data for over 600 precursors to enhance understanding of beta-delayed neutron emission. Their efforts included sensitivity studies, validation of new values, standards evaluation, and systematics development to extend results to un

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A Geant4 application has been developed to simulate the response of the Advanced Neutron Spectrometer (ANS) and investigate meeting the instrument requirements. The simulation involves a scintillator-based detector with photomultiplier tubes, lithium glass fibers for neutron capture, and optical pro

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This content discusses various topics related to neutron usage and innovation, including education, awards, user organization, and best practices. It emphasizes funding for e-learning, maintaining portals, and developing virtual instruments for training. Furthermore, it highlights the importance of

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This study presents findings on nuclear structure information obtained from cross section measurements conducted by A. Negret, C. Borcea, and A. Olacel at Horia Hulubei National Institute for Physics and Nuclear Engineering in Romania. The measurements include neutron inelastic cross section studies

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Delve into the realm of dense nuclear matter and neutron stars with a focus on the Quark-Meson-Coupling theory. Discover the significance of neutron stars in constraining the Equation of State and the interplay between different nuclear theories. Uncover insights into heavy neutron stars, the Hypero

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This document outlines plans for a mid-term session on nuclear physics in Italy, focusing on neutron detectors and their applications. Various detectors such as organic scintillators, silicon detectors, and innovative neutron detectors are discussed, highlighting ongoing R&D efforts, expected timeli

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Explore the discussion topics and evaluations presented in the Mini-CSEWG Meeting for targeted strategic investments to prepare for ENDF/B-IX TSL validation. The session covers new/revised TSL evaluations, alternate enrichment treatments, and the need for thermal scattering laws for various fuel com

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Explore the concepts of scattering theory, phase shifts, optical theorem, and Born approximation in quantum mechanics. Understand the differential scattering cross-section and probability of particle scattering through spherically symmetric interaction potentials.

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Explore how FLUKA simulations are used to enhance the Frascati Neutron Generator (FNG) for neutron fusion research. Learn about upgrades, trigger systems, and cross-section challenges in neutron production.

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Explore the principles of light scattering for polymer characterization, including static and dynamic forms, elastic and inelastic scattering, and measurement schemes. Learn how light scattering determines polymer size, distribution, and molecular weight in solution, aiding in intricate analyses of

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Explore the Pulsed-Neutron Die-Away (PNDA) benchmark experiment involving the interaction of 14 MeV neutrons with water, providing insights into thermal and spatial equilibrium, neutron flux behavior, and sensitivity to scattering properties. Discover how this experiment offers a cost-effective appr

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Explore the concept of multipole analysis in electromagnetic scattering, including multipole expansion, coefficients, Mie scattering, COMSOL implementation, and associated Legendre polynomials. Learn how to extract crucial information from scattering models and optimize simulations efficiently.

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Explore the chain neutron multiplication process in reactors, where neutrons go through generations, influencing reactor behavior. Simplifications in an infinite, homogeneous medium are discussed, along with the concept of neutron multiplication factor determining neutron density behavior.

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