Results 21 to 30 of about 21,719 (263)

Ultrashort Pulsed Neutron Source

open access: yesPhysical Review Letters, 2014
We report on a novel compact laser-driven neutron source with an unprecedented short pulse duration (10(18)  n/cm(2)/s), an order of magnitude higher than any existing source. In our experiments, high-energy electron jets are generated from thin (
I, Pomerantz   +15 more
openaire   +3 more sources

A prototype of the SiPM readout scintillator neutron detector for the engineering material diffractometer of CSNS

open access: yesNuclear Engineering and Technology, 2022
A high detection efficiency thermal neutron detector based on the 6LiF/ZnS(Ag) scintillation screens, wavelength-shifting fibers (WLSF) and Silicon photomultiplier (SiPM) readout is under development at China Spallation Neutron Source (CSNS) for the ...
Qian Yu   +10 more
doaj   +1 more source

Neutron Sources

open access: yes, 2013
This chapter reviews the most significant developments that have taken place in the design, construction, and operation of new neutron sources as well as the refurbishment programs of others already serving the neutron-scattering community. Such advances in neutron production devices are to be considered in conjunction with impressive achievements in ...
Bermejo, Francisco Javier, Sordo, F.
openaire   +3 more sources

Dynamic Analysis and Degenerate Hopf Bifurcation-Based Feedback Control of a Conservative Chaotic System and Its Circuit Simulation

open access: yesComplexity, 2021
A novel conservative chaotic system with no equilibrium is investigated in this study. Various dynamics such as the conservativeness, coexistence, symmetry, and invariance are presented.
Xiaojuan Zhang   +4 more
doaj   +1 more source

DENSS-multiple: A structure reconstruction method using contrast variation of small-angle neutron scattering based on the DENSS algorithm

open access: yesBBA Advances, 2022
The 3D structure of biomacromolecules, such as protein and DNA/RNA, provide keys to understanding their biological functions. Among many structural biology techniques, small-angle scattering techniques with ab initio methods have been widely used to ...
Jacob Sumner, Shuo Qian
doaj   +1 more source

Effects of Carboxyl or Amino Group Modified InP/ZnS Nanoparticles Toward Simulated Lung Surfactant Membrane

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Quantum dots (QDs) as a promising optical probe have been widely used for in vivo biomedical imaging; especially enormous efforts recently have focused on the potential toxicity of QDs to the human body.
Juan Wang   +3 more
doaj   +1 more source

Bending Behavior of a Wrought Magnesium Alloy Investigated by the In Situ Pinhole Neutron Diffraction Method

open access: yesCrystals, 2018
The tensile twinning and detwinning behaviors of a wrought magnesium alloy have been investigated during in situ four-point bending using the state-of-the-art high spatial resolution pinhole neutron diffraction (PIND) method.
Wei Wu   +5 more
doaj   +1 more source

Design and Initial Tests of a Fast Neutron Radiography Detector Prototype with Silicon Photomultiplier Readouts

open access: yesApplied Sciences
Among non-destructive testing (NDT) techniques, fast neutron radiography with a higher penetration capability has achieved rapid advancements. However, the application of the radiography detector in many fast neutron imaging systems is limited by ...
Xu Chen   +15 more
doaj   +1 more source

Timing properties of radioluminescence in nanoparticle ZnS:Ag scintillators

open access: yesOptical Materials: X, 2023
As neutron scattering facilities improve, new neutron detectors with high rate capabilities that can cope with increasing flux are required. Most scintillation detectors at neutron scattering facilities employ ZnS:Ag mixed with 6LiF.
S.E. Mann   +4 more
doaj   +1 more source

The Development and Application of Multi-Cell Elliptical Superconducting Cavity Pre-Tuning Equipment

open access: yesApplied Sciences
Elliptical superconducting cavities are widely used in particle accelerators because they can provide stronger acceleration fields than regular cavities. Pre-tuning is required to improve their performance, but the process is time-consuming.
Ahong Li   +10 more
doaj   +1 more source

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