Results 121 to 130 of about 24,053 (253)

Electroluminescence and Franz–Keldysh Modulation Observed in Sn/Ge Multi‐Quantum Wells

open access: yesAdvanced Optical Materials, Volume 14, Issue 9, 6 March 2026.
We investigate the optoelectronic properties of PIN diodes based on ultrathin α‐Sn/Ge multiple quantum film structures, fabricated by molecular beam epitaxy, both experimentally and theoretically. The samples exhibit a light emission spectrum in the short‐wavelength infrared range with two transitions. Furthermore, when operating as a photodetector, we
Michael Oehme   +9 more
wiley   +1 more source

Developing a 2D position-sensitive detector utilizing the large plate plastic scintillator

open access: yesNuclear Engineering and Technology
This study introduces a novel position-sensitive detector based on plate-shaped plastic scintillator. The detector, consisting of a 50 × 5 × 50 cm plastic scintillator coupled to four photomultiplier tubes, was designed to pinpoint the 2D location of ...
Javad Kochakpour   +3 more
doaj   +1 more source

Technical manual: a survey of scintillating medium for high-energy particle detection [PDF]

open access: yes, 2016
There are various particle detection methods used nowadays and the most common is using scintillators. Among scintillating materials, solid plastic and water-based liquid scintillators (WbLS) are the latest development.
Baitenov, Adil   +2 more
core   +2 more sources

Microwave Ultrafast Heating on Iron‐based Nanogap Catalysts for CO2 Reduction Coupling with Coke Removal

open access: yesAdvanced Science, Volume 13, Issue 13, 3 March 2026.
This study employs a nanogap‐induced microwave discharge strategy to pretreat coke deposits on iron‐based catalysts with engineered nanogaps, causing ultrarapid heating to 1990 K within seconds, selectively eliminating >70% surface carbon deposits and converting waste plastics and greenhouse gases into syngas.
Xi Shen   +4 more
wiley   +1 more source

Long-Term Afterglow Measurement of Scintillators after Gamma Irradiation

open access: yesJournal of Nuclear Engineering
The long-term afterglow of scintillators is an important aspect, especially when the light signal from a scintillator is evaluated in the current mode.
Ladislav Viererbl   +2 more
doaj   +1 more source

Structure‐Function Integration in 2D Hybrid Perovskite for Fast Neutron and Gamma Ray Discrimination

open access: yesAdvanced Science, Volume 13, Issue 13, 3 March 2026.
Using an in situ seed‐assisted cooling method, large (28 × 7 × 3 mm3) (GABA)2PbBr4 single crystals are grown, featuring hydrogen‐rich organic layers and a dense PbBr4 framework. This architecture enables efficient γ‐ray absorption, fast‐neutron sensitivity, and clear n/γ pulse‐shape discrimination (FOM up to 1.74), highlighting its potential as a ...
Yingming Wang   +15 more
wiley   +1 more source

Readily Programmable, Body Temperature‐Responsive Liquid Crystal Elastomers With Dynamic Covalent Thiourea Bonds

open access: yesMacromolecular Rapid Communications, Volume 47, Issue 5, 6 March 2026.
We present body temperature‐responsive exchangeable liquid crystal elastomers (xLCEs) incorporating dynamic covalent thiourea bonds. The actuation temperature is tuned by adjusting the comonomer composition to weaken intermolecular mesogen interactions, enabling responsiveness near body temperature (∼36°C).
Jin‐Hyeong Lee   +4 more
wiley   +1 more source

Multileaf Faraday cup for beam energy verification in radiation therapy with ultra‐high dose‐rate electron beams and ion beams

open access: yesMedical Physics, Volume 53, Issue 3, March 2026.
Abstract Background In radiotherapy and particle therapy, the stability of the beam energy must be checked routinely during quality assurance. This is of particular importance when varying the dose rate via the beam intensity of the accelerator in order to study the FLASH effect when comparing irradiations with conventional and ultra‐high dose rates ...
Christoph Makowski   +3 more
wiley   +1 more source

Comparison of the Coating Structure of Silicon‐Based PECVD Coatings With Varying Organic Content

open access: yesPlasma Processes and Polymers, Volume 23, Issue 3, March 2026.
Silicon‐based PECVD coatings transition abruptly from organic SiOCH to oxidic SiOx at ~32 at% silicon, exhibiting threshold behavior in barrier performance. Chemical composition seems to dominate over porosity: SiOx coatings unexpectedly show higher porosity yet superior barrier properties, possibly due to rigid cage‐like molecular structures ...
Jonas Franke   +7 more
wiley   +1 more source

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