Results 51 to 60 of about 1,958 (178)

Stress‐to‐Light Conversion in an Earth‐Abundant Oxide Semiconductor

Advanced Science, Volume 13, Issue 43, 3 August 2026.
Stress‐to‐light conversion in solids represents a unique photonic functionality, yet it has never been realized in a chemically simple and sustainable material. Here, we show that sustainable semiconductor ZnO exhibits strong near‐infrared (NIR) luminescence under elastic stress when defect‐engineered to stabilize the p‐type state.
Tomoki Uchiyama, Koki Otonari, Reona Omori, Guangfa Yang, Eiji Nishibori, Ying Chen, Xu‐Guang Zheng, Chao‐Nan Xu   +7 more
wiley   +1 more source

Sobre la cronología del inicio de la imposición cuzqueña en Chile

Estudios Atacameños, 2014
Se discute la cronología en que el norte y centro de Chile fue incorporado al Tawantinsuyu. Partiendo de la ya generalizada opinión acerca de que la fecha de 1470 DC para la incorporación de estos territorios, propuesta a partir de los estudios clásicos
Luis Eduardo Cornejo Bustamante
doaj   +2 more sources

Synthesis and Characterization of a Compositionally Complex Aluminum Garnet Ceramic Scintillator: (Gd,Y,Tb,Lu)3Al5O12:Ce

Journal of the American Ceramic Society, Volume 109, Issue 8, August 2026.
ABSTRACT High‐energy X‐ray radiography plays a critical role in national security as it is used to scan cargo for illicit materials, including special nuclear materials. However, currently used scintillators face cost or performance drawbacks, driving the search for superior alternatives.
Kaden Anderson, Nathan Gillespie, Luis Stand, Marlena Alexander, Rebecca Lalk, Matthias Müller, Nicholas Anastasi, Jaroslaw Glodo, Charles Melcher, Mariya Zhuravleva   +9 more
wiley   +1 more source

Mono‐ and Bilayer MoS2 Photodetectors: High‐Performance Broadband AC Readout With Color‐Selective Noise Suppression

Advanced Optical Materials, Volume 14, Issue 28, 24 July 2026.
Mono‐ and bilayer MoS2 photodetectors enable wavelength‐selective AC photoresponse and optically driven capacitance modulation under visible illumination. Green excitation produces the strongest cumulative capacitive response, consistent with trap‐mediated charge accumulation at mono/bilayer and metal–MoS2 interfaces.
Pegah Zandi, Mengqi Fang, Arindam Phani, Muhammad Toyabur Rahman, Eui‐Hyeok Yang, Seonghwan Kim   +5 more
wiley   +1 more source

Development and evaluation of an in vivo dose‐based monitoring system for electron FLASH radiation therapy

Medical Physics, Volume 53, Issue 7, July 2026.
Abstract Background FLASH radiotherapy requires further preclinical and clinical investigation to establish its biological effectiveness and define optimal beam parameters. In conventional (CONV) radiotherapy, redundant beam termination systems are a cornerstone ensuring patient safety, yet analogous safeguards for FLASH delivery are not well ...
Justin DeFrancisco, Matthew Richeson, Tomaj Javidtash, Chris Bartee, Tianjun Ma, Siyong Kim   +5 more
wiley   +1 more source

From Photons to Persistent Memory: Optically Controlled Trap Engineering Enables Secure, Hierarchical Optical Storage

National Materials, Volume 1, Issue 1, Page 16-23, July 2026.
This work demonstrates a novel optical storage method using a tailored electron‐trapping phosphor, MgGeO3:Mn,Yb,Eu. Up‐conversion charging enables high‐resolution writing via two‐photon ionization, whereas trap engineering uses ambient light to shift electrons between traps.
Xueqing Liu, Lu Chen, Tingxing Shi, Bingbing Yang, Feng Liu, Zhenzhong Zhang, Jun Li, Yichun Liu   +7 more
wiley   +1 more source

CT-Dose Measurement of the Spinal Cord Region Using XR-QA2 Radiochromic Films and TLD 100H Dosimeters

Instruments, 2020
The European Directive 2013/59/Euratom focuses on the radiation protection and patient dosimetry. In particular, the dose absorbed by serial organs such as the spinal cord due to diagnostic exams plays a crucial role in the appraisal of medical exposure.
Martina Pace, Giuseppe Stella, Letizia Barone Tonghi, Stefania Mazzaglia, Anna Maria Gueli   +4 more
doaj   +1 more source

Determine dose-saturation level from thermoluminescence curves by the GOK and OTOR models

Journal of Taibah University for Science, 2018
This study shows that the pre-exponential frequency in the general-orders of kinetics (GOK) model depends on the ratio between the initial number of trapped electrons (n0) and the total concentration of trapping states (N) as well as the frequency factor.
Nguyen Duy Sang, Nguyen Van Hung, Tran Van Hung, Nguyen Quoc Hien   +3 more
doaj   +1 more source

Effect of particle size in the TL response of natural quartz sensitized by high dose of gamma radiation and heat-treatments

Materials Research, 2010
This work investigates the effect of particle size in the thermoluminescence (TL) response of a quartz crystal that was initially crushed and classified into ten size fractions between 38 μm and 5 mm.
Álvaro Barbosa de Carvalho Jr, Pedro Luiz Guzzo, Henry Lavalle Sullasi, Helen Jamil Khoury   +3 more
doaj   +1 more source

MTS-6 detectors calibration by using 239Pu-Be neutron source

Medycyna Pracy, 2017
Background: Thermoluminescent detectors, type MTS-6, containing isotope 6Li (lithium) are sensitive in the range of thermal neutron energy; the 239Pu-Be (plutonium-and-beryllium) source emits neutrons in the energy range from 1 to 11 MeV. These seemingly
Małgorzata Wrzesień, Łukasz Albiniak, Hiba Al-Hameed   +2 more
doaj   +1 more source