Results 71 to 80 of about 2,906 (200)

On-axis orphan afterglows

New Astronomy, 2003
In many GRB inner engine models the highly relativistic GRB jets are engulfed by slower moving matter. This could result in different beaming for the prompt $γ$-ray emission and for the lower energy afterglow. In this case we should expect that some observer will see {\it on-axis orphan afterglows}: X-ray, optical and radio afterglows within the ...
Nakar, Ehud, Piran, Tsvi
openaire   +2 more sources

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Short-range charge transfer for efficient ultra-narrowband deep blue afterglow

Nature Communications
Efficient and narrowband blue organic afterglow materials are critical components for advanced optoelectronic applications, but so far, have been rarely explored. Herein, we report short-range charge transfer-assisted high efficiency and ultra-narrowband
Xin Zou, Nan Gan, Zhenyi Lin, Huili Ma, Yanxin Wu, Anqi Lv, Zhongfu An, Long Gu, Wei Huang   +8 more
doaj   +1 more source

Gel transformation fabrication of carbon nanodots incorporated chiral MOF film for circularly polarized afterglow

Nano Research
Chiral metal-organic frameworks (MOF) composite materials hold great potential for circularly polarized luminescence (CPL) applications, but achieving circularly polarized afterglow remains significant challenging.
Zhi-Chen Zhang, Shui-Ming Jing, Qing-Rong Ding, Li-Mei Chang, Zhi-Gang Gu, Jian Zhang   +5 more
doaj   +1 more source

Beam profile indicator for swift heavy ions using phosphor afterglow

AIP Advances, 2012
In this letter, we report a beam profile indicator for swift heavy ions (SHIs) which utilizes the afterglow of phosphors. Clear marks are left on SrAl2O4:Eu2+ and CaSrAl2Si2O8:Eu2+ samples by SHI irradiation through a permanent change of their afterglow ...
T. Z. Zhan, C. N. Xu, H. Yamada, Y. Terasawa, L. Zhang, H. Iwase, M. Kawai   +6 more
doaj   +1 more source

Low‐Loading Toughening and Interfacial Effects of TiO2 ALD‐Coated SrAL2O4:Eu2+,Dy3+ Phosphor–Epoxy Composites

Polymer Composites, EarlyView.
Schematic illustration of mechanoluminescence in SA2‐Green/Epoxy composite under tensile stress. ABSTRACT This study investigates the mechanical performance and photoluminescence of SrAl2O4:Eu2+,Dy3+ phosphor–epoxy composites as a function of filler loading.
Erkul Karacaoglu, Sakir Yazman, Mark D. Losego, Mesut Uyaner   +3 more
wiley   +1 more source

Decay of metastable atoms in the afterglow of single-electrode breakdown

Physics of Complex Systems
This paper deals with experimental studies of ionization waves igniting the breakdown in long discharge tubes in neon at low pressures. Ionization waves were produced by rectangular voltage pulses applied to the high-voltage electrode of the discharge ...
Владислав Витальевич Залетов, Александр Игоревич Шишпанов, Юрий Зиновьевич Ионих   +2 more
doaj  

Photoluminescence and afterglow of Tb3+ doped BaAl2O4

Results in Physics
Tb3+ doped BaAl2O4 phosphors (0–9.0 mol%) were prepared through sol–gel combustion method. The crystal structure, morphology, chemical composition, photoluminescence (PL), afterglow and thermoluminescence (TL) glow curve of Tb3+ doped BaAl2O4 were ...
Yungao Cai, Xiaomin Wang, Yuan Ming Huang   +2 more
doaj   +1 more source

Flexible composite scintillators based on ZnWO4 micro- and nanopowders

Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2019
Nano-sized and micro-sized ZnWO4 powders were obtained by different methods: hydrothermal synthesis with microwave heating, molten salt method, solid-state synthesis and сrushing of bulk crystals.
V. Tinkova, A. Yakubovskaya, I. Tupitsyna, S. Abashin, A. Puzan, S. Tretyak   +5 more
doaj   +1 more source

Machine learning‐driven advances in carbon‐based quantum dots: Opportunities accompanied by challenges

Responsive Materials, EarlyView.
Machine learning provides a unifying framework to connect structure, fluorescence properties, and applications of carbon‐based quantum dots. This review highlights how data‐driven strategies enable fluorescence regulation, reveal underlying mechanisms, and accelerate the rational design of functional carbon dots.
Liangfeng Chen, Siwei Yang, Xiangqian Cui, Ziheng Liu, Hang Wang, Yongqiang Li, Peng He, Miao Wang, Guqiao Ding   +8 more
wiley   +1 more source