Results 61 to 70 of about 1,161 (162)

Development of a radiation detection system for the prevention of illicit trafficking of special nuclear materials and radiation sources [PDF]

open access: yesEPJ Web of Conferences
A comprehensive analysis of a novel dual-mode radiation detection system developed for preventing illicit trafficking of special nuclear materials and radioactive sources is presented.
Marques Luís   +3 more
doaj   +1 more source

Degradation Mechanisms of Rutile‐Type TiO2 Photoanodes during Photoelectrochemical Water Splitting

open access: yesAdvanced Energy Materials, EarlyView.
Combining operando dissolution measurements with microscopy and spectroscopy characterizations, we reveal different degradation mechanisms of rutile‐type TiO2 photoanodes during photoelectrochemical water splitting. In acidic electrolytes, degradation is inhibited once TiO2 reaches saturation.
Yiqun Jiang   +12 more
wiley   +1 more source

EQUIPMENTS TO SINGLE PHOTON REGISTRATION. PART 1. FEATURES AND POSSIBILITIES OF MULTI-CHANNEL PHOTODETECTORS WITH INTRINSIC AMPLIFICATION. (REVIEW)

open access: yesПриборы и методы измерений, 2015
The main types of the modern photo detectors applied to single photon registration are analyzed. It is offered to use silicon photomultipliers for production of multi-channel optoelectronic systems with the single photon resolution.
O. V. Dvornikov   +2 more
doaj  

A Novel Electronic Interface for Micromachined Si-Based Photomultipliers

open access: yesMicromachines, 2018
In this manuscript, the authors propose a novel interface for silicon photomultipliers based on a second-generation voltage conveyor as an active element, performing as a transimpedance amplifier.
Leonardo Pantoli   +4 more
doaj   +1 more source

Co‐Firing Slow Solidification Process for Growing Indium‐Doped Cs3Cu2I5 Single Crystals With Record‐Breaking X‐Ray Detection Performance

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel brand‐new co‐firing slow solidification process has been used to prepare Cs3Cu2I5: In single crystals (SCs), which demonstrate record‐breaking X‐ray detection performance. The regular‐shaped Cs3Cu2I5: In wafer obtains a high light yield (74 368 Ph MeV−1), which is the highest related to indium‐doped Cu‐based perovskites.
Rui Liu   +6 more
wiley   +1 more source

Synthesis, Crystal Structure, and Optoelectronic Properties of [(n‐/tert‐C4H9)S(CH3)2]PbI3

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Reaction of two isomers of butyldimethylsulfonium cation with PbI2 using solid‐state and solution methods yielded the corresponding organic/inorganic hybrid compounds with high humidity tolerance and 1D crystal structures of [n‐C4H9S(CH3)2]PbI3 and [tert‐C4H9S(CH3)2]PbI3.
Ioannis Koutsoumpogeras   +4 more
wiley   +1 more source

Cell‐in‐Bead‐in‐Droplet Platform for pH‐Based Microfluidic Screening of Ureolytic Bacteria

open access: yesSmall, EarlyView.
Efficient high‐throughput microbial screening in droplet microfluidics is often challenged by chemical crosstalk between droplets. This is particularly difficult in pH‐changing biological processes, for which more effective biochemical assays are needed.
Diego Giovanoli   +8 more
wiley   +1 more source

EQUIPMENTS TO SINGLE PHOTON REGISTRATION. Part 2. SILICON PHOTOMULTIPLIER SIGNAL PRELIMINARY PROCESSING. (Review)

open access: yesПриборы и методы измерений, 2015
Bias circuits, output signals and readout electronics of silicon photomultipliers are considered. Requirements to analog IC for SiPM signal preliminary processing are formulated.
O. V. Dvornikov   +2 more
doaj  

Multichannel Photoluminescence of Graphene Quantum Dots Across Femtosecond to Cryogenic Timescales

open access: yesSmall, EarlyView.
This study reveals how graphene quantum dots emit light across all relevant timescales, from femtoseconds to cryogenic steady states. By integrating optical Kerr gating, time‐correlated single‐photon counting, and low‐temperature photoluminescence, distinct intrinsic, surface, and defect‐related emission channels are temporally and spectrally ...
Hanna Song   +8 more
wiley   +1 more source

Initial experience with a SiPM-based PET/CT scanner: influence of acquisition time on image quality

open access: yesEJNMMI Physics, 2018
Background A newly introduced PET/CT scanner (Discovery Meaningful Insights—DMI, GE Healthcare) includes the silicon photomultiplier (SiPM) with time-of-flight (TOF) technology first used in the GE SIGNA PET/MRI. In this study, we investigated the impact
Ida Sonni   +7 more
doaj   +1 more source

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