Results 41 to 50 of about 120,161 (290)
Radon emanation rate measurements using liquid scintillation counting [PDF]
This article describes a radon emanation measurement technique using liquid scintillator counting. A model for radon loading and transport is described, along with its calibration. Detector background and blank have been studied and quantified. The Minimal detectable activity has been determined for the counting setup using a toy Monte Carlo simulation.
arxiv +1 more source
PETALO (Positron Emission TOF Apparatus with Liquid xenOn) is a project that uses liquid xenon as a scintillation medium, silicon photomultipliers as a readout and fast electronics to provide a significant improvement in PET-TOF technology. Liquid xenon allows one to build a continuous detector with a high stopping power for 511 keV gammas. In addition,
arxiv
Light propagation and fluorescence quantum yields in liquid scintillators [PDF]
For the simulation of the scintillation and Cherenkov light propagation in large liquid scintillator detectors a detailed knowledge about the absorption and emission spectra of the scintillator molecules is mandatory. Furthermore reemission probabilities and quantum yields of the scintillator components influence the light propagation inside the liquid.
arxiv +1 more source
A scintillating polymeric composites loaded with hafnia nanoparticles is engineered to obtain a highly luminous material, thus achieving a 400% improvement of the scintillation yield under soft X‐rays. The nanocomposite is employed to realize a multilayer heterostructured prototype scintillator than enable for ultrafast time coincidence resolution in ...
Matteo Sala+12 more
wiley +1 more source
Abstract Drawing on 17 months of ethnographic fieldwork in the Netherlands and Ghana, this paper combines ‘return’ mobilities literature and youth studies to analyse the role of leisure practices during ‘homeland’ visits in transnational youth's way of relating to Ghana when they are entering into adulthood.
Gladys Akom Ankobrey
wiley +1 more source
The determination of radium isotopes in drinking water by liquid scintillation technique requires some reagents that are used for separating radium from water samples. One of the main reagents is BaCl2·H2O.
Nguyen Chau+3 more
doaj +1 more source
REALISATION OF RADIONUCLIDES ACTIVITY UNIT USING THE LIQUID SCINTILLATION COUNTING (LSC)
Registration of the effects of interaction of the radiation emitted after radioactive decay enables determination of activity of a given material expressed in becquerels (Bq). Measurements in a frame of international comparisons of 14C activity using the
Ryszard Broda+3 more
doaj +1 more source
Nanocrystalline thin‐films of lanthanum chromite exhibit extraordinary properties of fast oxygen kinetics. These properties are due to the peculiar chemistry of grain boundaries and can be harnessed for fabricating symmetric electrochemical devices with self‐healing properties. Abstract While grain boundary engineering is attracting great interest as a
Federico Baiutti+16 more
wiley +1 more source
Relative dentin and enamel abrasivity of charcoal toothpastes
Abstract Objectives Very little data are known about charcoal toothpastes. The aim of this study was to counteract the missing data by determining the relative dentin abrasivity (RDA) and relative enamel abrasivity (REA) values of charcoal toothpastes.
Manuel J. Zoller+5 more
wiley +1 more source
Detection of micropollutants such as steroid hormones occurring in the aquatic environment at concentrations between ng/L and µg/L remains a major challenge, in particular when treatment efficiency is to be evaluated.
Roman Lyubimenko+3 more
doaj +1 more source