Search Results - "Greaves, E. D."
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1
A one-way speed of light experiment
Published in American journal of physics (01-10-2009)“…A recently proposed experiment that demonstrates the feasibility of carrying out a one-way measurement of the speed of light was performed using a time of…”
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2
Leaf secretion composition of the mangrove species Avicennia germinans (L.) in relation to salinity: a case study by using total-reflection X-ray fluorescence analysis
Published in Plant science (Limerick) (16-10-2000)“…The aim here was to use total-reflection X-ray fluorescence (TXRF) to determine the elemental composition (besides Na), and the relative contribution of each…”
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3
Radon progeny distributions inside a diffusion chamber and their contributions to track density in SSNT detectors
Published in Radiation measurements (01-11-2005)“…Diffusion of alpha emitter radon progeny inside a cylindrical diffusion chamber was simulated. In the simulation of atomic movements, we took into account the…”
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4
Radon concentrations in hot spring waters in northern Venezuela
Published in Journal of environmental radioactivity (2000)“…Concentrations of 222 Rn were determined in selected thermal water samples of the northern region of Venezuela. Concentrations in the range of 1–560 Bq/l were…”
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5
Optimizing accuracy and precision in spectral data
Published in X-ray spectrometry (01-05-2005)“…Parameters derived by computer fitting of Gaussian or Lorentzian curves to spectral data suffer from inaccuracies derived by the data gathering strategy, by…”
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6
Neutron-induced complex reaction analysis with 3D nuclear track simulation
Published in Radiation measurements (01-11-2005)“…Complex (multiple) etched tracks are analysed through digitised images and 3D simulation by a purpose-built algorithm. From a binary track image an unfolding…”
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7
Determination of Metal−Ligand Stoichiometries for Inorganic Complexes Using Total Reflection X-ray Fluorescence
Published in Inorganic chemistry (07-08-2000)“…The methods usually used to determine the ratio metal−ligand in inorganic complexes require a set of solutions with different concentrations for both the…”
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8
New procedure for intensity and detection limit determination in spectral trace analysis: application for trace mercury by TXRF
Published in X-ray spectrometry (01-07-2002)“…A new procedure for the identification and quantification of spectral signals based on the method of maximum likelihood is presented. It is particularly…”
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9
Data processing technique for mercury determination by total-reflection X-ray fluorescence, using amalgamation with gold
Published in Spectrochimica acta. Part B: Atomic spectroscopy (13-09-1999)“…We have developed a method to determine mercury concentrations using total-reflection X-ray fluorescence (TXRF) which leads to reliable results. The usual…”
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10
Determination of platinum levels in serum and urine samples from pediatric cancer patients by TXRF
Published in X-ray spectrometry (01-09-2000)“…A simple total reflection x‐ray fluorescence (TXRF) procedure was developed to monitor plasma drug levels and urine elimination in pediatric cancer patients…”
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11
A method for thickness determination of thin films of amalgamable metals by total-reflection X-ray fluorescence
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (01-08-2009)“…A method for thickness determination of thin amalgamable metallic films by total-reflection X-ray fluorescence (TXRF) is presented. The peak’s intensity in…”
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12
Direct total-reflection X-ray fluorescence trace element analysis of organic matrix materials with a semiempirical standard
Published in Spectrochimica acta. Part B : Atomic spectroscopy (01-07-1997)“…In this work we describe a method for trace element analysis in organic matrix materials using direct irradiation of the sample in a total-reflection X-ray…”
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13
Gross alpha radioactivity of drinking water in Venezuela
Published in Journal of environmental radioactivity (1997)“…Bottled mineral water is consumed by a large population in Venezuela. The alpha emitters concentration was measured in samples of bottled water and water…”
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14
( n , α ) Reaction study with LR-115 for binary glass metal boron distribution
Published in Radiation measurements (01-08-2008)“…Binary glass metal ( Fe 75 B 25 ) theories of glass formation require boron distribution knowledge; this can be achieved by thermal neutron α -radiography…”
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15
Trace element determination of mercury by total-reflection X-ray fluorescence
Published in Spectrochimica acta. Part B : Atomic spectroscopy (01-07-1997)“…A rapid and simple method is presented for the determination of trace amounts of ionic mercury in solutions by total-reflection X-ray fluorescence. The method…”
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16
SAX, software for the analysis of x-ray fluorescence spectra
Published in X-ray spectrometry (01-05-1998)“…A program for chemical analysis by energy‐dispersive x‐ray spectrometry is described. Fluorescent multiplets are fitted to a high degree of accuracy by a…”
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17
Environmental gamma and radon dosimetry in Venezuela
Published in Radiation measurements (01-06-1999)“…Environmental gamma exposure and radon concentration levels measured in Venezuelan regions are presented. A new generation image analyser was used for α…”
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18
Radon concentration measurements in Venezuelan caves using SSNTDS
Published in Radiation measurements (1997)“…The radon concentrations in some caves of the karstic zones of Venezuela have been studied (Guacharo, Alfredo Jahn, Los Laureles caves, and caves in the Valle…”
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19
Hot particle spectrum determination by track image analysis
Published in Radiation physics and chemistry (1993) (01-06-1998)Get full text
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20
Radon monitoring for health studies in the Caracas subway using SSNTDS
Published in Radiation measurements (1997)“…The additional dose due to environmental radioactivity in the underground transport system of Caracas was determined. Measurements employed the exposure of…”
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