Medium-Energy Concentrator Spectrometer on board the x-ray astronomy satellite SAX: preliminary results of ground x-ray calibrations

1995 ◽  
Author(s):  
Giuliano Boella ◽  
Lucio Chiappetti ◽  
Giancarlo Conti ◽  
Silvano Molendi ◽  
Giancarlo Cusumano ◽  
...  
Keyword(s):  
Medium Energy ◽  
X Ray ◽  
Preliminary Results

scholarly journals Study of X-ray detector system characteristics on the 3B3 medium energy beamline in BSRF

2006 ◽  
Vol 55 (12) ◽  
pp. 6287
Author(s):  
Yi Rong-Qing ◽  
Yang Guo-Hong ◽  
Cui Yan-Li ◽  
Du Hua-Bing ◽  
Wei Min-Xi ◽  
...  
Keyword(s):  
Detector System ◽  
Medium Energy ◽  
X Ray ◽  
System Characteristics

scholarly journals The Soft and Medium-Energy X-Ray Variability of NGC 5548: A Reanalysis of EXOSAT Observations

1996 ◽  
Vol 465 ◽  
pp. 181 ◽  
Author(s):  
G. Tagliaferri ◽  
G. Bao ◽  
G. L. Israel ◽  
L. Stella ◽  
A. Treves
Keyword(s):  
Medium Energy ◽  
X Ray ◽  
Ngc 5548

scholarly journals Diffuse X-ray scattering by glassy crystalline cyclohexanol : preliminary results

1980 ◽  
Vol 41 (15) ◽  
pp. 365-368 ◽  
Author(s):  
D. Ceccaldi ◽  
F. Denoyer ◽  
M. Lambert ◽  
H. Szwarc
Keyword(s):  
X Ray ◽  
Preliminary Results ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals GOLD PROVENANCE AND CHARACTERIZATION USING MICRO X-RAY FLUORESCENCE (µXRF): PRELIMINARY RESULTS/ PROVENIÊNCIA E CARACTERIZAÇÃO DE OURO COM MICRO FLUORESCÊNCIA DE RAIOS X (μXRF): RESULTADOS PRELIMINARES

2018 ◽  
Vol 3 (3) ◽  
pp. 155-165
Author(s):  
William Murussi Canto ◽  
Hamilton Santos Gama Filho ◽  
Marcelino José dos Anjos ◽  
Armando Dias Tavares Jr. ◽  
Mauro César Geraldes
Keyword(s):  
Sample Preparation ◽  
Pure Gold ◽  
Noninvasive Technique ◽  
X Ray ◽  
Preliminary Results ◽  
Icp Ms ◽  
Para Determinar ◽  
Made In ◽  
Gold Digging

This work presents some preliminary results that allows to characterize gold samples using Micro X-Ray Fluorescence/µXRF. The first aim of this work is to apply a noninvasive technique, preserving the sample integrity, in order to identify the composition of gold samples and to recognize their possible geographical provenance. Samples have been obtained in geographically distinct gold-digging sites, in three Brazilian and one Colombian areas. These samples were processed only by fusion into a furnace at 1,200 ºC. The proportion of Au, Ag and Cu were measured in gold samples. The results of this work, allowed to characterize and to identify quite well the pure gold provenance, using µXRF instrumentation and related techniques. Further work is in progress to determine the behavior of mixed gold samples from different provenances. Besides that, measurements with different sample preparation will be made, in order to compare the results obtained in this work with those obtained by LA-ICP-MS techniques. ResumoEste trabalho apresenta resultados preliminares que permitem caracterizar amostras de ouro utilizando a Micro Fluorescência de Raios-X/ µXRF. O primeiro objetivo deste trabalho é aplicar uma técnica não invasiva, preservando a integridade da amostra, para identificar a composição de amostras de ouro e reconhecer a sua possível proveniência geográfica. As amostras foram obtidas em locais de exploração de ouro geograficamente distintos, em três áreas brasileiras e uma colombiana. Estas amostras foram sugeitas a fusão a 1.200 ºC, num forno. A proporção de Au, Ag e Cu foi medida em amostras de ouro. Os resultados deste trabalho permitiram caracterizar e claramente identificar a proveniência de ouro puro, utilizando resultados de µXRF. Estão em andamento outros trabalhos para determinar o comportamento da mistura de amostras de ouro de diferentes procedências. Além disso, serão efetuadas medições com diferentes preparações de amostras, a fim de comparar os resultados obtidos neste trabalho com os que estão sendo aquiridos com técnicas de LA-ICP-MS.

MERIX—Next generation medium energy resolution inelastic X-ray scattering instrument at the APS

2013 ◽  
Vol 188 ◽  
pp. 140-149 ◽  
Author(s):  
Yu.V. Shvyd’ko ◽  
J.P. Hill ◽  
C.A. Burns ◽  
D.S. Coburn ◽  
B. Brajuskovic ◽  
...  
Keyword(s):  
Energy Resolution ◽  
Next Generation ◽  
Medium Energy ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

SCANNING ION MICROBEAM ANALYSIS OF DIFFUSION IN IN-MOUTH DRUG RELEASE POLYMERS

2005 ◽  
Vol 15 (03n04) ◽  
pp. 161-167 ◽  
Author(s):  
G. MASSINGHAM ◽  
R. ARSLANOGLU ◽  
F. E. GAUNTLETT ◽  
M. S. RIHAWY ◽  
R. W. SMITH ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Nuclear Reaction ◽  
Drug Delivery Systems ◽  
Saline Solution ◽  
Pure Water ◽  
X Ray ◽  
Preliminary Results ◽  
Water Infusion ◽  
Phosphate Buffered Saline

With the aim of characterizing polymer-based drug delivery systems a combination of Scanning MeV 3 He microbeam Nuclear Reaction, Backscattering and Particle Induced X-ray Emission (PIXE) techniques has been developed. This, together with gravimetric and UV techniques has been applied to characterize both water infusion and drug effusion for three in-mouth polymer–drug systems. Preliminary results are presented from the exposure of polymers, containing drug at a level of 9% by weight of the dry polymer, to both pure water and a phosphate buffered saline solution at 37°C.

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