@article {947bad94b0034a06b7c096fdb9409757, title = {Diagram, valence-to-core, and hypersatellite Kβ X-ray transitions in metallic chromium}, journal = {X-Ray Spectrometry}, volume = {48}, number = {5}, year = {2019}, note = {

info:eu-repo/grantAgreement/FCT/SFRH/SFRH\%2FBPD\%2F92455\%2F2013/PT$\#$ info:eu-repo/grantAgreement/FCT/5876/147413/PT$\#$ info:eu-repo/grantAgreement/FCT/5876/147256/PT$\#$ The financial support of the Swiss National Science Foundation (Grant No. 200020-146739) is acknowledged by F.?Z., J.?H., and J.-Cl.?D. M.?G. acknowledges the support of the FCT, under the Contract No. SFRH/BPD/92455/2013 and the project PTDC/FIS-AQM/31969/2017, ?Ultra-high-accuracy X-ray spectroscopy of transition metal oxides and rare earths.? This work was also partly supported by the research center grants nos. UID/FIS/04559/2013 to LIBPhys-UNL, and UID/MULTI/04046/2013 to BioISI, from the FCT/MCTES/PIDDAC.

}, pages = {351{\textendash}359}, publisher = {John Wiley \& Sons, Ltd.}, abstract = {

We report on measurements of the Kβ diagram, valence-to-core (VtC), and hypersatellite X-ray spectra induced in metallic Cr by photon single and double K-shell ionization. The experiment was carried out at the Stanford Synchrotron Radiation Lightsource using the seven-crystal Johann-type hard X-ray spectrometer of the beamline 6-2. For the Kβ diagram and VtC transitions, the present study confirms the line shape features observed in previous works, whereas the K h β hypersatellite transition was found to exhibit a complex spectral line shape and a characteristic low-energy shoulder. The energy shift of the hypersatellite relative to the parent diagram line was deduced from the measurements and compared with the result of extensive multiconfiguration Dirac{\textendash}Fock (MCDF) calculations. A very good agreement between experiment and theory was found. The MCDF calculations were also used to compute the theoretical line shape of the hypersatellite. A satisfactory agreement was obtained between the overall shapes of the experimental and theoretical spectra, but deviations were observed on the low- and high-energy flanks of the hypersatellite line. The discrepancies were explained by chemical effects, which were not considered in the MCDF calculations performed for isolated atoms.

}, issn = {0049-8246}, doi = {10.1002/xrs.3019}, author = {Faisal Zeeshan and Joanna Hoszowska and Dousse, {Jean Claude} and Dimosthenis Sokaras and Weng, {Tsu Chien} and Roberto Alonso-Mori and Matjaz Kav{\v c}i{\v c} and Guerra, Mauro and Sampaio, {Jorge Miguel} and Parente, Fernando and Indelicato, Paul and Marques, {Jos{\'e} Pires} and Santos, {Jos{\'e} Paulo}} } @article {12495, title = {Determination of Nickel and Manganese Contaminants in Pharmaceutical Iron Supplements Using Energy Dispersive X-ray Fluorescence}, journal = {Applied Spectroscopy}, volume = {71}, number = {3}, year = {2017}, note = {n/a}, month = {Mar 13}, pages = {432-437}, abstract = {n/a}, url = {http://journals.sagepub.com/doi/10.1177/0003702816670912}, author = {Cardoso, Pedro and Amaro, Pedro and Santos, Jose Paulo and de Assis, Joaquim T and Carvalho, Maria Luisa} } @article {12497, title = {Detection limits evaluation of a portable energy dispersive X-ray fluorescence setup using different filter combinations}, journal = {X-Ray Spectrometry}, volume = {46}, number = {2}, year = {2017}, note = {n/a}, month = {Jan 03}, pages = {102-106}, abstract = {

In this paper, we study the performance of a portable energy dispersive X-ray fluorescence spectrometer by making use of different filter configurations at the X-ray tube output. To fulfill this purpose,...

}, url = {http://doi.wiley.com/10.1002/xrs.2737}, author = {Pessanha, Sofia and Samouco, Ana and Ad{\~a}o, Ricardo and Carvalho, Maria Luisa and Santos, Jose Paulo and Amaro, Pedro}, editor = {Boman, Johan} } @article {10145, title = {Determination of Nickel and Manganese Contaminants in Pharmaceutical Iron Supplements using Energy Dispersive X-ray Fluorescence.}, journal = {Applied Spectroscopy}, year = {2016}, note = {n/a}, month = {Sep 30}, abstract = {

In this study, we investigate the capability of energy dispersive X-ray fluorescence (EDXF) spectrometry in a triaxial geometry apparatus as a fast and nondestructive determination method of both dominant and contaminant elements in pharmaceutical iron supplements. The following iron supplements brands with their respective active ingredients were analyzed: Neutrofer f{\'o}lico (iron gylcinate), Anemifer (iron(II) sulfate monohydrate), Noripurum (iron(III)-hydroxide polymaltose complex), Sulferbel (iron(II) sulfate monohydrate), and Combiron F{\'o}lico (carbonyl iron). Although we observe a good agreement between the iron content obtained by the present method and that indicated in the supplement\'s prescribed dose, we observe contamination by manganese and nickel of up to 180 μg and 36 μg, respectively. These contents correspond to 7.2\% and 14.4\% of the permitted daily exposure of manganese and nickel, respectively, for an average adult individual as determined by the European Medicine Agency (EMEA). The method was successfully validated against the concentrations of several certified reference materials of biological light matrices with similar concentrations of contaminants. Moreover, we also validated our method by comparing the concentrations with those obtained with the inductively coupled plasma-atomic emission technique.

}, url = {http://asp.sagepub.com/content/early/2016/09/30/0003702816670912.abstract}, author = {Cardoso, Pedro and Amaro, Pedro and Santos, Jose Paulo and de Assis, Joaquim T and Carvalho, Maria Luisa} } @article {10146, title = {Distribution of toxic elements in teeth treated with amalgam using μ-energy dispersive X-ray fluorescence}, journal = {Spectrochimica Acta Part B: Atomic Spectroscopy}, volume = {122}, year = {2016}, note = {n/a}, month = {Aug 01}, pages = {114-117}, publisher = {Elsevier B.V.}, abstract = {

Spectrochimica Acta Part B: Atomic Spectroscopy, 122 (2016) 114-117. doi:10.1016/j.sab.2016.06.006

}, url = {http://dx.doi.org/10.1016/j.sab.2016.06.006}, author = {M Guerra and Ferreira, C. and M. L. Carvalho and J P Santos and Pessanha, S.} } @article {8060, title = {Dirac-Fock calculations of K-, L-, and M-shell fluorescence and Coster-Kronig yields for Ne, Ar, Kr, Xe, Rn, and Uuo}, journal = {Physical Review A}, volume = {91}, number = {5}, year = {2015}, note = {n/a}, month = {May 28}, pages = {052507-7}, abstract = {n/a}, url = {http://link.aps.org/doi/10.1103/PhysRevA.91.052507}, author = {Sampaio, J M and Madeira, T I and M Guerra and F. Parente and J P Santos and P. Indelicato and J. P. Marques} } @article {8090, title = {Double KK excited states in highly charged sulphur}, journal = {Journal of Physics: Conference Series}, volume = {635}, year = {2015}, note = {

n/a

}, month = {Jun}, pages = {022071}, abstract = {

n/a

}, author = {P Amaro and J. P. Marques and P. Indelicato and Mukherjee, T K and Saha, J. K. and Tribedi, L C and J P Santos} } @article {8109, title = {Determination of subshell-resolved \<span class=\"aps-inline-formula\"\>\<math\>\<mi\>L\</mi\>\</math\>\</span\>-shell-ionization cross sections of gold induced by 15{\textendash}40-keV electrons}, journal = {Physical Review A}, volume = {89}, number = {5}, year = {2014}, note = {n/a}, month = {May 14}, pages = {052708}, abstract = {n/a}, url = {http://link.aps.org/doi/10.1103/PhysRevA.89.052708}, author = {Rahangdale, H V and M Guerra and Das, P K and De, S. and J P Santos and Mitra, D and Saha, S} } @article {6851, title = {Determination of subshell-resolved \<span class=\"aps-inline-formula\"\>\<math\>\<mi\>L\</mi\>\</math\>\</span\>-shell-ionization cross sections of gold induced by 15{\textendash}40-keV electrons}, journal = {Physical Review A}, volume = {89}, number = {5}, year = {2014}, note = {n/a}, month = {Jun 14}, pages = {052708}, abstract = {n/a}, url = {http://link.aps.org/doi/10.1103/PhysRevA.89.052708}, author = {Rahangdale, H V and M Guerra and Das, P K and De, S. and J P Santos and Mitra, D and Saha, S} } @article {3079, title = {Decay of the 1s^{2}2s3p ^{3}P_{0} level in Be-like ions}, journal = {Phys. Rev. A}, volume = {86}, year = {2012}, note = {

n/a

}, month = {Nov}, pages = {052521}, abstract = {

n/a

}, url = {http://link.aps.org/doi/10.1103/PhysRevA.86.052521}, author = {Marques, J. and F. Parente and Costa, A. and Martins, M and P. Indelicato and J P Santos} } @article {8130, title = {Dirac-Fock Transition Energies and Radiative and Radiationless Transition Probabilities for Ar8+ to Ar16+ Ion Levels with K-Shell Hole}, journal = {Atomic Data and Nuclear Data Tables}, volume = {79}, number = {2}, year = {2001}, note = {

JPS-Ref11

}, pages = {223-239}, abstract = {n/a}, author = {A. M. Costa and M. C. Martins and J P Santos and P. Indelicato and F. Parente} }