@article {Krauth_2021, title = {Measuring the $\upalpha$-particle charge radius with muonic helium-4 ions}, journal = {Nature}, volume = {589}, number = {7843}, year = {2021}, note = {n/a}, month = {jan}, pages = {527{\textendash}531}, publisher = {Springer Science and Business Media {LLC}}, abstract = {n/a}, doi = {10.1038/s41586-021-03183-1}, url = {https://doi.org/10.1038\%2Fs41586-021-03183-1}, author = {Krauth, Julian J and Schuhmann, Karsten and Ahmed, Marwan Abdou and Amaro, Fernando D. and Amaro, Pedro and Biraben, Fran{\c c}ois and Chen, Tzu-Ling and Covita, Daniel S. and Dax, Andreas J and Diepold, Marc and Fernandes, Luis M. P. and Franke, Beatrice and Galtier, Sandrine and Gouvea, Andrea L and Johannes G{\~A}{\textparagraph}tzfried and Graf, Thomas and Theodor W. H{\~A}¤nsch and Jens Hartmann and Hildebrandt, Malte and Indelicato, Paul and Julien, Lucile and Kirch, Klaus and Knecht, Andreas and Liu, Yi-Wei and Machado, Jorge and Monteiro, Cristina M. B. and Mulhauser, Fran{\c c}oise and Naar, Boris and Nebel, Tobias and Nez, Fran{\c c}ois and dos Santos, Joaquim M. F. and Jos{\'e} Paulo Santos and Szabo, Csilla I and Taqqu, David and Veloso, Jo{\~a}o F. C. A. and Jan Vogelsang and Voss, Andreas and Weichelt, Birgit and Pohl, Randolf and Antognini, Aldo and Kottmann, Franz} } @article {J._P._Santos_105402591, title = {Application of Unsupervised Multivariate Analysis Methods to Raman Spectroscopic Assessment of Human Dental Enamel}, journal = {Computers}, year = {2021}, note = {n/a}, abstract = {n/a}, doi = {10.3390/computers11010005}, url = {http://doi.org/10.3390/computers11010005}, author = {J P Santos and Iulian Otel and Joao Silveira and Vassilenko, Valentina and Ant{\'o}nio Mata and Maria Lu{\'\i}sa Carvalho and Jos{\'e} Paulo Santos and Pessanha, Sofia} } @article {a16d03ef21ef44ff8999f7aedaeec888, title = {Elemental mapping of Portuguese ceramic pieces with a full-field XRF scanner based on a 2D-THCOBRA detector}, journal = {European Physical Journal Plus}, volume = {136}, number = {4}, year = {2021}, note = {

info:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC\%2FFIS-AQM\%2F32536\%2F2017/PT$\#$ info:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC\%2FFIS-AQM\%2F32536\%2F2017/PT$\#$ info:eu-repo/grantAgreement/FCT/FARH/PD\%2FBD\%2F128324\%2F2017/PT$\#$ UID/FIS/04559/2020

}, publisher = {Springer Science + Business Media}, abstract = {

In this work, we present a novel application of the full-field energy-dispersive X-ray fluorescence (EDXRF) imaging system based on a MicroPattern Gaseous Detector (2D-THCOBRA) in the cultural heritage field. The detector has an intrinsic imaging capability with spatial resolution of 400μmFWHM, and is energy sensitive, presenting an energy resolution of approximately 1keVFWHM at 5.9keV. The full-field XRF scanner based on the 2D-THCOBRA detector allows mapping the distribution of elements in large area samples with high detection efficiency (75 \% at 5.9keV), being a very promising choice for elemental mapping analysis of large area cultural heritage samples. In this work, we have demonstrated the imaging capabilities of the full-field XRF scanner and used it to assess the restoration of a Portuguese faience piece.

}, issn = {2190-5444}, doi = {10.1140/epjp/s13360-021-01422-y}, author = {Carvalho, {Patr{\'\i}cia Miguel da Silva} and F{\'a}bio Leite and Silva, {A. L. M.} and Pessanha, Sofia and Carvalho, {Maria Lu{\'\i}sa} and Veloso, {Jo{\~a}o F. C. A.} and Santos, {Jos{\'e} Paulo}} } @article {J._P._Santos_87568685, title = {Fundamental Parameters Related to Selenium K\alpha and K\beta Emission X-ray Spectra}, journal = {Atoms}, year = {2021}, note = {n/a}, abstract = {n/a}, doi = {10.3390/atoms9010008}, url = {http://doi.org/10.3390/atoms9010008}, author = {J P Santos and Guerra, Mauro and Jorge M. Sampaio and Gon{\c c}alo R. V{\'\i}lia and C{\'e}sar A. Godinho and Daniel Pinheiro and Amaro, Pedro and Jos{\'e} P. Marques and Machado, Jorge and Indelicato, Paul and Parente, Fernando and Jos{\'e} Paulo Santos} } @article {Ito_2020, title = {Structure of K$\upalpha$1,2- and K$\upbeta$1,3-emission x-ray spectra for Se, Y, and Zr}, journal = {Physical Review A}, volume = {102}, number = {5}, year = {2020}, note = {n/a}, month = {nov}, publisher = {American Physical Society ({APS})}, abstract = {n/a}, doi = {10.1103/physreva.102.052820}, url = {https://doi.org/10.1103\%2Fphysreva.102.052820}, author = {Ito, Y and Tochio, T and Yamashita, M and Fukushima, S and Vlaicu, A M and J. P. Marques and Sampaio, J M and M Guerra and J P Santos and Syrocki, {\L} and S{\l}abkowska, K and E. W{\`E}{\textcopyright}der and Polasik, M. and Rzadkiewicz, J. and P. Indelicato and M{\'e}nesguen, Y and M.-Ch. L{\'e}py and F. Parente} } @article {Carvalho_2020, title = {Energy dispersive X-ray fluorescence quantitative analysis of biological samples with the external standard method}, journal = {Spectrochimica Acta Part B: Atomic Spectroscopy}, volume = {174}, year = {2020}, note = {n/a}, month = {dec}, pages = {105991}, publisher = {Elsevier {BV}}, abstract = {n/a}, doi = {10.1016/j.sab.2020.105991}, url = {https://doi.org/10.1016\%2Fj.sab.2020.105991}, author = {Patr{\'{\i}}cia M.S. Carvalho and Pessanha, Sofia and Machado, Jorge and Ana Lu{\'{\i}}sa Silva and Jo{\~a}o Veloso and Diogo Casal and Diogo Pais and Jos{\'e} Paulo Santos} } @article {Ito:2018ev, title = {Structure of high-resolution K$\beta$1,3 x-ray emission spectra for the elements from Ca to Ge}, journal = {Phys. Rev. A}, volume = {97}, number = {5}, year = {2018}, note = {

n/a

}, month = {may}, pages = {052505}, abstract = {

n/a

}, author = {Ito, Y and Tochio, T and Yamashita, M and Fukushima, S and Vlaicu, A M and Syrocki, {\L} and S{\l}abkowska, K and Weder, E and Polasik, M. and Sawicka, K and P. Indelicato and J. P. Marques and Sampaio, J M and M Guerra and J P Santos and F. Parente} } @article {Cardoso:2018cea, title = {Localization and distribution of Zn and Fe in grains of biofortified bread wheat lines through micro- and triaxial-X-ray fluorescence spectrometry}, journal = {Spectrochim. Acta Part B}, volume = {141}, number = {C}, year = {2018}, note = {

n/a

}, month = {mar}, pages = {70{\textendash}79}, abstract = {

n/a

}, author = {Cardoso, P and Mateus, T C and Velu, G and R. P. Singh and J P Santos and M. L. Carvalho and Louren{\c c}o, V M and Lidon, F and Reboredo, F and M Guerra} } @article {Monteiro:2018hba, title = {{On the double peak structure of avalanche photodiode response to monoenergetic x-rays at various temperatures and bias voltages}}, journal = {J. Inst.}, volume = {13}, number = {01}, year = {2018}, note = {n/a}, pages = {C01033{\textendash}C01033}, abstract = {n/a}, author = {Monteiro, C M B and Amaro, F D and Sousa, M S and Abdou-Ahmed, M and P Amaro and Biraben, F. and Chen, T. and Covita, D S and Dax, A J and Diepold, M and Fernandes, L M P and Franke, B and Galtier, S and Gouv{\^e}a, A L and G{\"o}tzfried, J and Graf, T and Hansch, T W and Hildebrandt, M and P. Indelicato and Julien, L. and Kirch, K and Knecht, A and Kottmann, F and Krauth, J J and Liu, Y. and Machado, J and Mulhauser, F and Naar, B and Nebel, T and Nez, F. and Pohl, R and J P Santos and Santos, J M F dos and Schuhmann, K and Szabo, C. I. and Taqqu, D and Veloso, J F C A and Antognini, A} } @conference {12488, title = {Laser Spectroscopy of Muonic Atoms and Ions}, booktitle = {Proceedings of the 12th International Conference on Low Energy Antiproton Physics (LEAP2016)}, year = {2017}, note = {n/a}, month = {Nov 24}, pages = {1-12}, publisher = {Journal of the Physical Society of Japan}, organization = {Journal of the Physical Society of Japan}, abstract = {n/a}, isbn = {4-89027-125-2}, url = {http://journals.jps.jp/doi/10.7566/JPSCP.18.011021}, author = {Pohl, Randolf and Nez, Fran{\c c}ois and Fernandes, Luis M. P. and Ahmed, Marwan Abdou and Amaro, Fernando D. and Amaro, Pedro and Biraben, Fran{\c c}ois and Cardoso, Jo{\~a}o M. R. and Covita, Daniel S. and Dax, Andreas and Dhawan, Satish and Diepold, Marc and Franke, Beatrice and Galtier, Sandrine and Giesen, Adolf and Gouvea, Andrea L and G{\"o}tzfried, Johannes and Graf, Thomas and H{\"a}nsch, Theodor W. and Hildebrandt, Malte and Indelicato, Paul and Julien, Lucile and Kirch, Klaus and Knecht, Andreas and Knowles, Paul and Kottmann, Franz and Krauth, Julian J and Le Bigot, Eric-Olivier and Liu, Yi-Wei and Lopes, Jos{\'e} A. M. and Ludhova, Livia and Machado, Jorge and Monteiro, Cristina M. B. and Mulhauser, Fran{\c c}oise and Nebel, Tobias and Rabinowitz, Paul and dos Santos, Joaquim M. F. and Santos, Jose Paulo and Schaller, Lukas A. and Schuhmann, Karsten and Schwob, Catherine and Szabo, Csilla I and Taqqu, David and Veloso, Jo{\~a}o F. C. A. and Voss, Andreas and Weichelt, Birgit and Antognini, Aldo} } @article {12496, title = {Elemental mapping in a contemporary miniature by full-field X-ray fluorescence imaging with gaseous detector vs. scanning X-ray fluorescence imaging with polycapillary optics}, year = {2017}, note = {n/a}, month = {Feb 03}, pages = {1-7}, publisher = {Elsevier B.V.}, abstract = {

Spectrochimica Acta Part B: Atomic Spectroscopy, 129 (2016) 1-7. doi:10.1016/j.sab.2016.12.006

}, author = {Silva, A L M and Cirino, S and M. L. Carvalho and Manso, M. and Pessanha, S. and Azevedo, C D R and Carramate, L F N D and J P Santos and M Guerra and Veloso, J F C A} } @conference {12509, title = {Multiple Source Phototherapy in Breast Cancer: A Viability Study}, booktitle = {9th International Conference on Biomedical Electronics and Devices}, year = {2016}, note = {n/a}, month = {Apr 27}, pages = {247-250}, publisher = {SCITEPRESS - Science and and Technology Publications}, organization = {SCITEPRESS - Science and and Technology Publications}, abstract = {n/a}, isbn = {978-989-758-170-0}, url = {http://www.scitepress.org/DigitalLibrary/Link.aspx?doi=10.5220/0005794902470250}, author = {Lopes, A. and Gabriel, A and Machado, J and Ribeiro, P and Gomes, R and Coelho, Jo o M P and Silva, C O and Reis, C P and J P Santos and Vieira, P.} } @article {8061, title = {Improved x-ray detection and particle identification with avalanche photodiodes}, journal = {Review of Scientific Instruments}, volume = {86}, number = {5}, year = {2015}, note = {n/a}, month = {May}, pages = {053102-7}, abstract = {n/a}, url = {http://scitation.aip.org/content/aip/journal/rsi/86/5/10.1063/1.4921195}, author = {Diepold, Marc and Fernandes, Luis M. P. and Machado, Jorge and Amaro, Pedro and Abdou-Ahmed, Marwan and Amaro, Fernando D. and Antognini, Aldo and Biraben, Fran{\c c}ois and Chen, Tzu-Ling and Covita, Daniel S. and Dax, Andreas J and Franke, Beatrice and Galtier, Sandrine and Gouvea, Andrea L and G{\"o}tzfried, Johannes and Graf, Thomas and H{\"a}nsch, Theodor W. and Hildebrandt, Malte and Indelicato, Paul and Julien, Lucile and Kirch, Klaus and Knecht, Andreas and Kottmann, Franz and Krauth, Julian J and Liu, Yi-Wei and Monteiro, Cristina M. B. and Mulhauser, Fran{\c c}oise and Naar, Boris and Nebel, Tobias and Nez, Fran{\c c}ois and Santos, Jose Paulo and dos Santos, Joaquim M. F. and Schuhmann, Karsten and Szabo, Csilla I and Taqqu, David and Veloso, Jo{\~a}o F. C. A. and Voss, Andreas and Weichelt, Birgit and Pohl, Randolf} } @article {6858, title = {Monte Carlo simulation of laser beams interaction with the human eye using Geant4}, journal = {BioMedical Engineering OnLine}, volume = {13}, number = {1}, year = {2014}, note = {n/a}, pages = {58}, abstract = {n/a}, url = {http://www.biomedical-engineering-online.com/content/13/1/58}, author = {Tendeiro, Diogo and Lopes, Gon{\c c}alo and Vieira, Pedro and Santos, Jose Paulo} } @article {8128, title = {Monte Carlo simulation of laser beams interaction with the human eye using Geant4}, journal = {BioMedical Engineering OnLine}, volume = {13}, number = {1}, year = {2014}, note = {n/a}, pages = {58}, abstract = {n/a}, url = {http://www.biomedical-engineering-online.com/content/13/1/58}, author = {Tendeiro, Diogo and Lopes, Gon{\c c}alo and Vieira, Pedro and Santos, Jose Paulo} } @conference {6857, title = {Monte Carlo Simulation of Radiation through the Human Retina Using Geant4}, volume = {41}, number = {Chapter 107}, year = {2014}, note = {n/a}, pages = {431-434}, publisher = {Springer International Publishing}, organization = {Springer International Publishing}, address = {Cham}, abstract = {n/a}, isbn = {978-3-319-00846-2}, url = {http://link.springer.com/10.1007/978-3-319-00846-2_107}, author = {Lopes, G and Tendeiro, D and J P Santos and Vieira, P.} } @conference {8105, title = {Monte Carlo Simulation of Radiation through the Human Retina Using Geant4}, volume = {41}, number = {Chapter 107}, year = {2014}, note = {n/a}, pages = {431-434}, publisher = {Springer International Publishing}, organization = {Springer International Publishing}, address = {Cham}, abstract = {n/a}, isbn = {978-3-319-00846-2}, url = {http://link.springer.com/10.1007/978-3-319-00846-2_107}, author = {Lopes, G and Tendeiro, D and J P Santos and Vieira, P.} } @article {704, title = {Ultrasonic energy as a tool to overcome some drawbacks in the determination of lead in brain tissue and urine of rats}, journal = {Talanta}, volume = {86}, year = {2011}, note = {

Webpage CFA-FCTUNL

}, pages = {442-446 }, abstract = {

An ultrasonic assisted solid{\quotesinglbase}{\"A}{\`\i}liquid extraction method was developed to determine the level of lead in the brain and urine of rats. Lead was determined by electrothermal atomic absorption spectrometry with longitudinal-Zeeman background correction. Several analytical drawbacks were addressed and overcome, namely small brain sample mass and the formation of precipitate in the urine samples. Utrasonication provided by an ultrasonic probe succeeded in extracting lead from brain samples. Furthermore, it was demonstrated that the formation of a precipitate lowered the lead content in the liquid phase of the urine. Lead was back extracted from the precipitate to the liquid phase with the aid of ultrasonic energy and acidifying the urine with 10\% v/v nitric acid. A microwave-assisted acid digestion protocol was used to check the completeness of the lead extraction. The within bath and between bath precision was 5\% (n\&$\#$xa0;=\&$\#$xa0;9) and 7\% (n\&$\#$xa0;=\&$\#$xa0;3) respectively. The limit of quantification was 1.05\&$\#$xa0;{\OE}{\textordmasculine}g\&$\#$xa0;g{\quotesinglbase}{\`a}{\'\i}1 for brain samples and 2.1\&$\#$xa0;{\OE}{\textordmasculine}g\&$\#$xa0;L{\quotesinglbase}{\`a}{\'\i}1 for urine samples. A total of 6 samples of urine and 12 samples of brain from control rats and another 6 samples of urine and 12 samples of brain from rats fed with tap water rich in lead acetate were used in this research. Lead levels in brain and urine from exposed rats ranged from1.9\&$\#$xa0;{\textlnot}{\textpm}\&$\#$xa0;0.2\&$\#$xa0;{\OE}{\textordmasculine}g\&$\#$xa0;g{\quotesinglbase}{\`a}{\'\i}1 to 3.5\&$\#$xa0;{\textlnot}{\textpm}\&$\#$xa0;0.2\&$\#$xa0;{\OE}{\textordmasculine}g\&$\#$xa0;g{\quotesinglbase}{\`a}{\'\i}1 and from 752\&$\#$xa0;{\textlnot}{\textpm}\&$\#$xa0;56\&$\#$xa0;{\OE}{\textordmasculine}g\&$\#$xa0;L{\quotesinglbase}{\`a}{\'\i}1 to 60.9\&$\#$xa0;{\textlnot}{\textpm}\&$\#$xa0;1.2\&$\#$xa0;mg\&$\#$xa0;L{\quotesinglbase}{\`a}{\'\i}1 respectively. Statistically significant differences of levels of lead in brain and urine were found between exposed and non exposed rats.

}, keywords = {Brain, Electrothermal atomization, Lead, Pb, Rats, Ultrasonic, Urine}, isbn = {0039-9140}, url = {http://www.sciencedirect.com/science/article/pii/S0039914011007855}, author = {D. Guimar{\~a}es and J P Santos and M. L. Carvalho and Vale, G. and Santos, H. M. and V. Geraldes and I. Rocha and Capelo, J. L.} } @article {8100, title = {Ultrasonic energy as a tool to overcome some drawbacks in the determination of lead in brain tissue and urine of rats}, journal = {Talanta}, volume = {86}, year = {2011}, note = {

Webpage CFA-FCTUNLJPS-Ref45

}, pages = {442-446}, abstract = {

An ultrasonic assisted solid{\quotesinglbase}{\"A}{\`\i}liquid extraction method was developed to determine the level of lead in the brain and urine of rats. Lead was determined by electrothermal atomic absorption spectrometry with longitudinal-Zeeman background correction. Several analytical drawbacks were addressed and overcome, namely small brain sample mass and the formation of precipitate in the urine samples. Utrasonication provided by an ultrasonic probe succeeded in extracting lead from brain samples. Furthermore, it was demonstrated that the formation of a precipitate lowered the lead content in the liquid phase of the urine. Lead was back extracted from the precipitate to the liquid phase with the aid of ultrasonic energy and acidifying the urine with 10\% v/v nitric acid. A microwave-assisted acid digestion protocol was used to check the completeness of the lead extraction. The within bath and between bath precision was 5\% (n\&$\#$xa0;=\&$\#$xa0;9) and 7\% (n\&$\#$xa0;=\&$\#$xa0;3) respectively. The limit of quantification was 1.05\&$\#$xa0;{\OE}{\textordmasculine}g\&$\#$xa0;g{\quotesinglbase}{\`a}{\'\i}1 for brain samples and 2.1\&$\#$xa0;{\OE}{\textordmasculine}g\&$\#$xa0;L{\quotesinglbase}{\`a}{\'\i}1 for urine samples. A total of 6 samples of urine and 12 samples of brain from control rats and another 6 samples of urine and 12 samples of brain from rats fed with tap water rich in lead acetate were used in this research. Lead levels in brain and urine from exposed rats ranged from1.9\&$\#$xa0;{\textlnot}{\textpm}\&$\#$xa0;0.2\&$\#$xa0;{\OE}{\textordmasculine}g\&$\#$xa0;g{\quotesinglbase}{\`a}{\'\i}1 to 3.5\&$\#$xa0;{\textlnot}{\textpm}\&$\#$xa0;0.2\&$\#$xa0;{\OE}{\textordmasculine}g\&$\#$xa0;g{\quotesinglbase}{\`a}{\'\i}1 and from 752\&$\#$xa0;{\textlnot}{\textpm}\&$\#$xa0;56\&$\#$xa0;{\OE}{\textordmasculine}g\&$\#$xa0;L{\quotesinglbase}{\`a}{\'\i}1 to 60.9\&$\#$xa0;{\textlnot}{\textpm}\&$\#$xa0;1.2\&$\#$xa0;mg\&$\#$xa0;L{\quotesinglbase}{\`a}{\'\i}1 respectively. Statistically significant differences of levels of lead in brain and urine were found between exposed and non exposed rats.

}, url = {http://www.sciencedirect.com/science/article/pii/S0039914011007855}, author = {D. Guimar{\~a}es and J P Santos and M. L. Carvalho and Vale, G. and Santos, H. M. and V. Geraldes and I. Rocha and Capelo, J. L.} } @article {198, title = {Angular correlations in the two-photon decay of heliumlike heavy ions}, journal = {Physical Review A}, volume = {81}, number = {4}, year = {2010}, note = {Copyright (C) 2010 The American Physical Society Please report any problems to prola@aps.org PRA}, pages = {042510}, abstract = {The two-photon decay of heavy, helium-like ions is investigated based on second-order perturbation theory and Dirac{\textquoteright}s relativistic equation. Special attention has been paid to the angular emission of the two photons (i.e., how the angular correlation function depends on the shell structure of the ions in their initial and final states). Moreover, the effects from the (electric and magnetic) nondipole terms in the expansion of the electron-photon interaction are discussed. Detailed calculations have been carried out for the two-photon decay of the 1s2s1S0, 1s2s3S1, and 1s2p3P0 states of helium-like Xe52+, Au77+, and U90+ ions.}, keywords = {31.30.jc, 32.80.Wr, PACS: 31.10.+z}, doi = {DOI: 10.1103/PhysRevA.81.042510}, url = {http://link.aps.org/doi/10.1103/PhysRevA.81.042510}, author = {A. Surzhykov and A. Volotka and F. Fratini and J P Santos and P. Indelicato and G. Plunien and Th St{\"o}hlker and S. Fritzsche} } @article {8070, title = {Angular correlations in the two-photon decay of heliumlike heavy ions}, journal = {Physical Review A}, volume = {81}, number = {4}, year = {2010}, note = {

Copyright (C) 2010 The American Physical SocietyPlease report any problems to prola@aps.orgPRAWebpage CFA-FCTUNLJPS-Ref44

}, pages = {042510}, publisher = {American Physical Society}, abstract = {

The two-photon decay of heavy, helium-like ions is investigated based on second-order perturbation theory and Dirac{\textquoteright}s relativistic equation. Special attention has been paid to the angular emission of the two photons (i.e., how the angular correlation function depends on the shell structure of the ions in their initial and final states). Moreover, the effects from the (electric and magnetic) nondipole terms in the expansion of the electron-photon interaction are discussed. Detailed calculations have been carried out for the two-photon decay of the 1s2s1S0, 1s2s3S1, and 1s2p3P0 states of helium-like Xe52+, Au77+, and U90+ ions.

}, url = {http://link.aps.org/doi/10.1103/PhysRevA.81.042510}, author = {A. Surzhykov and A. Volotka and F. Fratini and J P Santos and P. Indelicato and G. Plunien and Th St{\"o}hlker and S. Fritzsche} }