José Paulo Santos

Santos, J. P. "HCI 2018." X-Ray Spectrometry (2020). AbstractWebsite
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Carvalho, Patr{\'ı}cia M. S., Sofia Pessanha, Jorge Machado, Ana Lu{\'ı}sa Silva, João Veloso, Diogo Casal, Diogo Pais, and José Paulo Santos. "Energy dispersive X-ray fluorescence quantitative analysis of biological samples with the external standard method." Spectrochimica Acta Part B: Atomic Spectroscopy 174 (2020): 105991. AbstractWebsite
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Santos, J. P., Chintan Shah, José Crespo R. López-Urrutia, Ming Feng Gu, Thomas Pfeifer, José Marques, Filipe Grilo, José Paulo Santos, and Pedro Amaro. "Revisiting the Fe xvii Line Emission Problem: Laboratory Measurements of the 3s–2p and 3d–2p Line-formation Channels." The Astrophysical Journal (2019). AbstractWebsite
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Ménesguen, Y., {M. C. } Lépy, Y. Ito, M. Yamashita, S. Fukushima, M. Polasik, K. Słabkowska, Syrocki, E. Wȩder, P. Indelicato, {J. P. } Marques, {J. M. } Sampaio, M. Guerra, F. Parente, and {J. P. } Santos. "Precise x-ray energies of gadolinium determined by a combined experimental and theoretical approach." Journal Of Quantitative Spectroscopy & Radiative Transfer 236 (2019). Abstract

We combined different experimental techniques with a theoretical approach to determine a consistent set of diagram lines energies and binding energies. We propose an original approach consisting in determining the mass attenuation coefficients in an energy range covering the L-, M- and N- absorption edges, including a detailed evaluation of the associated uncertainties, to derive precisely the binding energies. We investigated the Lα, Lβ and M spectra of Gd with an independantly calibrated high-resolution anti-parallel double-crystal x-ray spectrometer. All the lines were identified and found in excellent agreement with the binding energies previously derived. Morever, we identified for the first time M5−O2, M4−O2,3 and M4−N2,3 diagram lines.

Zeeshan, Faisal, Joanna Hoszowska, {Jean Claude} Dousse, Dimosthenis Sokaras, {Tsu Chien} Weng, Roberto Alonso-Mori, Matjaz Kav{\v c}i{\v c}, Mauro Guerra, {Jorge Miguel} Sampaio, Fernando Parente, Paul Indelicato, {José Pires} Marques, and {José Paulo} Santos. "Diagram, valence-to-core, and hypersatellite Kβ X-ray transitions in metallic chromium." X-Ray Spectrometry 48 (2019): 351-359. 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–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.

Física Atómica e Molecular (Atomic and Molecular Physics)

Semester: 
Spring
Offered: 
2022

Mestrado Integrado em Engenharia Física (Integrated Master in Physics Engineering)
Mestrado Integrado em Engenharia Biomédica (Integrated Master in Biomedical Engineering)

Mecânica Quântica (Quantum Mechanics)

Semester: 
Fall
Offered: 
2021

Mestrado Integrado em Engenharia Física (Integrated Master in Physics Engineering)
Mestrado Integrado em Engenharia Biomédica (Integrated Master in Biomedical Engineering)
Mestrado Integrado em Micro e Nano Engenharia (Integrated Master in Micro and Nanotechnologies)

Física Atómica (Atomic Physics)

Semester: 
Spring
Offered: 
2021

  • Mestrado Integrado em Engenharia Física (Integrated Master in Physics Engineering)

Física Atómica e Molecular (Atomic and Molecular Physics)

Semester: 
Spring
Offered: 
2021
  • Mestrado Integrado em Engenharia Biomédica (Integrated Master in Biomedical Engineering)

PrimA-LTD | Towards new primary activity standardisation methods based on low-temperature detectors - 20FUN04 (2021-2024)

Overview

Radionuclide metrology, and more specifically, activity standardisation, is based on well-established m

MiniVent - Ventilador Minimalista para os Cuidados Intensivos da COVID-19

A COVID-19 grave é frequentemente associada à insuficiência respiratória aguda hipoxémica. O número de pacientes que necessitam de ventilação mecânica invasiva superou em vários países a capacidade instalada e os fabricantes existentes têm dificuldade sem atender o aumento da procura.

MiniVent - Ventilador Minimalista para os Cuidados Intensivos da COVID-19

hipoxémica. O número de pacientes que necessitam de ventilação mecânica invasiva superou em vários países a capacidade instalada e os fabricantes existentes têm dificuldade sem atender o aumento da procura. O projeto MiniVent visa desenvolver a evolução do conceito de ventilador minimalista para ventilação mecânica intrusiva, em modo de controlo de pressão, para a terapia clínica intensiva de emergência do COVID-19 com uma arquitetura única mas com várias alternativas em termos dos componentes possíveis de usar, em função da sua disponibilidade de mercado ou capacidade local de produção.

Address: 
DF - FCT NOVA, Quinta da Torre, 2829 -516 MONTE DA CAPARICA , PORTUGAL