☆ 4.3 Article

SUNBIM: a package for X-ray imaging of nano- and biomaterials using SAXS, WAXS, GISAXS and GIWAXS techniques

JOURNAL OF APPLIED CRYSTALLOGRAPHY (2016)

Journal

JOURNAL OF APPLIED CRYSTALLOGRAPHY

Volume 49, Issue -, Pages 1107-1114

Publisher

INT UNION CRYSTALLOGRAPHY

DOI: 10.1107/S1600576716006932

Keywords

small- and wide-angle X-ray scattering; grazing-incidence small- and wide-angle X-ray scattering; SAXS/WAXS; GISAXS/GIWAXS; imaging; microscopy; supramolecular order; computer programs

Categories

Chemistry, Multidisciplinary Crystallography

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Abstract

SUNBIM (supramolecular and submolecular nano-and biomaterials X-ray imaging) is a suite of integrated programs which, through a user-friendly graphical user interface, are optimized to perform the following: (i) q-scale calibration and two-dimensional -> one-dimensional folding on small-and wide-angle X-ray scattering (SAXS/WAXS) and grazing-incidence SAXS/WAXS (GISAXS/GIWAXS) data, also including possible eccentricity corrections for WAXS/GIWAXS data; (ii) background evaluation and subtraction, denoising, and deconvolution of the primary beam angular divergence on SAXS/GISAXS profiles; (iii) indexing of two-dimensional GISAXS frames and extraction of one-dimensional GISAXS profiles along specific cuts; (iv) scanning microscopy in absorption and SAXS contrast. The latter includes collection of transmission and SAXS data, respectively, in a mesh across a mm 2 area, organization of the as-collected data into a single composite image of transmission values or two-dimensional SAXS frames, analysis of the composed data to derive the absorption map and/or the spatial distribution, and orientation of nanoscale structures over the scanned area.

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Proceedings Paper Astronomy & Astrophysics

First measurement of the 94Nb(n,γ) cross section at the CERN n_TOF facility

J. Balibrea-Correa, V. Babiano-Suarez, J. Lerendegui-Marco, C. Domingo-Pardo, I. Ladarescu, A. Tarifeno-Saldivia, V. Alcayne, D. Cano-Ott, E. Gonzalez-Romero, T. Martinez, E. Mendoza, C. Guerrero, F. Calvino, A. Casanovas, U. Koster, M. Chiera, R. Dressler, E. A. Maugeri, D. Schumann, O. Aberle, S. Altieri, S. Amaducci, J. Andrzejewski, M. Bacak, C. Beltrami, S. Bennett, A. P. Bernardes, E. Berthoumieux, R. Beyer, M. Boromiza, D. Bosnar, M. Caamano, M. Calviani, F. Cerutti, G. Cescutti, E. Chiaveri, P. Colombetti, N. Colonna, P. Con-Sole Camprini, G. Cortes, M. A. Cortes-Giraldo, L. Cosentino, S. Cristallo, S. Dellmann, M. Di Castro, S. Di Maria, M. Diakaki, M. Dietz, E. Dupont, I. Duran, Z. Eleme, S. Fargier, B. Fernandez, B. Fernandez-Dominguez, P. Finocchiaro, S. Fiore, F. Garcia-Infantes, A. Gawlik-Rami Ega, G. Gervino, S. Gilardoni, F. Gunsing, C. Gustavino, J. Heyse, W. Hillman, D. G. Jenkins, E. Jericha, A. Junghans, Y. Kadi, K. Kaperoni, G. Kaur, A. Kimura, I. Knapova, M. Kokkoris, M. Krticka, N. Kyritsis, C. Lederer-Woods, G. Lerner, A. Manna, A. Masi, C. Massimi, P. Mastinu, M. Mastromarco, A. Mazzone, A. Mengoni, V. Michalopoulou, P. M. Milazzo, R. Mucciola, F. Murtas, E. Musacchio-Gonzalez, A. Musumarra, A. Negret, A. Perez de Rada, P. Perez-Maroto, N. Patronis, J. A. Pavon-Rodriguez, M. G. Pellegriti, J. Perkowski, C. Petrone, E. Pirovano, J. Plaza, S. Pomp, I. Porras, J. Praena, J. M. Quesada, R. Reifarth, D. Rochman, Y. Romanets, C. Rubbia, A. Sanchez-Caballero, M. Sabate-Gilarte, P. Schillebeeckx, A. Sekhar, A. G. Smith, N. V. Sosnin, M. E. Stamati, A. Sturniolo, G. Tagliente, D. Tarrio, P. Torres-Sanchez, E. Vagena, S. Valenta, V. Variale, P. Vaz, G. Vecchio, D. Vescovi, V. Vlachoudis, R. Vlastou, A. Wallner, P. J. Woods, T. Wright, R. Zarrella, P. Zugec

Summary: Accurate knowledge of neutron capture cross-sections for different isotopes is crucial for improving stellar models and understanding stellar evolution. In the case of Nb-94, the Nb-94(n,gamma) cross-section is important for determining the production of Mo-94 in AGB stars, which current stellar models cannot reproduce. Previous experimental data on Nb-94(n,gamma) were lacking due to difficulties in sample production and limitations in detection systems. A first measurement of the Nb-94(n,gamma) reaction was carried out at CERN n_TOF using a high-quality Nb-94 sample and an innovative detection system, revealing 18 resonances in Nb-94+n for the first time.

NUCLEAR PHYSICS IN ASTROPHYSICS - X, NPA-X 2022 (2023)

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Proceedings Paper Astronomy & Astrophysics

X17 search project with EAR2 neutron beam

Gianpiero Gervino, Carlo Gustavino, Evaristo Cisbani, Nicola Colonna, Giorgio Cotto, Marco D'Incecco, Salvatore Fiore, Cristian Massimi, Pierfrancesco Mastinu, Annamaria Mazzone, Elizabeth Musacchio-Gonzalez, Cristina Petrone, Michele Viviani

Summary: We present the latest progress of the n_TOF Collaboration Working Group in solving the puzzle of the existence of the new particle X17, first observed by the ATOMKI team in Hungary a few years ago but not confirmed or refuted by other independent experimental collaborations. We are designing a detection setup to achieve sufficient angular and energy resolution for measuring the decay paths and properties of X17, in collaboration with the Pisa Nuclear Theory team who has extensively studied the implications and characteristics of X17 based on the ATOMKI results.

NUCLEAR PHYSICS IN ASTROPHYSICS - X, NPA-X 2022 (2023)

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Article Physics, Nuclear

Advances and new ideas for neutron-capture astrophysics experiments at CERN n_TOF

C. Domingo-Pardo, V. Babiano-Suarez, J. Balibrea-Correa, L. Caballero, I. Ladarescu, J. Lerendegui-Marco, J. L. Tain, A. Tarifeno-Saldivia, O. Aberle, V. Alcayne, S. Altieri, S. Amaducci, J. Andrzejewski, M. Bacak, C. Beltrami, S. Bennett, A. P. Bernardes, E. Berthoumieux, M. Boromiza, D. Bosnar, M. Caamano, F. Calvino, M. Calviani, D. Cano-Ott, A. Casanovas, F. Cerutti, G. Cescutti, S. Chasapoglou, E. Chiaveri, N. M. Chiera, P. Colombetti, N. Colonna, P. Console Camprini, G. Cortes, M. A. Cortes-Giraldo, L. Cosentino, S. Cristallo, S. Dellmann, M. Di Castro, S. Di Maria, M. Diakaki, M. Dietz, R. Dressler, E. Dupont, I. Duran, Z. Eleme, S. Fargier, B. Fernandez, B. Fernandez-Dominguez, P. Finocchiaro, S. Fiore, F. Garcia-Infantes, A. Gawlik-Ramiega, G. Gervino, S. Gilardoni, E. Gonzalez-Romero, C. Guerrero, F. Gunsing, C. Gustavino, J. Heyse, W. Hillman, D. G. Jenkins, E. Jericha, A. Junghans, Y. Kadi, K. Kaperoni, F. Kaeppeler, G. Kaur, A. Kimura, I. Knapova, U. Koster, M. Kokkoris, M. Krticka, N. Kyritsis, C. Lederer-Woods, G. Lerner, A. Manna, T. Martinez, A. Masi, C. Massimi, P. Mastinu, M. Mastromarco, E. A. Maugeri, A. Mazzone, E. Mendoza, A. Mengoni, P. M. Milazzo, I. Moench, R. Mucciola, F. Murtas, E. Musacchio-Gonzalez, A. Musumarra, A. Negret, A. Perez de Rada, P. Perez-Maroto, N. Patronis, J. A. Pavon-Rodriguez, M. G. Pellegriti, J. Perkowski, C. Petrone, E. Pirovano, J. Plaza, S. Pomp, I. Porras, J. Praena, J. M. Quesada, R. Reifarth, D. Rochman, Y. Romanets, C. Rubbia, A. Sanchez, M. Sabate-Gilarte, P. Schillebeeckx, D. Schumann, A. Sekhar, A. G. Smith, N. V. Sosnin, M. Stamati, A. Sturniolo, G. Tagliente, D. Tarrio, P. Torres-Sanchez, J. Turko, S. Urlass, E. Vagena, S. Valenta, V. Variale, P. Vaz, G. Vecchio, D. Vescovi, V. Vlachoudis, R. Vlastou, T. Wallner, P. J. Woods, T. Wright, R. Zarrella, P. Zugec

Summary: This article presents selected developments and future ideas for the measurement of (n, gamma) data of astrophysical interest at CERN n_TOF. It discusses the MC-aided analysis methodology for low-efficiency radiation detectors in neutron-capture measurements and highlights the systematic accuracy. Recent instrumental advances, such as total-energy detectors with gamma-ray imaging for background suppression and an array of small-volume organic scintillators for high neutron-flux, are also presented. The article concludes with a discussion on astrophysics prospects related to the neutron-capture process of nucleosynthesis in the new NEAR activation area.

EUROPEAN PHYSICAL JOURNAL A (2023)

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Article Materials Science, Composites

High filler content acrylonitrile-butadiene-styrene composites containing tungsten and bismuth oxides for effective lead-free x-ray radiation shielding

Federico Olivieri, Roberto Avolio, Gennaro Gentile, Annamaria Mazzone, Rosanna Rizzi, Michele Nacucchi, Rachele Castaldo, Maria Emanuela Errico, Cinzia Giannini, Luigi Ambrosio, Marino Lavorgna

Summary: An innovative process was used to develop ABS-based composites with a high content of tungsten and bismuth oxide for lead-free x-ray shielding materials. The composites showed good mechanical properties and filler dispersion, and their x-ray attenuation properties were comparable to lead. Furthermore, the mechanical properties of the composites can be tailored by adjusting the filler content.

POLYMER COMPOSITES (2023)

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Article Astronomy & Astrophysics

The Number of Elementary Fermions and the Electromagnetic Coupling

Liberato De Caro

Summary: The electric charges and masses of elementary fermions in the Standard Model are related to fundamental physical constants through a simple equation. This equation provides a compact formula that links the free parameters of the Standard Model and imposes constraints on additional charged fermions beyond the Standard Model.

PARTICLES (2022)

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Proceedings Paper Quantum Science & Technology

Quantum-enhanced plenoptic imaging

Gianlorenzo Massaroa, Francesco Di Lena, Davide Giannellaa, Francesco Pepea, Francesco Scattarella, Sergii Vasyukov, Milena D'Angelo

Summary: This article demonstrates the use of photon correlations to overcome the limitations of conventional plenoptic imaging devices and achieve quantum-enhanced plenoptic imaging. Experimental results show an unprecedented combination of resolution, depth of field, refocusing capability, and depth extension. Significant advancements in acquisition speed are also discussed, achieved through both hardware and software solutions.

QUANTUM COMMUNICATIONS AND QUANTUM IMAGING XX (2022)

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Article Health Care Sciences & Services

Lifestyle in Obese Individuals during the COVID-19 Pandemic

Giovanna Pavone, Nicola Tartaglia, Michele De Fazio, Vincenzo Monda, Anna Valenzano, Giuseppe Cibelli, Rita Polito, Maria Ester La Torre, Fabio Scattarella, Laura Mosca, Alessia Scarinci, Gennaro Martines, Mario Pacilli, Giovanni Messina, Marcellino Monda, Antonietta Messina, Antonio Ambrosi

Summary: This study describes the impact of the COVID-19 pandemic on the behavior of individuals with obesity on the waiting list for bariatric surgery. The results show significant changes in lifestyle behaviors, including mood, dietary habits, physical activity, weight maintenance, and consumption of sweets.

HEALTHCARE (2022)

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