Zobrazeno 1 - 10
of 1 266
pro vyhledávání: '"A. Astolfo"'
Autor:
G. Lioliou, C. Navarrete-León, A. Astolfo, S. Savvidis, D. Bate, M. Endrizzi, C. K. Hagen, A. Olivo
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract Beam tracking X-ray Phase Contrast Imaging is a “Shack-Hartmann” type approach which uses a pre-sample mask to split the x-rays into “beamlets” which are interrogated by a detector with sufficient resolution. The ultimate spatial res
Externí odkaz:
https://doaj.org/article/3ed204ca73d741f58b68f7225e776b98
Autor:
T. Partridge, A. Astolfo, S. S. Shankar, F. A. Vittoria, M. Endrizzi, S. Arridge, T. Riley-Smith, I. G. Haig, D. Bate, A. Olivo
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)
Dark-field X-ray imaging is sensitive to the microstructure of a material. Here, the authors combine this with a neural network algorithm to provide efficient material discrimination, e.g., of explosives vs non-threat materials.
Externí odkaz:
https://doaj.org/article/72cf7499952d4396b66337beadbaee8c
Autor:
A. Astolfo, I. Buchanan, T. Partridge, G. K. Kallon, C. K. Hagen, P. R. T. Munro, M. Endrizzi, D. Bate, A. Olivo
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract Multi-modal X-ray imaging allows the extraction of phase and dark-field (or “Ultra-small Angle Scatter”) images alongside conventional attenuation ones. Recently, scan-based systems using conventional sources that can simultaneously outp
Externí odkaz:
https://doaj.org/article/7485a915f5014626bed571bb35ee5529
Autor:
Rossi, Alessandro, Buchanan, Ian, Astolfo, Alberto, Michalska, Martyna, Briglin, Daniel, Charman, Anton, Josell, Daniel, Olivo, Sandro, Papakonstantinou, Ioannis
X-ray phase contrast imaging (XPCI) provides higher sensitivity to contrast between low absorbing objects that can be invisible to conventional attenuation-based X-ray imaging. XPCI's main application has been so far focused on medical areas at relat
Externí odkaz:
http://arxiv.org/abs/2409.11237
Autor:
Amaro, F. D., Antonietti, R., Baracchini, E., Benussi, L., Bianco, S., Campagnola, R., Capoccia, C., Caponero, M., Cardoso, D. S., de Carvalho, L. G. M., Cavoto, G., Costa, I. Abritta, Croce, A., Dané, E., Dho, G., Di Giambattista, F., Di Marco, E., D'Astolfo, M., D'Imperio, G., Fiorina, D., Iacoangeli, F., Islam, Z., Jùnior, H. P. L., Kemp, E., Maccarrone, G., Mano, R. D. Passos, Gregorio, R. R. M., Marques, D. J. Gaspar, Mazzitelli, G., McLean, A. G., Messina, A., Meloni, P., Monteiro, C. M. Bernardes, Nobrega, R. A., Pains, I. F., Paoletti, E., Passamonti, L., Petrucci, F., Piacentini, S., Piccolo, D., Pierluigi, D., Pinci, D., Prajapati, A., Renga, F., Roque, R. J. da Cruz, Rosatelli, F., Russo, A., Santos, J. M. F. dos, Saviano, G., Silva, P. A. O. C., Spooner, N. J. Curwen, Tesauro, R., Tomassini, S., Torelli, S.
The CYGNO experiment aims to build a large ($\mathcal{O}(10)$ m$^3$) directional detector for rare event searches, such as nuclear recoils (NRs) induced by dark matter (DM), such as weakly interactive massive particles (WIMPs). The detector concept c
Externí odkaz:
http://arxiv.org/abs/2406.05713
Autor:
Partridge, Thomas, Shankar, Sukrit S., Buchanan, Ian, Modregger, Peter, Astolfo, Alberto, Bate, David, Olivo, Alessandro
Recent innovations in x-ray technology (namely phase-based and energy-resolved imaging) offer unprecedented opportunities for material discrimination, however they are often used in isolation or in limited combinations. Here we show that the optimize
Externí odkaz:
http://arxiv.org/abs/2309.11943
Autor:
Doherty, Adam, Buchanan, Ian, Astolfo, Alberto, Savvidis, Savvas, Gerli, Mattia F. M., Citro, Antonio, Olivo, Alessandro, Endrizzi, Marco
X-ray dark-field imaging creates a representation of the sample where contrast is generated by subresolution features within the volume under inspection. These are detected by a local measurement of the radiation field's angular distribution, and how
Externí odkaz:
http://arxiv.org/abs/2308.09465
Autor:
Buchanan, Ian, Cipiccia, Silvia, Peiffer, Carlo, Navarrete-León, Carlos, Astolfo, Alberto, Partridge, Tom, Esposito, Michela, Fardin, Luca, Bravin, Alberto, Hagen, Charlotte K, Endrizzi, Marco, Munro, Peter RT, Bate, David, Olivo, Alessandro
X-ray dark-field or ultra-small angle scatter imaging has become increasingly important since the introduction of phase-based x-ray imaging and is having transformative impact in fields such as in vivo lung imaging and explosives detection. Here we s
Externí odkaz:
http://arxiv.org/abs/2307.06301
Most material discrimination in security inspections is based on dual-energy x-ray imaging, which enables the determination of a material's effective atomic number (Zeff) as well as electron density and its consequent classification as organic or ino
Externí odkaz:
http://arxiv.org/abs/2212.11525
Autor:
Navarrete-Leon, Carlos, Doherty, Adam, Savvidis, Savvas, Gerli, Mattia F. M., Piredda, Giovanni, Astolfo, Alberto, Cipiccia, Silvia, Bate, David, Hagen, Charlotte K., Olivo, Alessandro, Endrizzi, Marco
X-ray micro tomography is a non-destructive, three-dimensional inspection technique applied across a vast range of fields and disciplines, ranging from research to industrial, encompassing engineering, biology and medical research. Phase-contrast ima
Externí odkaz:
http://arxiv.org/abs/2212.07963