Future of laser-based X-ray sources for medical imaging

Intense High-Contrast FemtosecondK-Shell X-Ray Source from Laser-Driven Ar Clusters

“…[1][2][3][4][5]. Such hard x-ray sources have a number of interesting applications in imaging [6][7][8][9]. This kind of intense and ultrafast hard x-ray source can pose as a possible alternative to the synchrotron radiation due to its compactness, its low cost compared to big facility and its fs pulse duration, and is, therefore, of interest for practically using in majority of labs and hospitals.…”

Monochromatic X-Ray Emission from Laser Produced Plasma with A Clean Ultra-Short Laser Pulse

“…In our experiment, preplasma formation can be prevented with a laser contrast ratio of 10 11 . The plasma is directly generated by the interaction of main pulse with the solid surface.…”

“…7,8 Moreover, the monochromatic Kα emission from ultrashort laser plasma interaction usually has a very short duration, high photon energy and a small source size. These features provide a possibility to use this X-ray source for inner shell photoionization, 9,10 ultra-fast biomedical imaging, 11 lattice dynamics probe 12,13 and basic research on radiation biology. 14 The energy spectrum of hot electrons generated by laser pulses has been experimentally and theoretically investigated as a function of the incident laser intensity and wavelength.…”

ASUR : plateforme d'applications des sources laser ultra-rapides pour l'imagerie X et l'interaction laser-matière

“…L'analyse spectrale et polarimétrique des impulsions pompe et sonde transmises et réfléchies par le matériau nécessite la gestion rigoureuse du spectre du laser et du plasma émis avec des filtrages adéquats. La connaissance expérimentale de la dynamique de création du plasma d'électrons libres couplée à des travaux de modélisation théorique basés sur l'équation de Helmholtz [7] technologiques accomplis sur les sources lasers ultrabrèves et de forte puissance [8]. L'émergence de ces nouvelles sources X ultrabrèves ouvre de nouveaux horizons pour la science ultra-rapide et la science des rayons X. Les applications en cours et potentielles sont nombreuses et variées (physique du solide et des surfaces, physique des plasmas, femtochimie, biologie, santé, etc.).…”