High-resolution x-ray 3D imaging of bone micro-structure
Osteoporosis impact on public health is sharply increasing justifying a significant effort to diagnose, reat and understand this disease. Bones have been imaged with x-rays for almost a century and the basic technology for clinical image is well established, but with the recent development of large scale synchrotron light sources and high-end microfiches x-ray generators, imaging of the intricate bone inner structure with a few micron resolution become possible. Laser driven betatron x-ray microscope was built and used to demonstrate the feasibility of high-resolution bone imaging in the Astra-Gemini laser facility (UK). A sample of femur trabecular bone was imaged from multiple angles and a 3D model of the bone was built using tomographic techniques to a resolution below 50 micron. This demonstration renew the interest in the development of compact laser-plasma electron accelerators and its applications. It also opens prospects for its use in clinic diagnostics in the medium term.
Welcome to the website of the X-GoLP team, the experimental team of the Group for Lasers and Plasmas of the Instituto de Plasmas e Fusão Nuclear at Instituto Superior Técnico.
Congratulations to Rui Oliveira e Silva for successfully defend his MSc thesis in Physics Engineering!
In his thesis entitled “Design of optical spectrometers with RamSERS project”, Rui evaluates the parameters for the design of two Raman spectrometers , with the goal of achieving very competitive specifications using off-the-shelf optical elements. The design is verified by paraxial analysis and Zemax.
The ultimate goal of the project is to develop…
Celso João, who successfully defended his PhD thesis in 2016, has now been awarded the Prize for the Best PhD Thesis in Optics by the Portuguese Society for Optics and Photonics (SPOF).
Celso, a postdoc researcher and member of the Group for Lasers and Plasmas, has specialised in high power laser design and development. In his thesis entitled “Diode-pumped solid-state lasers for optical parametric…