Abstract
The CEA nuclear microprobe, set on one of the beam lines of a 4 MV Van de Graaff accelerator, is briefly described. Its possibilities and performances are recalled. It is used to study healthy teeth sections irradiated by a laser beam. The major elements (P, Ca) and other heavier elements of the mineral part are determined by PIXE, light elements (C, N) are determined by direct observation of (d, p) and (d, α) nuclear reactions. The results obtained show very important modifications between elemental composition of laser-subjected zones and control zones. Laser irradiated zones are characterized by several layers of different composition. Indeed, we can observe on one hand, diminution of organic material (C, N) in zones with high mineral concentration (Ca, P), and on the other hand zones depleted in mineral which contain more organic material.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
