1.
Characterization of a submicro-X-ray fluorescence setup on the B16 beamline at Diamond Light Source.
J Synchrotron Radiat
; 25(Pt 4): 1189-1195, 2018 Jul 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-29979181
RESUMO
An X-ray fluorescence setup has been tested on the B16 beamline at the Diamond Light Source synchrotron with two different excitation energies (12.7 and 17â keV). This setup allows the scanning of thin samples (thicknesses up to several micrometers) with a sub-micrometer resolution (beam size of 500â nm × 600â nm determined with a 50â µm Au wire). Sensitivities and detection limits reaching values of 249â countsâ s-1â fg-1 and 4â ag in 1000â s, respectively (for Asâ Kα excited with 17â keV), are presented in order to demonstrate the capabilities of this setup. Sample measurements of a human bone and a single cell performed at B16 are presented in order to illustrate the suitability of the setup in biological applications.