Open AccessCharacterization of a submicro‐X‐ray fluorescence setup on the B16 beamline at Diamond Light Source
Author(s) -
Rauwolf M.,
Turyanskaya A.,
Ingerle D.,
Szoboszlai N.,
Pape I.,
Malandain A. W.,
Fox O. J. L.,
Hahn L.,
Sawhney K. J. S.,
Streli C.
Publication year - 2018
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577518006203
Subject(s) - beamline , synchrotron , diamond , optics , synchrotron light source , materials science , micrometer , fluorescence , resolution (logic) , excitation , characterization (materials science) , excited state , beam (structure) , analytical chemistry (journal) , physics , chemistry , atomic physics , quantum mechanics , storage ring , artificial intelligence , computer science , composite material , chromatography
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 17 keV). This setup allows the scanning of thin samples (thicknesses up to several micrometers) with a sub‐micrometer resolution (beam size of 500 nm × 600 nm determined with a 50 µm Au wire). Sensitivities and detection limits reaching values of 249 counts s −1 fg −1 and 4 ag in 1000 s, respectively (for As K α excited with 17 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.