A microfocus X-ray fluorescence beamline at Indus-2 synchrotron radiation facility

Abstract

A microfocus X-ray fluorescence spectroscopy beamline (BL-16) at the Indian synchrotron radiation facility Indus-2 has been constructed with an experimental emphasis on environmental, archaeological, biomedical and material science applications involving heavy metal speciation and their localization. The beamline offers a combination of different analytical probes, e.g. X-ray fluorescence mapping, X-ray microspectroscopy and total-external-reflection fluorescence characterization. The beamline is installed on a bending-magnet source with a working X-ray energy range of 4-20 keV, enabling it to excite K-edges of all elements from S to Nb and L-edges from Ag to U. The optics of the beamline comprises of a double-crystal monochromator with Si(111) symmetric and asymmetric crystals and a pair of Kirkpatrick-Baez focusing mirrors. This paper describes the performance of the beamline and its capabilities with examples of measured results.

Effect of chemical environment on L subshell fluorescence yields using synchrotron radiation

“…The experiment was carried out at XRF BL-16, Indus-2 synchrotron light source, Indore, India [25]. The polychromatic beam produced by 2.5 GeV electrons in Indus-2 storage ring was monochromatized by using DCM with Si(111) symmetric and anti symmetric crystals (mounted side by side).…”

Design, development and first experiments on the X-ray imaging beamline at Indus-2 synchrotron source RRCAT, India

“…Indus-2 is a 2.5 GeV, 300 mA third-generation synchrotron radiation source, with a critical wavelength of 2 Å (Sahni et al, 2009;Tiwari et al, 2013). At present, Indus-2 is being operated at 2.5 GeV energy and 150 mA current.…”

Effect of synchrotron polarization on grazing incidence X-ray fluorescence analysis

“…The BL-16 beamline is designed to work in the x-ray energy range of 4 -25 keV. The details of the beamline and different experimental stations installed on this beamline are described elsewhere 12 . TXRF station of the BL-16 beamline comprises of an in-house developed 4-axes motorized sample manipulator installed on a vibration free optics table.…”