Articles written in Pramana – Journal of Physics
Volume 76 Issue 2 February 2011 pp 261-269 Invited Papers
The present study utilized the new hard X-ray microspectroscopy beamline facility, X27A, available at NSLS, BNL, USA, for elemental mapping. This facility provided the primary beam in a small spot of the order of $\sim 10 \mu m$, for focussing. With this spatial resolution and high ﬂux throughput, the synchrotron-based X-ray ﬂuorescent intensities for Mn, Fe, Zn, Cr, Ti and Cu were measured using a liquid-nitrogen-cooled 13-element energy-dispersive high-purity germanium detector. The sample is scanned in a `step-and-repeat’ mode for fast elemental mapping measurements and generated elemental maps at 8, 10 and 12 keV, from a small animal shell (snail). The accumulated trace elements, from these biological samples, in small areas have been identiﬁed. Analysis of the small areas will be better suited to establish the physiology of metals in speciﬁc structures like small animal shell and the distribution of other elements.
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