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Title: Experimental validation of XRF inversion code for Chandrayaan-1
Authors: Athiray, P. S
Sudhakar, M
Tiwari, M. K
Narendranath, S
Lodha, G. S
Deb, S. K
Sreekumar, P
Dash, S. K
Keywords: X-ray Fluorescence (XRF);Chandrayaan-1;Fundamental parameter;C1XS;Lunar chemistry
Issue Date: Dec-2013
Publisher: Elsevier B.V.
Citation: Planetary and Space Science, Vol. 89, pp. 183–187
Abstract: We have developed an algorithm (x2abundance) to derive the lunar surface chemistry from X-ray fluorescence (XRF) data for the Chandrayaan-1 X-ray Spectrometer (C1XS) experiment. The algorithm converts the observed XRF line fluxes to elemental abundances with uncertainties. We validated the algorithm in the laboratory using high Z elements (20<Z<30) published in Athiray et al. (2013). In this paper, we complete the exercise of validation using samples containing low Z elements, which are also analogous to the lunar surface composition (ie., contains major elements between 11<Z<30). The paper summarizes results from XRF experiments performed on Lunar simulant (JSC-1A) and anorthosite using a synchrotron beam excitation. We also discuss results from the validation of x2abundance using Monte Carlo simulation (GEANT4 XRF simulation).
Description: Restricted Access
ISSN: 0032-0633
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Appears in Collections:IIAP Publications

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