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).
Cite
@article{arxiv.1310.1336,
title = {Experimental validation of XRF inversion code for Chandrayaan-1},
author = {P. S. Athiray and M. Sudhakar and M. K. Tiwari and S. Narendranath and G. S. Lodha and S. K. Deb and P. Sreekumar and S. K. Dash},
journal= {arXiv preprint arXiv:1310.1336},
year = {2013}
}