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Planetary X-ray fluorescence analogue laboratory experiments and an elemental abundance algorithm for C1XS

Publication ,  Journal Article
Weider, SZ; Swinyard, BM; Kellett, BJ; Howe, CJ; Joy, KH; Crawford, IA; Gow, J; Smith, DR
Published in: Planetary and Space Science
October 1, 2011

We have conducted laboratory experiments as an analogue to planetary XRF (X-ray fluorescence) missions in order to investigate the role of changing incidence (and phase) angle geometry and sample grain-size on the intensity of XRF from regolith-like samples. Our data provide evidence of a grain-size effect, where XRF line intensity decreases with increasing sample grain-size, as well as an almost ubiquitous increase in XRF line intensity above incidence angles of ∼60°. Data from a lunar regolith simulant are also used to test the accuracy of an XRF abundance algorithm developed at the Rutherford Appleton Laboratory (RAL), which is used to estimate the major element abundance of the lunar surface from Chandrayaan-1 X-ray Spectrometer (C1XS) XRF data. In ideal situations (i.e.; when the input spectrum is well defined and the XRF spectrum has a sufficient signal to noise ratio) the algorithm can recover a known rock composition to within 1.0 elemental wt% (1σ). © 2011 Elsevier Ltd. All rights reserved.

Duke Scholars

Published In

Planetary and Space Science

DOI

ISSN

0032-0633

Publication Date

October 1, 2011

Volume

59

Issue

13

Start / End Page

1393 / 1407

Related Subject Headings

  • Astronomy & Astrophysics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 3706 Geophysics
  • 0201 Astronomical and Space Sciences
 

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Weider, S. Z., Swinyard, B. M., Kellett, B. J., Howe, C. J., Joy, K. H., Crawford, I. A., … Smith, D. R. (2011). Planetary X-ray fluorescence analogue laboratory experiments and an elemental abundance algorithm for C1XS. Planetary and Space Science, 59(13), 1393–1407. https://doi.org/10.1016/j.pss.2011.05.005
Weider, S. Z., B. M. Swinyard, B. J. Kellett, C. J. Howe, K. H. Joy, I. A. Crawford, J. Gow, and D. R. Smith. “Planetary X-ray fluorescence analogue laboratory experiments and an elemental abundance algorithm for C1XS.” Planetary and Space Science 59, no. 13 (October 1, 2011): 1393–1407. https://doi.org/10.1016/j.pss.2011.05.005.
Weider SZ, Swinyard BM, Kellett BJ, Howe CJ, Joy KH, Crawford IA, et al. Planetary X-ray fluorescence analogue laboratory experiments and an elemental abundance algorithm for C1XS. Planetary and Space Science. 2011 Oct 1;59(13):1393–407.
Weider, S. Z., et al. “Planetary X-ray fluorescence analogue laboratory experiments and an elemental abundance algorithm for C1XS.” Planetary and Space Science, vol. 59, no. 13, Oct. 2011, pp. 1393–407. Scopus, doi:10.1016/j.pss.2011.05.005.
Weider SZ, Swinyard BM, Kellett BJ, Howe CJ, Joy KH, Crawford IA, Gow J, Smith DR. Planetary X-ray fluorescence analogue laboratory experiments and an elemental abundance algorithm for C1XS. Planetary and Space Science. 2011 Oct 1;59(13):1393–1407.
Journal cover image

Published In

Planetary and Space Science

DOI

ISSN

0032-0633

Publication Date

October 1, 2011

Volume

59

Issue

13

Start / End Page

1393 / 1407

Related Subject Headings

  • Astronomy & Astrophysics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 3706 Geophysics
  • 0201 Astronomical and Space Sciences