The Open UniversitySkip to content

The scientific rationale for the C1XS X-ray spectrometer on India’s Chandrayaan-1 mission to the moon

Crawford, I. A.; Joy, K. H.; Kellett, B. J.; Grande, M.; Anand, M.; Bhandari, N.; Cook, A. C.; d’Uston, L.; Fernandes, V. A.; Gasnault, O.; Goswami, J.; Howe, C. J.; Huovelin, J.; Koschny, D.; Lawrence, D. J.; Maddison, B. J.; Maurice, S.; Narendranath, S.; Pieters, C.; Okada, T.; Rothery, D. A.; Russell, S. S.; Sreekumar, P.; Swinyard, B.; Wieczorek, M. and Wilding, M. (2009). The scientific rationale for the C1XS X-ray spectrometer on India’s Chandrayaan-1 mission to the moon. Planetary and Space Science, 57(7) pp. 725–734.

DOI (Digital Object Identifier) Link:
Google Scholar: Look up in Google Scholar


The UK-built Chandrayaan-1 X-ray Spectrometer(C1XS)will fly as an ESA instrument on India’s Chandrayaan-1 mission to the Moon, launched in October2008. C1XS builds on experience gained with the earlier D-CIXS instrument on SMART-1, but will be a scientifically much more capable instrument. Here we describe the scientific objectives of this instrument, which include mapping the abundances of
the major rock-forming elements (principally Mg, Al, Si, Ti, Ca and Fe) in the lunar crust. These data will aid in determining whether regional compositional differences (e.g., the Mg/Fe ratio) are consistent with models of lunar crustal evolution. C1XS data will also permit geochemical studies of smaller scale features, such as the ejecta blankets and central peaks of large impact craters, and individual lava flows and pyroclastic deposits. These objectives all bear on important, and currently unresolved, questions in lunar science, including the structure and evolution of any primordial magma ocean, as revealed by vertical and lateral geochemical variations in the crust, and the composition of the lunar mantle, which will further constrain theories of the Moon’s origin, thermal history and internal structure.

Item Type: Article
Copyright Holders: 2008 Elsevier Ltd
ISSN: 0032-0633
Keywords: moon; lunar science; X-ray spectroscopy;
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 18548
Depositing User: Mahesh Anand
Date Deposited: 02 Oct 2009 15:12
Last Modified: 29 Nov 2016 16:48
Share this page:


Scopus Citations

▼ Automated document suggestions from open access sources

Actions (login may be required)

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340