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D/H fractionation during sublimation of water ice at low temperatures into a vacuum

Mortimer, James; Lécuyer, Christophe; Fourel, Franҫois and Carpenter, James (2018). D/H fractionation during sublimation of water ice at low temperatures into a vacuum. Planetary And Space Science, 158 pp. 25–33.

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The study outlined in this article was carried out within the framework of ESA's PROSPECT programme, which will provide both a sample drill and miniaturised mass spectrometer system for flight on-board the planned Russian Luna-27 mission to the lunar south pole. There, it aims to collect samples of regolith, containing water ice and other volatiles, and to make isotopic and abundance measurements to fingerprint the source(s) of these volatile species. However, it is necessary to first consider how any localised temperature increases during sample acquisition activities may result in water ice loss via sublimation and thus isotopic modification of the remaining residual ice. To attempt to address these concerns, a suite of sublimation experiments was conducted at the Laboratoire de Géologie de Lyon, where a method for performing such experiments was already established (Lécuyer et al.,2017). The results of this work will help to inform modelling which will extrapolate the data down to lunar-relevant conditions.

Item Type: Journal Item
Copyright Holders: 2018 Elsevier Ltd.
ISSN: 0032-0633
Project Funding Details:
Funded Project NameProject IDFunding Body
In support of PROSPECT and Prospect User Group related activitiesNot SetEuropean Space Agency
Keywords: Moon; sublimation; fractionation; water; PROSPECT
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Space
Item ID: 55156
Depositing User: James Mortimer
Date Deposited: 22 May 2018 16:00
Last Modified: 15 May 2019 18:42
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