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Retention of ion-implanted-xenon in olivine: Dependence on implantation dose

Melcher, C. L. and Tombrello, T. A. and Burnett, D. S. (1983) Retention of ion-implanted-xenon in olivine: Dependence on implantation dose. Geochimica et Cosmochimica Acta, 47 (10). pp. 1707-1712. ISSN 0016-7037. doi:10.1016/0016-7037(83)90020-0. https://resolver.caltech.edu/CaltechAUTHORS:20141031-103904895

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Abstract

The diffusion of Xe in olivine, a major mineral in both meteorites and lunar samples, was studied. Xe ions were implanted at 200 keV into single-crystal synthetic-forsterite targets and the depth profiles were measured by alpha particle backscattering before and after annealing for 1 hour at temperatures up to 1500°C. The fraction of implanted Xe retained following annealing was strongly dependent on the implantation dose. Maximum retention of 100% occurred for an implantion dose of 3 × 10^(15) Xe ions/cm^2. Retention was less at lower doses, with ≥ 50% loss at 1 × 10^(14) Xe ions/cm^2. Taking the diffusion coefficient at this dose as a lower limit, the minimum activation energy necessary for Xe retention in a 10 μm layer for 10^7 years was calculated as a function of metamorphic temperature. For example, an activation energy of 50 kcal/mole implies Xe retention may be possible for metamorphic temperatures below 500°C.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0016-7037(83)90020-0 DOIArticle
http://www.sciencedirect.com/science/article/pii/0016703783900200PublisherArticle
ORCID:
AuthorORCID
Burnett, D. S.0000-0001-9521-8675
Additional Information:© 1983 Pergamon Press Ltd. Received February 3, 1983; Accepted in revised form June 28, 1983. We are grateful to T. Banwell for performing the implantations and to T. J. Ahrens for the single crystal forsterite. This work was supported by the NSF [PHY79-23638] and NASA [NAGW-148].
Funders:
Funding AgencyGrant Number
NSFPHY79-23638
NASANAGW-148
Issue or Number:10
DOI:10.1016/0016-7037(83)90020-0
Record Number:CaltechAUTHORS:20141031-103904895
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20141031-103904895
Official Citation:Melcher, C. L., Tombrello, T. A., & Burnett, D. S. (1983). Retention of ion-implanted-xenon in olivine: Dependence on implantation dose. Geochimica et Cosmochimica Acta, 47(10), 1707-1712. doi: http://dx.doi.org/10.1016/0016-7037(83)90020-0
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:51118
Collection:CaltechAUTHORS
Deposited By: Joanne McCole
Deposited On:31 Oct 2014 18:53
Last Modified:10 Nov 2021 19:06

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