Investigation of radiation enhanced diffusion of magnesium in substrates flown on the NASA genesis mission

Title: Investigation of radiation enhanced diffusion of magnesium in substrates flown on the NASA genesis mission
Creator: King, B. V.; Pellin, M. J.; Burnett, D. S.
Relation: Applied Surface Science Vol. 255, Issue 4, p. 1455-1457
Publisher Link: http://dx.doi.org/10.1016/j.apsusc.2008.05.158
Publisher: Elsevier
Resource Type: journal article
Date: 2008
Description: The thermal diffusion of an Mg implant in Si has been measured with SIMS and compared to RIMS (resonant ionisation mass spectrometry) measurements of Mg implantation and diffusion in Si wafers exposed to solar wind irradiation in the NASA Genesis mission. The Genesis samples show much more surface segregation that the samples annealed in the laboratory, due to diffusion and segregation of the implanted Mg to the heavily damaged near surface regions of the Genesis wafers. This Mg transport has been modeled by solving a set of stiff differential equations and found to agree with RIMS measurements for a Mg interstitial migration energy of 0.7 eV.
Subject: SIMS; RIMS; genesis; magnesium; silicon; segregation
Identifier: http://hdl.handle.net/1959.13/43378
Identifier: uon:5498
Identifier: ISSN:0169-4332
Language: eng
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