Synchrotron X-Ray irradiation of Stardust interstellar candidates: from ''no'' to ''low'' damage effects
Although synchrotron radiation X-Ray fluorescence (SR-XRF) is among the least destructive analysis methods applied to rare extraterrestrial grains, we have observed radiation damage effects following high flux synchrotron analyses. Track 30 of the IS collector of the Stardust mission , containing 2...
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creator | Simionovici, Alexandre Allen, Carlton Bajt, Sasa Bastien, Ron Bechtel, H. A. Borg, Janet Brenker, Frank Bridges, John C. Brownlee, D.E. Burchell, Mark J. Burghammer, Manfred Butterworth, Anna L. Cloetens, P. Davis, Andy M. Floss, Christine Flynn, George Frank, David Gainsforth, Zack Grün, Eberhard Heck, Philipp R. Hillier, Jon K. Hoppe, Peter Howard, L. Huss, Gary R. Huth, Joachim Kearsley, Anton T. King, A.J. Lai, Barry Leitner, Jan Lemelle, Laurence Leroux, Hugues Lettieri, Robert Marchant, Will Nittler, Larry R. Ogliore, Ryan Postberg, Frank Sandford, S. A. Sans Tresseras, Juan-Angel Schoonjans, Tom Schmitz, Sylvia Silversmit, G. Solé, Vicente A. Srama, Ralf Stephan, Thomas Stodolna, Julien Stroud, Rhonda M. Sutton, Steve Trieloff, Mario Tsou, Peter Tsuchiyama, Akira Tyliczszak, Tolek Vekemans, Bart Vincze, Laszlo Westphal, Andrew J. Zevin, Dan Zolensky, Michael E. |
description | Although synchrotron radiation X-Ray fluorescence (SR-XRF) is among the least destructive analysis methods applied to rare extraterrestrial grains, we have observed radiation damage effects following high flux synchrotron analyses. Track 30 of the IS collector of the Stardust mission , containing 2 candidates dubbed Orion and Sirius was analyzed at ESRF, France, on beamlines ID13 and ID22NI by nano-XRF/XRD scanning methods. Beam damage effects were noticed on both samples and a quantitative analysis of their irradiation history was established , allowing us to propose new experimental protocols as well as fluence limits, minimizing such effects in the future. The purpose of this study is to present these facts, analyze potential damage mechanisms and offer alternatives. |
doi_str_mv | 10.1111/j.1945-5100.2011.01221.x |
format | Article |
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source | Wiley Online Library Journals Frontfile Complete; Wiley Online Library Free Content; EZB-FREE-00999 freely available EZB journals |
subjects | Earth Sciences Geomorphology Sciences of the Universe |
title | Synchrotron X-Ray irradiation of Stardust interstellar candidates: from ''no'' to ''low'' damage effects |
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