BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//IXAS: The International X-ray Absorption Society - ECPv6.15.15//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:IXAS: The International X-ray Absorption Society
X-ORIGINAL-URL:https://xrayabsorption.org
X-WR-CALDESC:Events for IXAS: The International X-ray Absorption Society
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
TZNAME:UTC
DTSTART:20190101T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;VALUE=DATE:20200723
DTEND;VALUE=DATE:20200724
DTSTAMP:20260718T110820
CREATED:20200621T135236Z
LAST-MODIFIED:20200727T030438Z
UID:490-1595462400-1595548799@xrayabsorption.org
SUMMARY:Matthew Marcus: Soft x-ray spectromicroscopy in extraterrestrial materials
DESCRIPTION:Extraterrestrial materials such as meteorites and interplanetary dust particles are often very complex and non-uniform\, with diverse species within a small sample. In some cases\, especially for the products of sample-return missions\, the available samples are small and precious. X-ray micro- and nano-spectroscopy are ideal complements to other methods such as TEM and nano-SIMS. In this talk\, I will review several examples from the literature showing how X-ray spectromicroscopy has been used to study extraterrestrial materials and infer their histories of formation and alteration. I will also review some experimental techniques\, especially STXM. \nReferences: \n\nSandford\, Scott A.\, et al. “Organics captured from comet 81P/Wild 2 by the Stardust spacecraft.” Science 314\, no. 5806 (2006): 1720-1724.\nLo\, Yuan Hung\, et al. “Multimodal x-ray and electron microscopy of the Allende meteorite.” Science advances 5\, no. 9 (2019): eaax3009.\nVan Aken\, P. A.\, and B. Liebscher. “Quantification of ferrous/ferric ratios in minerals: new evaluation schemes of Fe L 23 electron energy-loss near-edge spectra.” Physics and Chemistry of Minerals 29\, no. 3 (2002): 188-200.
URL:https://xrayabsorption.org/events/journalclub-matthew-marcus/
CATEGORIES:XAFS Journal Club
END:VEVENT
END:VCALENDAR