What Is Going On Here? Standards for Glass Analysis Satellite Lines? Beta Lines?

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Presentation transcript:

What Is Going On Here?

Standards for Glass Analysis Satellite Lines? Beta Lines?

Peak Shifts? Subtle peak shift effects demonstrated for different silicate minerals Fournelle, 2004, 2005

Between glass and crystal SiO2?

Sample Damage? SiO2 Glass SiO2 Quartz

Beam Damage? Si Ka 15 keV, 30 nA, focussed

Beam Damage? O Ka

Or Sub Surface Charging? For more information see: Cazaux, 2004 SiO2 Glass (80 sec elapsed time) ELEM: Si Si Si O AVER: SDEV: VOL%: DEV%: SiO2 Quartz (80 sec elapsed time) ELEM: Si Si Si O AVER: SDEV: VOL%: DEV%: