John, You can look for kirkendall and see the effect on BSE and varying kV. I will think about the heterogenous sample a little more. Jorge -----Original Message----- From: JEOL-Focused Probe Users List [mailto:[log in to unmask]] On Behalf Of John H Fournelle Sent: Tuesday, October 03, 2017 5:53 PM To: [log in to unmask] Subject: EXT: [PROBEUSERS] stacking BSE images acquired at various Kv’s Can anyone come up with the reference/s where someone showed that stacking BSE images acquired at various Kv’s could show something about the upper surface structure in a heterogenous sample? Thanks. John **** JEOL Probe Users Listserver Moderator: Anette von der Handt, [log in to unmask], Electron Microprobe Lab, University of Minnesota Post a message: send your message to [log in to unmask] Unsubscribe: send "SIGNOFF PROBEUSERS" to [log in to unmask] On-line help and FAQ: http://probelab.geo.umn.edu/jeoluserlist.html * **** JEOL Probe Users Listserver Moderator: Anette von der Handt, [log in to unmask], Electron Microprobe Lab, University of Minnesota Post a message: send your message to [log in to unmask] Unsubscribe: send "SIGNOFF PROBEUSERS" to [log in to unmask] On-line help and FAQ: http://probelab.geo.umn.edu/jeoluserlist.html *