Search found 3 matches

by arsampson
Sun Aug 06, 2006 1:07 am
Forum: Stardust@home Discussion
Topic: Scanning Electron Microscope?
Replies: 24
Views: 26773

SEM analysis won't be attemped until individual particles are removed from the aerogel. There will probably be some small samples of the aerogel subjected to SEM just to characterize the surface condition and possibly track damage (I wouldn't want to do that cross sectioning), but the SEM doesn't ha...
by arsampson
Fri Aug 04, 2006 11:25 pm
Forum: Message Board Archive
Topic: "I think I've found a track, what do you think?" A
Replies: 391
Views: 363897

Probably not tracks, rather small sub-surface particles which could still have been captured on mission, just not at a high velocity. Optical microscopes have a very small focal depth (depth of view) and those particles are probably just a few microns below the surface, which from the various surfac...
by arsampson
Fri Aug 04, 2006 9:20 pm
Forum: Message Board Archive
Topic: multiple tracks
Replies: 0
Views: 4302

multiple tracks

I encountered two clear tracks in movie 42159B tonight. Chose one, then hit the back button to try to label the other. Got the message saying it wouldn't count. This wasn't a calibration movie so it begs a couple of questions. Could that message and restriction be placed only on calibration movies t...