Hi all - I'm sending this to both lists so I can get everyone's wisdom. I was explaining to a class about setting up gas detectors and the difference between differential and integral modes. The question came up as to why one would ever operate in intergral mode. I didn't have a good answer (obviously setting up really tight parameters in differential mode can cause problems) - why not use differential mode with wide windows instead of integral mode? Is this a holdover from earlier electronics? Ken in Alaska **** 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 *