Problem afm2 SNF 2007-03-05 15:49:39: Reflected signal really weak @ the detector

closega at snf.stanford.edu closega at snf.stanford.edu
Mon Mar 5 15:49:40 PST 2007


The reflected signal at the detector is really weak. I was confident that the laser was hitting the tip, but the signal as read on the red bar of the scanner head was really weak. An more experienced user tried to help me but we faced the same problem. Changing the tip didn't help. Aligning the detector didn't help either. The sum signal read the whole time zero.
-Gael




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