From emyers at snf.stanford.edu  Thu Mar 26 08:29:07 2009
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Thu, 26 Mar 2009 08:29:07 -0700
Subject: Problem woollam SNF 2009-03-26 08:29:06: END OF LAMP LIFE
Message-ID: <mailman.66.1356284075.5404.woollam-pcs@snf.stanford.edu>

When using the system yesterday the spectra was very noisy.  This means we have reached the end of the useful life of the lamp.  The lamp hours was~810 hours.  You can still make thickness measurements, but any n & k values will be very noisy.



From emyers at snf.stanford.edu  Fri Mar 27 17:39:28 2009
From: emyers at snf.stanford.edu (emyers at snf.stanford.edu)
Date: Fri, 27 Mar 2009 17:39:28 -0700
Subject: Comment woollam SNF 2009-03-27 17:39:28: Lamp Seemed Fine
Message-ID: <mailman.67.1356284075.5404.woollam-pcs@snf.stanford.edu>

During today's training, I was getting a very clean spectra.  I don't know if there was sample interactions, unstable light or what the other day.  If you see a noisy spectra let me know, othewise I'm inclined to leave the lamp in longer.  This lamp is about 200 hours younger than the last lamp I changed.