RAITH 150 Start up status update 1730 hrs. WED. 1-7-2003
jwc at snf.stanford.edu
Wed Jan 7 17:38:36 PST 2004
We are still working to bring the system back up after shut down.
We have encountered several minor problems, which have now been
resolved, but my original time estimate has slipped back by at least
another day. We are hoping now to allow access to the system Friday
with some opportunities to help us test Thursday afternoon and
overnight. Full update tomorrow at Noon.
Today I have completed the X-Y stage calibrations and the stage is
The stage leveling control section is next...
LEO and FE-Gun:
This afternoon we had 'first light' on the FE-Gun and it will require
overnight to stabilize.
Thursday AM we plan to realign the column and adjust and calibrate the
three magnification amplifiers and perform the centering calibrations
for the aperture align and stigmation amplifiers to the deflection plate
Once we have completed these task if the beam current and imaging
resolution is acceptable we will start with qualification of the system
for line width, resolution, and stitching. Note that SEM measurements
made at the last day of the year DID NOT display suitable imaging
resolution and we are evaluating the FE-tip condition with respect to
the beam diameter.
(read: Beam spot size)
Both system's data and image files were back up today and new emergency
recovery disk were generated.
What does this mean for You?
Please don't expect access to the system until we are up and have
established new baselines for the system. I am hoping we can have this
finished by late Friday. There possibly may be access for people
willing to help test the system on Thursday afternoon and overnight for
RAITH Champions and experienced users whom are reserved on the CORAL
Please see me directly if you have questions.
Thank you for your support!
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