Problem sem4160 SNF 2012-05-10 16:04:01: aperture strip hole lost by previous user before kavehm

jwc at jwc at
Thu May 10 18:23:37 PDT 2012

found Y all the way to stop with aperture strip aligned off far edge.
-12 turns in Y and +~30 turns in x to find 1 mm hole
final adjustments to 5 kv aperture no 4 30 mm
nice bright and stigmated and aperture strip has 4 hole positions avail.
handed off to Ben Chui for testing

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