[Sneap] tungsten mesh sought for gridded einzel
Albert Zondervan
A.Zondervan at gns.cri.nz
Wed Oct 31 18:58:02 EDT 2007
Hi SNEAPers
>> Where do I source electroformed tungsten mesh ?
I am servicing a gridded Einzel lens and its tungsten, 1mm pitch, grid has
deteriorated somewhat. I think the existing grid was custom-made a long
time ago by an american company, via electroforming. Obviously,
light-optical transmission should be >=90%. Minimum required area 100x100
mm2.
Your suggestions and comments most welcome. If you have some spare on
hand, I'll be happy to pay costs.
cheers
Albert
--
Albert Zondervan
National Isotope Centre
GNS Science A.Zondervan at gns.cri.nz
PO Box 31-312, Lower Hutt ph: +64 4 570-4617
New Zealand fx: +64 4 570-4657
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