[Sneap] tungsten mesh sought for gridded einzel

[Kim Gunther]

If you can use Molybdenum, we have many sizes in stock.  Otherwise we
could provide Tungsten by the sheet, or cut and formed.  Tungsten would
take 4-5 weeks. 
 
Best regards,
 
Kim Gunther
HeatWave Labs
gunther at cathode.com
831-722-9081
fx 831-722-5491
 

-----Original Message-----
From: sneap-bounces at tunl.duke.edu [mailto:sneap-bounces at tunl.duke.edu]
On Behalf Of Albert Zondervan
Sent: Wednesday, October 31, 2007 3:58 PM
To: Sneap at tunl.duke.edu
Subject: [Sneap] tungsten mesh sought for gridded einzel

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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