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    <div class="moz-cite-prefix">Sample picture:
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      CF133 exhaust, ASA or something flange for inlet but I have a
      (crude) adapter to CF275 you can see in that picture.  Has a
      little rust at the bottom and some minor scratches on the flange
      surface but nothing major...I can lap them out if they become
      problematic.  I have a bottle of extra oil for it.  NPT water
      cooling ports.<br>
      <br>
      I've been warned against silver because it tarnishes easily.  I
      think trying a gold foil target would be pretty inexpensive and if
      it works may give better results.<br>
      <br>
      On 07/09/2013 11:59 PM, Jeff Miller wrote:<br>
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        <div><span>Oh BTW how big is that diff pump? Water cooled I bet?</span></div>
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          transparent; font-style: normal;"><span>I've been reading
            about how silver is a practical alternative to gold for
            sputtering specimens. Looks promising. <br>
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          times new roman,new york,times,serif; background-color:
          transparent; font-style: normal;"><span>-Jeff</span></div>
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              <hr size="1"> <font size="2" face="Arial"> <b><span
                    style="font-weight:bold;">From:</span></b> John
                McMaster <a class="moz-txt-link-rfc2396E" href="mailto:johndmcmaster@gmail.com"><johndmcmaster@gmail.com></a><br>
                <b><span style="font-weight: bold;">To:</span></b>
                <a class="moz-txt-link-abbreviated" href="mailto:sem@lists.noisebridge.net">sem@lists.noisebridge.net</a> <br>
                <b><span style="font-weight: bold;">Sent:</span></b>
                Tuesday, July 9, 2013 11:26 PM<br>
                <b><span style="font-weight: bold;">Subject:</span></b>
                Re: [Sem] Retaining the SEM and building a sputter
                coater<br>
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                  <div class="yiv717177975moz-cite-prefix">FWIW I am
                    converting my vacuum system from diffusion to turbo
                    pumped.  Assuming it works (they are really
                    expensive working so I had to piece it together from
                    eBay after doing a bunch of research) I may have a
                    Varian diffusion pump to donate to NB for SEM /
                    sputter system use.  I will try to play around with
                    coating on my setup in the near future.<br>
                    <br>
                    Let me know if there is interest for people to
                    discuss and plan things out.  I can usually only
                    meet on weekends though.<br>
                    <br>
                    On 07/09/2013 12:08 AM, Jeff Miller wrote:<br>
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                      style="color:#000;background-color:#fff;font-family:times
                      new roman, new york, times, serif;font-size:12pt;">Well
                      it's a bit of a catch-22. As long as there's
                      ongoing interest in the SEM and we can keep it and
                      the space free from decay, the SEM can stay. If
                      it's underutilized and falls into disrepair, it
                      should go somewhere it might be better
                      appreciated.<br>
                      <br>
                      I haven't seen the space lately but it sounds
                      finished enough.<br>
                      <br>
                      I think we should put the priority on building a
                      sputter coater. It should be fairly simple to do.
                      I've seen some pretty poor designs on YouTube that
                      still sort of work. I think we could build a
                      pretty nice one over 2 or 3 months of weekends,
                      tops.<br>
                      <br>
                      Probably <$100 in parts that we can't scrounge
                      or make for something quite nice.<br>
                      <br>
                      I'll be looking at commercial designs this week
                      and try to come up with some plans this week and
                      next.<br>
                      <br>
                      -Jeff<br>
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