<div dir="ltr">Hi David,<div><br></div><div>This might be your solution story.</div><div><br></div><div>During plasma cleaning, the pump is on. Meaning that the plasma is being sucked-up by the pump.</div><div>Since the pump is equipped with a small filter, there is no plasma released by the glow-discharger.</div><div>And you might also want to tell your colleague that venting goes the other way around, that is air from the room that goes inside the glow-discharger, not the opposite.</div><div><br></div><div>Cheers,</div><div>Sylvain</div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><p style="color:rgb(34,34,34);margin-bottom:0px"><span style="color:rgb(80,80,80);font-family:sans-serif">PhD</span><br>Research Fellow - Microscopy Australia</p><p style="color:rgb(34,34,34);margin-bottom:0px"><b>Monash University</b><br></p><span style="color:rgb(34,34,34)">Ramaciotti Centre for Cryo-EM</span><br style="color:rgb(34,34,34)"><span style="color:rgb(34,34,34)">G</span><span style="color:rgb(34,34,34)">92, 15 Innovation Walk, Clayton Campus</span><br style="color:rgb(34,34,34)"><span style="color:rgb(34,34,34)">Victoria, 3800 Australia</span><p style="color:rgb(80,80,80);font-family:sans-serif;margin-bottom:0px">E: <a href="mailto:sylvain.trepout@monash.edu" style="color:rgb(17,85,204)" target="_blank">sylvain.trepout@monash.edu</a></p></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 15 Feb 2024 at 14:37, Morgan, David Gene <<a href="mailto:dagmorga@indiana.edu">dagmorga@indiana.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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Ruben,</div>
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That's my thought also, but one of the staff members seems to think that it will vent "plasma" into the lab. I've tried to convince her that's not a thing and that what does get vented isn't a problem, but to no avail. So I was hoping to show her that I'm
not the only person who believes this...</div>
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Wish me luck :-)<br>
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David Gene Morgan<br>
Electron Microscopy Center<br>
047E Simon Hall<br>
IU Bloomington<br>
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812 856 3221 (3200)<br>
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<div id="m_-3043114339158724852divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Ruben Diaz Avalos <<a href="mailto:rdiaz@lji.org" target="_blank">rdiaz@lji.org</a>><br>
<b>Sent:</b> Wednesday, February 14, 2024 10:22 PM<br>
<b>To:</b> Morgan, David Gene <<a href="mailto:dagmorga@indiana.edu" target="_blank">dagmorga@indiana.edu</a>><br>
<b>Cc:</b> <a href="mailto:3dem@ncmir.ucsd.edu" target="_blank">3dem@ncmir.ucsd.edu</a> <<a href="mailto:3dem@ncmir.ucsd.edu" target="_blank">3dem@ncmir.ucsd.edu</a>><br>
<b>Subject:</b> [External] Re: [3dem] plasma cleaner question</font>
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<div style="font-family:garamond,"times new roman",serif">Hi David,</div>
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<div style="font-family:garamond,"times new roman",serif">We have also a Fischione plasma cleaner, to which we have connected a Nitrogen and an Argon tank. The instrument vents to the lab and EH & S has no problem with that. I don't think
the process of plasma cleaning would produce any noxious gases anyway.</div>
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<div style="font-family:garamond,"times new roman",serif">Ruben.</div>
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<div dir="ltr">On Wed, Feb 14, 2024 at 12:48 PM Morgan, David Gene <<a href="mailto:dagmorga@indiana.edu" target="_blank">dagmorga@indiana.edu</a>> wrote:<br>
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Hi,</div>
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This is for any of you who have a plasma cleaner. What have you done about venting the "exhaust gases" from the device? </div>
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We are moving our Fischione plasma cleaner into a new area sample prep area. In the old location, we were able to connect the exit port of the cleaner directly into the exhaust snorkel where a fume hood was once connected. In our new location, that will either
be impossible or will require a connection that spans many meters and passes through multiple walls. </div>
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I am wondering how necessary people think it is to vent directly into some sort of building exhaust system. Any thoughts?</div>
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As always, thanks in advance for your comments and ideas.<br>
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<div style="margin:0px;font-family:Calibri,Arial,Helvetica,sans-serif"><span style="font-size:12pt;color:rgb(0,0,0)"> politics is more difficult than physics.</span></div>
<div style="margin:0px;font-family:Calibri,Arial,Helvetica,sans-serif"><span style="font-size:12pt;color:rgb(0,0,0)"> A. Einstein</span></div>
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<div style="margin:0px;font-family:Calibri,Arial,Helvetica,sans-serif"><span style="font-size:12pt;color:rgb(0,0,0)"> David Gene Morgan<br>
Electron Microscopy Center<br>
047E Simon Hall<br>
IU Bloomington<br>
812 856 1457 (office)<br>
812 856 3221 (3200)<br>
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