[3dem] [External] Re: plasma cleaner question

[Morgan, David Gene]

Ruben,

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...

Wish me luck :-)


--
    politics is more difficult than physics.
                                             A. Einstein

            David Gene Morgan
        Electron Microscopy Center
             047E Simon Hall
             IU Bloomington
          812 856 1457 (office)
          812 856 3221 (3200)
      https://urldefense.com/v3/__http://iubemcenter.indiana.edu__;!!Mih3wA!GJCQh8LhQbYpNmdmmM7TjqCfArVg7If8rVstOGrppxscYuk37Sy7QDmZinEp562bfjZSMFMslsgarQ9uw7i8Wmo$ 
________________________________
From: Ruben Diaz Avalos <rdiaz at lji.org>
Sent: Wednesday, February 14, 2024 10:22 PM
To: Morgan, David Gene <dagmorga at indiana.edu>
Cc: 3dem at ncmir.ucsd.edu <3dem at ncmir.ucsd.edu>
Subject: [External] Re: [3dem] plasma cleaner question


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Hi David,

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.

Ruben.


On Wed, Feb 14, 2024 at 12:48 PM Morgan, David Gene <dagmorga at indiana.edu<mailto:dagmorga at indiana.edu>> wrote:
Hi,

This is for any of you who have a plasma cleaner.  What have you done about venting the "exhaust gases" from the device?

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.

I am wondering how necessary people think it is to vent directly into some sort of building exhaust system.  Any thoughts?

As always, thanks in advance for your comments and ideas.

--
    politics is more difficult than physics.
                                             A. Einstein

            David Gene Morgan
        Electron Microscopy Center
             047E Simon Hall
             IU Bloomington
          812 856 1457 (office)
          812 856 3221 (3200)
      https://urldefense.com/v3/__http://iubemcenter.indiana.edu__;!!Mih3wA!GJCQh8LhQbYpNmdmmM7TjqCfArVg7If8rVstOGrppxscYuk37Sy7QDmZinEp562bfjZSMFMslsgarQ9uw7i8Wmo$ <https://urldefense.com/v3/__http://iubemcenter.indiana.edu__;!!Mih3wA!H1ezyicc3l9zqC84h5PenRpoYK2sNH9uBOXeEyt4bwThP5eeNk7_JR3tAVW05iBVg0yKt09vOIXBlbiajjOxOUA$>
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--
**********************************************
Ruben Diaz Avalos,
La Jolla Institute for Immunology,
9420 Athena Circle Dr.,
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(858)752-6960
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