[3dem] Talos Arctica illumination question

[Morgan, David Gene]

Hi,

We recently added a Gatan Biocontinuum energy filter to our Arctica and have run into a series of issues (both related and un-related) since then.  A big question at the moment is the illumination - the beam seems dimmer than it should be, even though the FEG passes the ThermoFisher "standard tests" for performance.

I'd like to collect from the community some data on "typical" illumination conditions (gun lens, spot size, dose rate) that people are using with various cameras on their Arcticas.  We have a Ceta and a Falcon3 just below the FluCam, and then a K3 at the end of the GIF.

Thanks for your input, and you can contact me directly if you want.

--

NOTE:  my email has changed to dagmorga at iu.edu.
             Email to dagmorga at indiana.edu will stop being
             forwarded later this year.

    politics is more difficult than physics.
                                             A. Einstein

            David Gene Morgan
        Electron Microscopy Center
             047E Simon Hall
             IU Bloomington
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