[3dem] FFT question

Garry P Morgan Garry.Morgan at Colorado.EDU
Fri Dec 29 11:23:54 PST 2017


Hi,
we’re getting consistently clipped FFT’s on our TF30…the attached image is from a 50-frame, summed/aligned image of the carbon (of a cryo-grid). the drift numbers are reasonably low, there is no astigmatism.  just wondering if any of you can provide a possible explanation of this?  it definitely looks like drift or some sort of movement, right?  we have 2 Gatan 626 holders, and it seems to only be happening with one of the holders…has anyone encountered a problem like this associated with a holder?
thanks,
Garry

[unknown.jpg]
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.ncmir.ucsd.edu/pipermail/3dem/attachments/20171229/de8d3c3f/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: unknown.jpeg
Type: image/jpeg
Size: 575837 bytes
Desc: unknown.jpeg
URL: <http://mail.ncmir.ucsd.edu/pipermail/3dem/attachments/20171229/de8d3c3f/attachment-0001.jpeg>


More information about the 3dem mailing list