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Feature #5815

closed

auto coma correction in beam tilt imager

Added by Anchi Cheng almost 6 years ago. Updated about 5 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Anchi Cheng
Category:
-
Target version:
Appion - Appion/Leginon 3.4
Start date:
05/19/2018
Due date:
% Done:

0%

Estimated time:
Deliverable:

Description

Requires aberration estimation and correction

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 #1

Updated by Anchi Cheng almost 6 years ago

Tested. Converge slowly. Need optimization.

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 #2

Updated by Anchi Cheng about 5 years ago

  • Status changed from Assigned to Closed
  • Assignee set to Anchi Cheng

This uses gctf executable linked as gctfCurrent. It does a simple round of ctf estimation of each power spectrum in Zemlin Tableau. Correct the result and then acquire again and estimate again. Choose when you want it to stop by adjusting the convergence C21 value and when to give up with iteration count limit.

It fails if gctf fails to estimate.

Turn it on in the settings of BeamTilt Image node and start with simulated target as usual. It is advisable to save your starting beam tilt in case it takes you to the wrong direction.

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