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Bug #7076

closed

Unstable beam position when preset change involves spot size change on Talos column

Added by Anchi Cheng about 6 years ago. Updated over 4 years ago.

Status:
Closed
Priority:
High
Assignee:
Anchi Cheng
Category:
-
Target version:
Appion/Leginon 3.5
Start date:
03/24/2019
Due date:
% Done:

0%

Estimated time:
Affected Version:
Appion/Leginon 3.3
Show in known bugs:
No
Workaround:

Description

The root cause of it are three folds:

1. TUI lens normalization is used on Talos column instead of preset cycling.

1. TUI normalization settings allows only and default to normalize spotsize and intensity. However, spot size change moves beam position and camera. It requires normalization of minicondenser to be consistent with the position aligned through the alignment procedure of spot-dependent gun shift.

2. Leginon send spot size after magnification change, but we only added additional normalization in magnification step.

#1

Updated by Anchi Cheng about 6 years ago

  • Subject changed from TFS Talos series beam is not stable when preset change involves spot size change to Unstable beam position when preset change involves spot size change on Talos column
#4

Updated by Anchi Cheng over 4 years ago

  • Status changed from Assigned to Closed
  • Target version changed from Appion/Leginon 3.4 to Appion/Leginon 3.5
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