Project

General

Profile

Leginon Operation for JEM scopes » History » Version 2

Anchi Cheng, 07/08/2015 06:17 AM

1 1 Anchi Cheng
h1. Leginon Operation for JEM scopes
2
3
The Use of JEM scopes with Leginon is still under development but here are some modification specific to them that we use.
4
5
h2. "image beam shift" on JEOL scopes is equivalent to  "image shift" applied by the users on FEI instrument
6
7
Such movement should move feature in the view without induced movement of the beam.
8
9
h2. Some model has such a slower relax time in image shift in LOWMAG range that it is necessary not to access it in target adjustment.
10
11
An additional targeting/imaging step is added so that queued up exposure targets will not be adjusted using sq preset.
12 2 Anchi Cheng
Alternatively, custom lens program can be created to replace an unused MAG1 magnification that minimize the objective lens current change.  See [[JEOL installation specifics]]