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. 2022 Aug 23;11:e80047. doi: 10.7554/eLife.80047

Appendix 1—table 1. Input parameters for a SmartScope session.

Parameter names and their description. This is presented as a form on the web interface. These parameters can also be updated during the imaging process.

Parameter name Description
General session parameters
Session name Name of the microscopy session
Group Group name of the microscopy session. Usually the principal investigator’s name
Microscope Microscope being used for the session
Detector Detector being used for the session
Collection parameters
Atlas X Number of tiles for the Atlas acquisition in X axis (default: 3)
Atlas Y Number of tiles for the Atlas acquisition in Y axis (default: 3)
Square X Number of tiles for the window acquisition in X axis (default: 1)
Square Y Number of tiles for the window acquisition in the Y axis (default: 1)
Squares num Number of windows to be selected for high-magnification imaging (default: 3)
Holes per square Number of targets per windows to be selected for higher-magnification imaging. If 0 is entered, all targets will be selected and data collection mode will be enabled (default: 3)
BIS max distance Beam-Image shift grouping radius in microns (default: 0)
Min BIS group size Smallest Beam-Image shift group size to be considered (default: 1)
Target defocus min Lower end of the defocus range for rolling defocus in microns (default: –2)
Target defocus max Higher end of the defocus range for rolling defocus in microns (default: –2)
Defocus step Step by which the defocus is varied between each target group (default: 0)
Drift crit Drift threshold to be met during the drift settling procedure before proceeding with high-magnification imaging. Use –1 to disable (default: –1)
Tilt angle Tilt angle to use for high-magnification imaging. Works with BIS enabled (default: 0)
Save frames Whether to save the movie frames or return aligned sum (default: Saving enabled)
Zeroloss delay Time delay in hours for zero loss peak refinement. Only useful if the microscope has an energy filter. Use –1 to deactivate (default: –1)
Offset targeting Enable random targeting off-center to sample the ice gradient and carbon mesh particles. Automatically disabled in data collection mode (default: enabled)
Offset distance Override the random offset by an absolute value in microns. Can be used in data collection mode. Use –1 to disable (default: disabled)
Autoloader (1 per grid)
Name Name of the grid
Position Position in the autoloader
Hole type Grid hole spacing type (i.e. R1.2/1.3)
Mesh size Grid mesh size and spacing (i.e. 300)
Mesh material Grid mesh material (i.e. carbon or gold)