General acquisition covering materials science and other use cases. For specialized techniques, use the appropriate subclass (AcquisitionSpa for single particle, or tomography subclasses).
Number of frames that on average constitute a full movie, can be a bit hard to define for some detectors
Movement of the Beam below the image in order to shift the image on the detector. Given in µm.
Number of images generated total for this data collection - might need a qualifier for tilt series to determine whether full series or individual tilts are counted
Whether an energy filter was used and its specifics.
Target defocus set, min and max values in nm.
Average dose per image/movie/tilt - given in electrons per square Angstrom
Specifies which Acquisition subschema/class is in use.
The total electron beam current hitting the viewing screen, in nA.
Magnification level as indicated by the instrument, no unit
The size of the image in pixels, height and width given.
Cryogen used in cooling the instrument and sample, usually nitrogen
Temperature during data collection, in K with min and max values.
Another way to move the beam above the sample for data collection purposes that does not require movement of the stage. Given in mrad.
Type of cryogen used in the holder - if the holder is cooled seperately
Machine estimated defocus, min and max values in µm. Has a tendency to be off.
Whether and how you have to flip or rotate the gainref in order to align with your acquired images
Movement of the beam above the sample for data collection purposes that does not require movement of the stage. Given in mrad.
Number of Beamtilt groups present in this dataset - for optimized processing split dataset into groups of same tilt angle. Despite its name Beamshift is often used to achive this result.
Any type of special optics, such as a phaseplate
Number of grids imaged for this project - here with qualifier during this data acquisition
Time of data acquisition per movie/tilt - in s
Level of binning on the images applied during data collection
List of custom descriptors for user-defined key-value pairs describing how micrographs were obtained or any related information
A series of numbers constructed from min, max, and increment
Maximal value of a given dataset property
Minimal value of a given dataset property
The min, max and increment of the tilt angle in a tomography session. Unit is degree.
The tilt axis angle of a tomography series
if a value has a unit, it should be given as a unit value pair.
Special device used to correct instrument inherent chromatic aberration.
Details of a given specialist instrument
whether a specific instrument was used during data acquisition
Used to modulate the phase of the electron wave.
Special device used to correct instrument inherent spherical aberration.
Any type, used as the base for type-narrowing.
Collection angle set, min and max values in mrad.
Mode of the detector, e.g. "counting", "ScanningDetector", "ImagingDetector", etc.
Dispersion of an analytical detector, in eV
A device used to filter for electrons with specific energy.
Optional optics used to correct for instrument limitations.
Specialist device to correct for spherical aberration of the microscope lenses
Specialist device to correct for chromatic aberration of the microscope lenses
Phaseplate is a special optics device that can be used to enhance contrast
The width of a given item - unit depends on item
The height of a given item - unit depends on item
an axis-aligned 2D bounding box (float units)
unit value extended to have two additional fields si_value and si_unit
value of a given field in respect to its SI unit