
# Slot: beam_convergence

Refers to how tightly or widely the electron beam is focused onto the sample, in mrad. Typically low convergence for TEM and high for STEM.

URI: [https://w3id.org/osc-em/oscem-schemas-subtomo/beam_convergence](https://w3id.org/osc-em/oscem-schemas-subtomo/beam_convergence)


## Domain and Range

None &#8594;  <sub>0..1</sub> [QuantitySI](QuantitySI.md)

## Parents


## Children

 *  [Instrument➞beam_convergence](Instrument_beam_convergence.md)

## Used by

