Assertion: cesium | /r/ObjectUse | used as getter
Facets:
value: in vacuum tubes
type: LOCATION
value: sometimes
type: TEMPORAL
value: due to its high affinity for oxygen
type: CAUSE
value: in vacuum systems
type: LOCATION
Source sentences:
text: Cesium readily combines with oxygen and is used as a getter, a material that combines with and removes trace gases from vacuum tubes.
text: Like other alkali metals, caesium has a great affinity for oxygen and is used as a "getter" in vacuum tubes.
text: In addition to being a pyrotechnic IR emitter and radiotherapy agent, Cesium is used as a getter in vacuum systems due to its high affinity for oxygen.
text: Sometimes cesium is used as a getter for residual gas impurities in vacuum tubes and as a coating in tungsten filaments or cathodes of the tubes.
text: Like other elements of group 1, caesium has a great affinity for oxygen and is used as a "getter" in vacuum tubes.