Assertion: krypton | /r/UsedFor | lower operating temperatures
Facets:
value: for the lamp
type: PURPOSE
Source sentences:
text: Krypton is a gas at room temperature, allowing for easier isotopic enrichment and lower operating temperatures for the lamp (which reduces broadening of the line due to the Doppler effect), and so it was decided to select the orange line of krypton-86 (λ