Assertion: entire experiment | /r/HasProperty | cooled below 4.2 kelvin
Facets:
value: to minimize thermal noise
type: PURPOSE
value: with a liquid helium refrigerator
type: OTHER
Source sentences:
text: The expected signal from axion decay is so small that the entire experiment is cooled to well below 4.2 kelvin with a liquid helium refrigerator to minimize thermal noise.