About: http://webisa.webdatacommons.org/368680876

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	At least one radioactive source emitting at least two types of radiation is used with two detectors to measure properties of a material which are related to radiation attenuation by that material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com