About: http://webisa.webdatacommons.org/31361263

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	3) A virtual radiation source is placed at a position, for example as shown in FIG. 26.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com