PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As used in this specification, the term ???radiation source??? refers to an emission point/region of a radiation beam (e.g., radiation beam 42), and may or may not include components, such as a particle generator, an accelerator, a cooling system, a shielding, etc., that are used to generate the radiation beam 42.
http://www.w3.org/ns/prov#wasQuotedFrom
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