# OnCo record protom (company). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/companies/protom/>
  a schema:Organization ;
  onco:kind "company" ;
  schema:identifier "protom" ;
  schema:name "ProTom International"@en ;
  schema:description "ProTom International makes the Radiance 330, a compact synchrotron-based proton therapy system installed at Massachusetts General Hospital and McLaren in Michigan."@en ;
  schema:url <https://onco.cc/companies/protom/>, <https://www.protominternational.com> ;
  schema:dateModified "2026-09-17"^^xsd:date ;
  schema:citation <https://www.protominternational.com>, <https://www.ptcog.site/index.php/facilities-in-operation-public> ;
  onco:tag "machines-wave" ;
  schema:addressCountry "US" ;
  onco:sections <https://onco.cc/fronts/radiation/>, <https://onco.cc/fronts/devices/> ;
  onco:technologies <https://onco.cc/technologies/proton-therapy-systems/>, <https://onco.cc/technologies/proton-therapy/> ;
  onco:institutions <https://onco.cc/institutions/mgh/> .