# OnCo record linear-accelerator-quality-assurance (protocol). 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/protocols/linear-accelerator-quality-assurance/>
  a schema:MedicalGuideline ;
  onco:kind "protocol" ;
  schema:identifier "linear-accelerator-quality-assurance" ;
  schema:name "Linear accelerator quality assurance: daily, weekly, monthly and annual machine checks"@en ;
  schema:alternateName "linac QA"@en, "linac quality control"@en, "machine QA"@en, "morning QA"@en, "daily output check"@en, "TG-142"@en, "MPPG 8.b"@en, "IPEM Report 81"@en, "Winston-Lutz test"@en, "picket fence test"@en ;
  schema:description "Before patients are treated each day, the radiotherapy team checks that the treatment machine gives the right dose, points at the right place and stops when it should. Bigger checks follow every week, month and year, and after every repair. These checks are why a machine fault very rarely reaches a patient."@en ;
  schema:url <https://onco.cc/protocols/linear-accelerator-quality-assurance/> ;
  schema:dateModified "2026-11-11"^^xsd:date ;
  onco:related <https://onco.cc/protocols/radiotherapy-patient-identification-and-time-out/> ;
  onco:technologies <https://onco.cc/technologies/c-arm-linac/>, <https://onco.cc/technologies/radiotherapy-qa-phantoms-dosimeters/>, <https://onco.cc/technologies/imrt-igrt/> .