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See Chinese contents: YY/T 1537-2017 YY/T 1537-2017: Laser positioning system in radiation therapy—Functional-performance characteristics and test methods
This Standard specifies functional-performance characteristics and test methods for laser positioning system in radiation therapy. This Standard is applicable to the matched external laser positioning systems used in different types of radiation therapy and positioning equipment (such as cobalt-60 teletherapy machine, medical electron accelerator, radiation therapy simulator, radiation therapy CT simulator, radiation therapy MRI simulator, etc.), which are used to project a positional reference mark on the patient skin, the patient fixing device, the stereotactic frame, and other registration devices, to position the patient during radiation therapy.
