GBZ 121-2020 Radiation Therapy Radiation Protection Requirements

Standard No.: GBZ 121-2020
Language: Chinese
Release Date: 2020
Published By: Occupational Health Standard of the People's Republic of China
Replace By: GBZ 121-2017; GBZ 126-2011; GBZ 131-2017; GBZ 161-2004; GBZ 168-2005; GBZ 179-2006; GBZ/T 257-2014
Lastest: GBZ 121-2017; GBZ 126-2011; GBZ 131-2017; GBZ 161-2004; GBZ 168-2005; GBZ 179-2006; GBZ/T 257-2014

Scope: This standard specifies the radiation protection requirements for radiotherapy. This standard applies to the use of medical electron accelerators, cobalt-60 therapy machines, neutron radiation sources and gamma radiation source afterloading therapy machines, X-ray and gamma-ray stereotactic radiotherapy systems, helical tomotherapy systems, and intraoperative radiotherapy Protection requirements for radiotherapy carried out by mobile electron accelerators, medical X-ray therapy machines, low-energy X-ray radiotherapy equipment, and proton heavy ion accelerators. This standard does not apply to radiation protection for radioactive seed implantation and radionuclide application therapy.

GB 18871 Basic standards for protection against ionizing radiation and for the safety of radiation sources
GBZ 128 Specifications for personal monitoring of occupational external exposure
GBZ 235 Specifications for occupational health surveillance for radiation workers

2020 GBZ 121-2020 Radiation Therapy Radiation Protection Requirements
2017 GBZ 121-2017 Radiation protection requirements for afterloading gamma source brachytherapy
2002 GBZ 121-2002 Hygienic protection standard for after-loaded gamma source brachytherapy

GBZ 121-2020 was changed to GBZ 131-2017 Radiation protection requirements for medical X-ray therapy.

GBZ 121-2020 was changed to GBZ 161-2004 Radiological protection and safety standards for medical Gamma-beam teletherapy.

GBZ 121-2020 was changed to GBZ/T 257-2014 Radiological protection requirements of mobile electron accelerator for intraoperative radiotherapy.

GBZ 121-2020Radiation Therapy Radiation Protection Requirements