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RP Mandate

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Radiatation Protection Group (DGS-RP)


The Radiation Protection Group (DGS-RP) of the HSE Unit ensures that personnel on the CERN sites and the public are protected from potentially harmful effects of ionising radiation linked to CERN activities. The DGS-RP Group fulfils its mandate in collaboration with the CERN departments owning or operating sources of ionising radiation and having the responsibility for Radiation Safety [1] of these sources.

The Radiation Protection Group:

  • assesses the hazards of ionising radiation and radioactivity from existing and future CERN installations and their associated risks for personnel and members of the public;
  • defines protective measures against radiation hazards based on the justification and optimisation (ALARA) principle;
  • monitors the implementation and the effectiveness of the protective measures;
  • authorises (suspends) the operation of an equipment, installation or activity generating ionising radiation in case of compliance (non-compliance) with CERN’s radiation protection rules;
  • develops and maintains tools, instruments and methods appropriate for the assessment of radiation hazards and risks particular to the CERN installations;
  • provides expert advice and technical support to departments and to the CERN management in all matters of radiation protection;
  • manages the conditioning, interim storage and elimination of radioactive waste;
  • is in charge of the Organisation's regulatory framework in matters of radiation protection;
  • collaborates with CERN’s Medical Service.

The Radiation Protection Group specifies, installs and operates on behalf of CERN:

  • the radiation monitoring systems for ambient dosimetry;
  • the spectrometry laboratories for operational radiation protection and radioactive waste management;
  • the personal dosimetry service to monitor individual doses of radiation workers;
  • the calibration service for radiation protection instruments to ensure the metrological traceability of measurements;
  • the pre-conditioning facility for radioactive waste and interim storage facility for radioactive waste.

[1] For the definition of the terms “Radiation Safety” and “Radiation Protection”, refer to “Definitions

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