CERN Accelerating science

Welcome to the Radiation Protection Informative Page.

Information about RP training courses can be found at the end of the CMS Training and Access Requirements page.

• Courses for accessing the Supervised and Controlled Radiation Areas
• For Work Supervisors, we recommend the DIMR/WDP course on LMS (around 10 min. online)

Information about facilities for radiation testing at CERN, in the EU, and worldwide can be found on the Irradiation Facilities website.

Please refer to the CERN Dosimetry Service Webpage to obtain information on:

• How to obtain/use/read/return/exchange a dosimeter
• Dosimetry results
• Contact and opening hours
• List of FAQ

Active dosimeters are available in the poll in the CMS Control Room (SCX5).

Please refer to the CERN Operational RP Webpages to obtain information on:

• The SPS, LHC, and Prevessin facilities 
• The PS, CTF, and Meyrin facilities on 

For destructive work, please prepare your activity in IMPACT and inform CMS Safety/TC via TC meetings as much as possible in advance.

All materials for future use as storage, transport, and shipping of waste have to be labeled and registered in the TREC system for proceeding further with RP measurement and control.

Please refer to the Radioactive Waste Management Webpage to obtain information on:

• Declaration and disposal of radioactive waste
• Sort your radioactive waste correctly
• Contact

Respect the sorting of Radioactive and Conventional waste put in place in the UXC55 experiment cavern.  

Please refer to the Radioactive Shipping Service Webpage to obtain information on:

• Organizing shipping of all radioactive material from CERN to other institutes or external organizations
• Reception by the Logistic Service of all radioactive materials that arrive on CERN’s sites from external institutes
• Contact

Please refer to the CERN Radioactive Sources Service Webpage to obtain information on:

• The loan of a radioactive source, from its request upon its return
• Operational procedure for its use
• Transport requirements and authorization
• Contact