THE TOTEM ON-LINE RADIATION MONITORING SYSTEM

The TOTEM detectors together with their related readout electronics are located in LHC and CMS areas where high radiation levels are expected. The Ionizing Dose and the particle Fluence are thus monitored during TOTEM operation and made available on-line through the Detector Control System. A total of 36 sensors are installed in TOTEM. The one located in the Roman Pot stations, along the LHC tunnel, sit more than 300m far from their readout electronics. This characteristic makes the system described in this paper unique with respect to the one of the other LHC experiments.