Air activation analysis of radiological data acquired during LHC Run 2

The Large Hadron Collider (LHC) is a particle accelerator, where two high-energetic particle beams accelerate close to the speed of light and brought to a collision. During the operation of the LHC, radioactive air production occurs due to the interaction of secondary particles with air molecules [1]. Activated air can lead to exposure of two groups of people: personnel and members of the public [2], [3]. The limitations for the latter group of the annual effective dose should not exceed 1 mSv/yr (§ 22 1 StSV) where CERN can provide a maximum of 0.3 mSv/yr [2]. For personnel, the external exposure is well monitored through REMUS (Radiation and Environment Monitoring Unified Supervision) [4], but internal exposure is not directly monitored. The issue of internal exposure hazards is getting inside the body through inhalation, ingestion, or the skin. Internal radiation is more dangerous. It damages the cells, tissues, and organs since no shielding can be found inside the body, its protection is complicated. Depending on the particle, effects can be very hazardous (α-particles).