Speaker
Description
The ATLAS Forward Proton (AFP) sub-detector, located in the forward region of the ATLAS experiment, between ~205m and 218m from ATLAS Interaction Point 1 (IP1) and in close proximity of the TCL6 aperture defining collimator (~219m) within the Large Hadron Collider (LHC), has faced significant operational challenges during Run-3 pp-collisions at √s = 13.6 TeV due to elevated and increasing radiation exposure as integrated luminosity grows.
This contribution presents the impact of this environment on AFP detector components, as well as on personnel performing maintenance and component replacement during short accesses. Radiation-induced effects such as increased leakage current, detector resolution and efficiency degradation, single-event upsets and failures in power supplies and front-end electronics have been studied using monitoring data and simulation. The high dose rates also constrain hands-on intervention times and require careful planning to keep individual and collective doses within regulatory limits.
Possible mitigation strategies will be discussed, including adjustments to collimator settings, optimized shielding for electronics and personnel, relocation or consolidation of equipment, and the use of more radiation-tolerant components for future operation. The experience with AFP underlines the need for a comprehensive radiation impact assessment when designing and locating forward detectors in high-radiation environments.
| Minioral | Yes |
|---|---|
| IEEE Member | No |
| Are you a student? | No |