LHC radiation levels
The equipment using nanoFIP in the LHC is
1. FGClite
FGClite devices are installed in Tunnel ARC MB locations.
- The estimated TID levels [1] are
- [2016-2018]: 0.4 Gy/y
- [2020-2022]: 0.8 Gy/y
- [2025-2035]: 3.2 Gy/y
As the TID tolerance of nanoFIP is ~400 Gy [2], we are expecting to experience no TID failures between 2016 and the end of life of the LHC.
- The estimated HEH levels [1] are
- [2016-2018]: 5e8 /cm2/y; as the nanoFIP cross section is <1e-13cm2 [2], for the FGClite system with ~1000 nanoFIP devices we are expecting 1 SEU/y
- [2020-2022]: 1e9 /cm2/y; as the nanoFIP cross section is <1e-13cm2 [2], for the FGClite system with ~1000 nanoFIP devices we are expecting 1 SEU/y
- [2025-2035]: 4e9 /cm2/y; as the nanoFIP cross section is <1e-13cm2 [2], for the FGClite system with ~1000 nanoFIP devices we are expecting 1 SEU/y
2. radMon
radMon devices are installed in the Tunnel ARC and in the Tunnel DS
areas.
- In the worst Tunnel ARC areas, the estimated TID levels
[1] are
- [2016-2018]: 1 Gy/y
- [2020-2022]: 2 Gy/y
- [2025-2030]: 4 Gy/y
- [2031-2035]: 8 Gy/y
As the TID tolerance of nanoFIP is ~400 Gy [2], we are expecting to experience no TID failures on the nanoFIPs installed in the worst Tunnel ARC areas between 2016 and the end of life of the LHC.
- In the worst Tunnel DS areas, the estimated TID levels [1]
are
- [2016-2018]: 20 Gy/y
- [2020-2022]: 40 Gy/y
- [2025-2030]: 80 Gy/y
- [2031-2035]: 160 Gy/y
As the TID tolerance of nanoFIP is ~400 Gy [2], the few nanoFIPs installed in the worst DS areas should be replaced around 2026, 2030 and 2032.
- In the worst Tunnel DS areas the estimated HEH levels [1]
are
- [2016-2018]: 2e9 /cm2/y; as the nanoFIP cross section is <1e-13cm2 [2], for the radMon system with ~100 nanoFIP devices in the Tunnel DS, we are expecting 1 SEU/y
- [2020-2022]: 4e9 /cm2/y; as the nanoFIP cross section is <1e-13cm2 [2], for the radMon system with ~100 nanoFIP devices in the Tunnel DS, we are expecting 1 SEU/y
- [2025-2035]: 8e10 /cm2/y; as the nanoFIP cross section is <1e-13cm2 [2], for the radMon system with ~100 nanoFIP devices in the Tunnel DS, we are expecting 1 SEU/y
[1] LHC estimated radiation
levels
[2] nanoFIP radiation
tests