The FAZIA particle detector has been in operation since 2015.
Notes on verification
Multiple sources confirm FAZIA experimental campaigns began around 2015 at LNS and GANIL, but no single authoritative source explicitly states an exact 'operational since 2015' date.
Sources
- Highly accurate measurement of symmetry energy in nickel isotopes advances nuclear models | CNRS Nucléaire & Particules (in2p3.cnrs.fr)
- https://fazia.in2p3.fr/ (fazia.in2p3.fr)
- https://www.sciencedirect.com/science/article/pii/S0168900219315703 (sciencedirect.com)