The INDRA particle detector was designed in the 1990s.

Science20th centuryFrancehigh confidence

Notes on verification

Confirmed by GANIL's own technical documentation and peer-reviewed nuclear physics literature; design and commissioning timeline (late 1980s-1993) is well-documented and consistent across sources.

Sources

Highly accurate measurement of symmetry energy in nickel isotopes advances nuclear models | CNRS Nucléaire & Particules (in2p3.cnrs.fr)
https://www.ganil-spiral2.eu/scientists/ganil-spiral-2-facilities/experimental-halls/indra/ (ganil-spiral2.eu)
https://hal.science/hal-01766700 (hal.science)

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