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Ricochet

Search for the Coherent Elastic Nuclear Scattering of Neutrinos from a reactor

The germanium bolometers of the RICOCHET experiment in their cryocube. Credits : S.Monfront/ILL

Photo taken during the final assembly of RUN016, marking the start of Ricochet's science phase at ILL. It shows a student from Toronto (Elspeth Cudmore) finalizing the installation of the fiber optic calibration system for the CryoCube detectors, which correspond to 18 germanium detectors, divided into two levels of 9, and positioned under the internal shielding of 150 kg of lead, polyethylene, and copper. Once operational, the entire system will be vacuum-sealed and cooled to 10 mK and 1 K for the CryoCube and internal shielding, respectively. Credit: S. Monfront - ILL

Picture taken on 7 July 2025 - Shielding set up

Reference

Photo gallery

  1. The germanium bolometers of the RICOCHET experiment in their cryocube. 
  2. Photo taken during the final assembly of RUN016, marking the start of Ricochet's science phase at ILL. It shows a student from Toronto (Elspeth Cudmore) finalizing the installation of the fiber optic calibration system for the CryoCube detectors, which correspond to 18 germanium detectors, divided into two levels of 9, and positioned under the internal shielding of 150 kg of lead, polyethylene, and copper. Once operational, the entire system will be vacuum-sealed and cooled to 10 mK and 1 K for the CryoCube and internal shielding, respectively.
  3. Picture taken on 8 July 2025 as the copper shielding is being installed.
  4. Schematic of the RICOCHET installation in the H7 experimental area:
    1) cryostat with shielding, electronics and double frame,
    2) supply and primary vacuum lines
    3) data readout lines,
    4) technical cabin for cryostat infrastructure and data acquisition servers,
    5) control cabin,
    6) pulsed neutron source (storage position),
    7) rail system,
    8) local 1-t crane,
    9) retention walls, 10) light RICOCHET casemate,
    11) limit of reactor transfer channel. The muon veto (not shown) is located above and around the cryostat and shielding.