We offer to your attention a preprint “Refinement of optical constants for bubble chambers” P10-2023-19 issued by the JINR Publishing Department. The authors are Alexander Belyaev (VBLHEP JINR), Victor Rikhvitsky (MLIT JINR).

At JINR, at the new software and hardware complex, the film information processing (FIP) for bubble chambers (1-meter hydrogen and 2-meter propane) was restored, which was obtained in the measurement sessions of the 60–90s of the 20th century at JINR. During the restoration, inaccuracies were found in the spatial reconstruction of the points. A minimization algorithm has been found that refines the “optical constants” of photographic lenses and their location in the common Cartesian coordinate system of cameras.

The study has been carried out at the Veksler and Baldin Laboratory of High Energy Physics JINR.

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