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Many of the defining advances in particle physics during the mid twentieth century were made at bubble chamber experiments. The particle physics group of the University of Birmingham have a rich history of involvement in bubble chamber experiments dating back to the 1950s. As part of this legacy, the group hold an extensive collection of photographic film recorded by experiments at the CERN 2 m Hydrogen Bubble Chamber (HBC), which operated between 1965 and 1976. These photographic records of particle interactions in the chamber volume represented the primary raw data format of such experiments, from which particle trajectories and momenta were then reconstructed from careful measurements of the film. Remarkably, nearly 60 years since the chamber was commissioned, the basic technical information required to reconstruct particle interactions from measurements of 2 m HBC film has been comprehensively preserved by CERN and is publicly available. This talk will describe an effort to digitally preserve this dataset, towards the establishment of a unique educational resource and the potential revival of its scientific exploitation.
The link to the project web page hosting the images: https://bubblechamber.web.cern.ch/