Visual record of neutrino trajectories, one of the most mysterious and ephemeral entities of elementary particle physics. Installation of a documentary series of photosensitive images based on archival records and photographic plates. The project was implemented in cooperation with the Fermi National Accelerator Laboratory (Fermilab) in the USA - a scientific institution famous for research on elementary particle physics and high-energy physics. Neutrino radiation illuminates the photographic negative with gamma radiation. The trace of the physical presence of a neutrino is a special record - due to the nature, speed and structure of the particles almost elusive. Photographic recording conducted over a period of several months is a material record of the ephemeral particles trajectories, also show their indexicality and entropic status - physical non-duration and materiality of radiation.