PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY PHILIPPE PLAILLY / SCIENCE PHOTO LIBRARY
One of the "end caps" of the ALEPH detector at CERN, the European centre for particle physics near Geneva. ALEPH is one of 4 giant particle detectors at the LEP collider. LEP collides electrons & positrons accelerated to an energy of 50 GeV in a circular tunnel 100m underground & 27km in circumference. ALEPH is a cylindrical assembly of many types of apparatus - hadron and electromagnetic calorimeters, drift chambers, a time projection chamber - which fit together like layers of an onion around the point where the particles collide. The end caps are 3 stories tall and fit on each end of ALEPH's central cylinder.
Model release not required. Property release not required.