ZEUS (particle detector)

[3] The German national laboratory DESY was founded in 1959 and started operating its first particle accelerator in 1964.

Since May 2012, the former ZEUS detector hall has been used as a lab space for the international European XFEL project.

[8] The purpose of the ZEUS detector was to collect data to allow the reconstruction of physics events in a consistent way so they can be analyzed.

[9] In the ZEUS calorimeter neutral pions interacted with uranium atoms to produce slow-moving neutrons which were captured by the scintillator and increased the hadronic signal.

Another advantage of using uranium as the absorber was that the natural radioactivity allowed the calorimeter's sensitivity to be conveniently monitored.