GRAPES-3

The scintillators detect charged particles contained in extensive air showers produced by interaction of high energy cosmic rays in the atmosphere.

[citation needed] The next decade witnessed a variety of experiments involving high energy interactions and extensive air shower studies in this laboratory.

The world's largest multiplate cloud chamber was operated here[citation needed] as part of an air shower array and significant results[which?]

A triple set-up comprising an air Cherenkov counter, a multiplate cloud chamber and a total absorption spectrometer was operated in the early seventies to study the differences in the characteristics of interactions with nuclei of protons and pions in the energy range 10-40 GeV.

[citation needed] This enabled the time structure study of nuclear active components of air showers and led to the discovery that the nucleon-anti-nucleon production cross-section considerably increases with energy.