A new kind of colliding‐beam device that stores 25‐GeV protons and antiprotons is being built at Academic City, Novosibirsk, USSR. The device is the third storage ring to be built there; a pair of 160‐MeV electron‐electron‐storage rings and a 700‐MeV electron‐positron storage ring are both operating. Academician G. I. Budker, director of the Nuclear Physics Institute in Academic City, described the devices in talks given at seven US laboratories last September.

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